Into Unscientific

  Chapter 562 U2 Sajia is worth it in this life (Thanks to the leader who rewarded Li after the sword left!)

   After a few minutes.

  Looking at Xu Yun who had just been lifted up from the ground, grinning crazily from the pain on his face, Fifth Master Qian couldn't help asking with concern:

   "Comrade Han Li, are you really alright?"

   "Do you want me to contact the staff hospital now and ask Dr. Lin Yu or Comrade Caihong to come and show you?"

  “.”

   Hear this statement.

   Xu Yun in the wheelchair was about to burst into tears from the pain, but he shook his head quickly:

   "Director Qian, no need, no need, I really have nothing to do."

   "Look, I knelt down. Keke, the knee I knocked down happened to be uninjured, and it was a sound bone."

   "The hoarseness is a little painful, but it's all flawed, and it will be fine after a while."

  Fifth Master Qian was still a little worried when he saw this, so he bent down and took a few glances himself.

   After confirming that there is no wound on Xu Yun's knee.

  He pondered for a moment just now, and reluctantly agreed to Xu Yun's idea of ​​staying at the scene:

   "Okay, then don't contact the hospital for now."

   "But Comrade Han Li, once you feel uncomfortable, please don't hold back, you must speak up, understand?"

   It is not an exaggeration to say.

  Currently, the importance of Xu Yun can be called a national treasure, even surpassing that of Gun Gun. If Xu Yun is a mummy, then his rarity is equivalent to that of Ramses III of Egypt.

   Oh, maybe Cleopatra VII

   Finish these.

  Fifth Master Qian couldn't help but look at Xu Yun again, and asked with a strange expression:

   "Speaking of Comrade Han Li, you sit in this wheelchair well, why did you suddenly fall down?"

  “.Stop talking.”

  Xu Yun shook his head with a wry smile, and said out of focus like Mrs. Xianglin's wife possessed her:

   "I deserve it, I'm stupid, really."

  Xu Yun's remarks are not self-deprecating.

  He felt really stupid.

  221 base,

  round-faced middle-aged people,

   Math group,

   nicknamed 'greater than',

   plus the current time point

   With these key words in front of him, Xu Yun has not realized the true identity of this greater than

  Then he really deserved it for his fall.

  This is Yu Min

  In Xu Yunlai's later life.

   There is a saying that has always had a market on the Internet:

  China's local physics circles have never produced giants, and the mathematics circles are even worse than the physics circles.

  This sentence is actually not correct.

  For example, in the current era, a double genius of mathematics and physics appeared in China.

  He is Yu Min.

   That is the legend.

  Father of the Chinese hydrogen bomb!

  If Yu Min’s life is described in online novels, it can be summed up in this sentence:

  He is the son of God who was born when the fate of the country gathered after the founding of Huaxia.

  Yu Min is a native of Lutai Town, Jinmen City. He studied in the Physics Department of Peking University and only received domestic related education from the beginning to the end.

After graduation.

  Yu Min joined the newly established Institute of Modern Physics of the Huaxia Academy of Sciences, and officially started his life that was even more outrageous than cheating.

  He first founded my country's first nuclear physics training course with Professor Yang Liming of Peking University, and published my country's first nuclear theory monograph.

  This work has far-reaching influence. Until 2023, many nuclear theory majors are still using this book for teaching.

   Then in the process of developing nuclear weapons.

  Yu Min was ordered to undertake hydrogen bomb research when he was in danger.

To know.

   is not the same as the atomic bomb.

  Although the manufacture of the atomic bomb was relatively difficult, there were still some data for reference at the beginning, and there were traces to follow.

  For example, the obvious formula of the chain reaction is not a secret, but the difficulty is the detailed derivation.

   But hydrogen bombs are different.

  There is no information on the hydrogen bomb at that time—not a single letter of the English language.

  So Yu Min's difficult opening is hell.

for example.

   Now here to tell readers a piece of information:

  Handsome, there is a thing called a hydrogen bomb in the world. The principle is roughly nuclear fusion, that is, atomic nuclei are twisted together at high temperature to release energy.

   Well, that's all there is to it—and then I'll let you figure this thing out.

   Outrageously

  Yu Min actually agreed.

   What's even more outrageous is that Yu Min finally made the hydrogen bomb under such circumstances

   Students who have studied hydrogen bombs should know it.

  The current hydrogen bomb has only two configurations.

  One is Taylor Ulam. That is the T-U configuration.

  The other is the Yu Min configuration.

Of course.

   No one has ever seen real data for the above two configurations, and no country has disclosed any principles about hydrogen bombs.

   But one thing is certain.

   That is, the first hydrogen bomb test device across the sea weighed more than 80 tons, and the first dropable hydrogen bomb weighed 21 tons.

  Basically, only the opposite side of the sea can the plane move.

   And the rabbits guess how much their first hydrogen bomb weighed?

   The answer is only 1 ton.

  And the first hydrogen bomb test of the rabbits at that time dared to directly achieve miniaturization by airdrop.

   Just that.

   is enough to prove that the principles of the rabbits are completely different from those on the other side of the sea.

in 2014.

  Yu Min won the highest national science and technology award.

  However, it is not his honor to receive this award, but the honor of the highest national science and technology award.

  Yu Min has been incognito for decades, and led the team to make great contributions to the development of China's nuclear technology.

   Not only freed New China from the haze of nuclear blackmail, but also enabled Chinese people to manufacture advanced nuclear weapons by themselves, making an incomparable contribution.

   But all this was not known to the world until he was 72 years old.

correct.

   By the way.

   In Hearts of Iron 2, the best World War II grand strategy simulation game on Earth.

  If you successfully unify China, you will still face the Chinese mainland with poor nuclear technology capabilities.

  At this time, the nuclear technology team across the sea has Oppenheimer,

  German technology group includes Heisenberg,

  Even Neon has Yoshio Nishina.

   So who is there in China?

  p Club told everyone an answer:

   Yu Min.

   And according to the time to count.

  At this time, Yu Min is in a relatively [unemployed] state:

  He was transferred to the light nuclear team not long ago, but he will not be formally appointed by Qian Bingqiong until November this year.

   Therefore during this period.

  Yu Min worked as a temporary worker in the calculation team of the base.

   That's right.

   Numerical groups, not other physical groups.

  How strong is Yu Min's math ability?

  When he was studying, Peking University once organized a math test.

  At that time, students in the physics department scored an average of 20 points in the test, top students in the mathematics department barely scored 60 points in the test, and Yu Min scored 100 points in the test—this is a true story, recorded on the official website of Peking University Alumni Records.

   Xu Yun actually knows all this information, after all, Yu Min's position in the entire nuclear weapons research process is really too important.

  How to know is one thing.

  Awareness is another matter.

  So ever since.

  After Yu Min revealed his identity, the defenseless Xu Yun was so surprised by 'Greater than'.

   Just like Wang Lang, he got off the horse. Ahem, he got off the wheelchair.

  At the same time, at the moment of returning to God.

  The first thought that popped into Xu Yun's mind was not whether there was any fracture, but whether his kneeling posture was standard

   After all, this guy is a real boss, and he wouldn't be embarrassed at all to kneel down.

  “.”

   After a while.

  Xu Yun took a deep breath, turned his head, and said to Yu Min in front of him:

   "Great than Comrade, right? I've read your derivation, and it's indeed very subtle and reasonable."

   "Thank you very much for your hint, so that our equation fitting can continue."

   Hearing Xu Yun's words.

   Da Da scratched his hair shyly, and could vaguely see the shadow of the humble old man later:

   "As long as you can help, as long as you can help."

   "Actually, Comrade Han Li, let me tell you the truth."

   "After seeing the weather Doppler radar you designed, I've always wanted to get to know you—its principle is so ingenious."

   "So if there is a chance in the future, can I ask you a few questions? —Don't worry, I will leave every time before the meal time, and I will never let you have a meal."

   Hear the word "ask for advice".

  Xu Yun was shocked like an electric shock for a moment, and his scalp was numb and he waved his hands:

   "Don't dare to ask for advice. You are better than comrades. Your math level is much better than mine."

   "If you don't mind, let's discuss it normally, maybe I should ask you a question."

joke.

  Don't talk about Xu Yun.

  Even in the Chinese scientific research community in 2023, there are not many people who can afford Yu Min's advice—this is still considering the situation of meritorious generations like Yang Lao Wang.

  If you put aside these single academic abilities, I am afraid that you can only find that kind of person on bhukou.

  After all, this is the ultimate master who can simulate a nuclear explosion in his mind.

   And the other side.

   Looking at Xu Yun's cramped reaction that he had never had before.

   Fifth Master Qian couldn't help but glance at Yu Min who was at the side again, with a thoughtful look on his face

  Afterwards, Xu Yun and Yu Min forcibly dragged each other, and finally finally persuaded the boss, and proceeded to the next step with a relatively equal attitude.

A few minutes later.

  Xu Yun and Yu Min returned to their original positions, and Fifth Master Qian went aside to continue his deduction.

   "Comrade Da Da, since the expression of the cross-section state has been solved, it is time to carry out the numerical calculation of the fitted flow field."

  Xu Yun took a pen and thought for a moment, then said to Min:

   "Greater than Comrade, do you have any thoughts on this part?"

  Yu Min has a relatively humble personality in life, but now that it involves technical discussions, he doesn't hide his clumsiness.

  Yu Min quickly picked up a pen and wrote down several parameters on paper:

  Ma=0.729

  AoA=2.92°

  Rec=6.5×106

   Then he put down the pen with a click, pushed the piece of paper in front of Xu Yun, and said:

   "Comrade Han Li, these are the experimental parameters I calculated by myself just now, why don't you substitute them in and have a look?"

  See this scenario.

  Xu Yun instantly had question marks on his face:

   "???????"

   Right now.

  Xu Yun suddenly had a strong desire to complain:

  Who the **** is the time traveler?

To know.

  Since Synge published an article titled "Aerodynamicsymmetry of projectiles" in 1949, the physics community has begun to deduce the mathematical expression of aerodynamic parameters.

  That is, the aerodynamic coefficient can be expanded into a series expression form, and the low-order terms can be retained by truncating the high-order terms to make it practical for engineering.

   As for the so-called fitting.

   refers to the specific expression of the series expansion, that is, the important thing is to determine the coefficients.

   Then use the state quantity to substitute to solve the aerodynamic parameters of the unknown state, which is a high-resolution process and very complicated.

  The above can be described in human terms as

  First use a series of equations to derive another equation, and then solve the equations to get the final answer of the three variables XYZ.

   And what about the current situation.

   is equivalent to the first step.

  That is to say, Xu Yun finally deduced the expression of another equation, and asked Yu Min about his idea of ​​solving this equation.

  Follow the traditional story development.

   Both parties should put forward various ideas for solving the equation, and then discuss their feasibility one by one, and the relationship between each other is also slowly increasing during the discussion.

  Finally determine a direction, and work together to start solving.

   Then stop writing at the same time after a period of time, and gently push the answer to the other party for an exchange test.

  Finally found that the answer was exactly the same, looked at each other, and laughed like seeing a confidant.

   But at this moment.

  Yu Min's approach is equivalent to yelling and discussing der.

   Then he threw several solutions of the equation on the table, and said to Xu Yun, you can verify it by reverse derivation.

  If I’m right, I’m going to play basketball. Everyone else has already arrived at the court in a hurry.

  (╯‵ ′)╯︵┻━┻!!

   Is this tmd kidding?

  I didn’t even have a firm idea on my side, yet Yu Min actually took out the answer directly

To know.

  The experimental report of the fifth division of Qian was regarded as the top secret of the state before, and it was guarded by special personnel. Even if Qian Bingqiong wanted to check it, he had to declare it in advance.

   In other words.

  Yu Min could only know the existence of the report and see the details for the first time after the group was grouped.

   And in this short ten or twenty minutes.

  He not only clarified the specific ideas, but also listed the equations and solved the answers.

   In the end, there was even time to watch a play next to Xu Yun?

  This tmd is not hanging or something.

  But considering that Yu Min can make out of Min's configuration, these things don't seem so unacceptable?

  After all, compared with Yu Min's configuration, the difficulty of this situation is far less.

   Then Xu Yun thought of U2 across the sea.

   I don’t know which U2 will be so unofficial. Or the European Emperor, who is lucky to die in the hands of so many Tongtian generations.

  Really, this life is worth it.

  “.”

   After a while.

  Xu Yun put away the surprise in his heart, and turned his attention back to reality.

   After all, surprise is nothing but surprise, what should be done still has to be done.

   So soon.

  Xu Yun picked up a pen and calculated the three sets of values ​​given by Min.

   lies in the parameters given by Min.

  Ma refers to the Mach number,

  AoA is the angle of attack,

  Rec is

  Critical Reynolds number.

   Among them, the Reynolds number is a numerical value named after Reynolds.

   At that time, Reynolds discovered based on a large number of experiments that the transition process from laminar flow to turbulent flow was very complicated.

   This process is not only related to the flow velocity v.

   It is also related to the fluid density ρ, the viscosity coefficient μ and a certain characteristic length d of the object—for example, the diameter of the pipe, the width of the wing, the radius of the sphere in the fluid, etc.

  Finally, he integrated the above factors and introduced a dimensionless quantity ρvd/μ.

   Later generations named this dimensionless parameter "Reynolds number".

  The flow state of the fluid is determined by the Reynolds number. When the Reynolds number is small, it is laminar flow, and when the Reynolds number is large, it is turbulent flow.

   That is.

  The greater the flow velocity, the longer the distance across the surface of the object, and the greater the density, the easier it is for the laminar boundary layer to become a turbulent boundary layer.

on the contrary.

   If the viscosity is greater, the flow will be more stable and less likely to become a turbulent boundary layer. (Recently, there are more readers because of anti-theft. Let me explain here. This kind of throwing concept is really not hydrology, but will be used later, but if it is thrown out later, then the whole chapter does not need to write the text, so every few days Chapter toss one.)

   Then soon.

  Xu Yun substituted these parameters into the equation.

  “MA0.729AoA=2.92°Rec=6.5×106”

   "Then the Freeflow parameter is 288.15"

   "The boundary condition refers to the penultimate formula in Chapter 559, and the general parameter is 0.61"

   "Finally substituted into the convergence criterion, the surface pressure distribution is 6.66632"

   "The first formula is correct, and the energy between the sections is conserved, so the calculated L0 should be 0.231."

   Write here.

  Xu Yun stopped the pen in his hand and began to compare the form of Qian Wushi.

  The actual sample of this form of Qianwu Division comes from the ballistic wind tunnel across the sea. Today, there are only three countries in the world with ballistic wind tunnels in this era, and Huaxia is not included.

  This is why this material is listed as such a high-standard file.

   Then soon.

  Xu Yun found the corresponding L0 value of MA=0.7 on the file.

  It is impressively so.

  0.229!

no doubt.

  The three values ​​that Yu Min gave are indeed accurate solutions.

  Xu Yun:

  “.”

   Live in vain.jpg.

   Then in the following time.

   Xu Yun’s group has a very strange style of painting, and the content of the conversation is almost like this:

   "Greater than that, the B and C regions of the medium gap need to do a written calculation of the Kolmogorov scale energy spectrum, so the dissipation rate must be calculated first."

   "No need to calculate, 17.63%, Comrade Han Li, please check the calculation."

   ". is greater than, the wave number is accumulated by all the large-scale components of the velocity, and v^k is the Fourier coefficient of the velocity, so it needs to be scaled multiple times"

"No need, Comrade Han Li, we just assume that for any fixed K, the cumulative dissipation of all scales greater than 1/K should be 2νΩK≤2νK, where E→0, when ν→0, ΩK can be directly absorbed It's figured out, look."

   "Then this irregular velocity field."

   "It's also simple, assuming the shear stress of a solid wall on the fluid, and then write the product of the contact area and derivate it?"

be honest.

  From the first crossing to the present.

  For the first time, Xu Yun felt a subtle emotion of doubting life:

  He seems to have turned into the aborigine who was taken flying, and Yu Min beside him is the time traveler.

   Almost as soon as Xu Yun mentioned his thoughts.

  Yu Min can quickly give the corresponding answer, and the accuracy is very high, even if there is a mistake, it can be corrected quickly.

  So ever since.

  With the ‘assistance’ of Yu Min.

  Xu Yun solved the problem he was responsible for with little effort.

   No wonder so many people like to lie down and win, this feeling is really cool.

   Ten minutes after Xu Yun's team completed the calculation task.

  The back pressure ratio that Fifth Master Qian was personally responsible for also had results.

  Back pressure ratio.

  Military or aerospace enthusiasts should know.

  Whether it is a large aerospace liquid rocket, some modern tactical missiles, or even a modern fighter after the third generation.

  The tongues of flame they spew out after the afterburner is turned on. That is, the tail flame, most of them have a jointed appearance.

   This is a physical phenomenon in which the speed of the jet exceeds the speed of sound when the engine power of the aircraft is fully turned on.

  This phenomenon is professionally called Mach disk or Mach ring, which is a translation discrepancy and a very common problem of interpretation.

  It is caused by the shock wave generated by the tail jet, forming a continuous expansion wave and compression wave system in the air.

  The mathematical derivation of these expansion waves or compression waves is related to the back pressure ratio.

   Indeed.

  The concept of back pressure ratio is commonly used in jet nozzles and missile fields. Especially for small missiles, there are not many cases where back pressure ratio is considered.

   But don't forget.

  The missile designed by the Fifth Division Qian this time requires an extremely fine aerodynamic structure, and the back pressure ratio is related to the positioning of the supersonic axisymmetric in the real situation—the specific equation has been mentioned before.

   Therefore, the calculation of the back pressure ratio has become a very critical part.

  Then Fifth Master Qian put his calculation results and Xu Yunyu Min's results side by side in front of him, and began to make a summary.

   "R(l)/l=0.1V/l^3=0.02"

   "Flow field parameter distribution and leading edge surface shock interval are 0.4, 2.6, 2.9"

   "The total shrink ratio of the precursor inlet is 6.2, which includes the precursor compression part, the total shrink ratio of the inlet port is 5.2, and the inner shrink ratio is 1.6"

   "The distribution of the mass-weighted Mach number is around 3.0, the pressure rise coefficient is basically above 20, the total pressure recovery coefficient is the largest when the angle of attack is equal to 2°, and the rest of the states are close to 0.6"

  Fifth Master Qian's eyes quickly flicked over these parameters, and his slender and callused right hand quickly sketched on the calculation paper.

   Each time a parameter is scanned.

  His right hand will draw the corresponding graphics within five seconds.

   This is the extraordinary ability he has accumulated over thirty years. If he doesn't have some skills, how can Fifth Master Qian be valued so much by Haidian?

  If Yu Min is a human computer.

  Then Fifth Master Qian is a human figure analyzer.

  Each parameter is analyzed by Qian Wushi's brain at high speed from the moment it enters the retina and is imaged in the rear.

  Looking at Qian Wushi's pen tip jumping rapidly on the paper.

  Xu Yun, who was watching from the sidelines, suddenly felt another emotion.

  This emotion is a bit subtle.

   It is not a desire to complain, nor is it an ethereal touch—Xu Yun has not yet reached that level of sensibility.

  How about this emotion?

  Smart classmates should still remember it.

  In the past three dungeons, Xu Yun had organized one or more rounds of mathematical operations.

   For example, in Mavericks copy.

  He and Xiaoniu have deduced the simplification of binomial and discussed the problem of infinitesimal.

  In the copy of Lao Su.

  He calculated the parameters of the telescope together with Jia Xian and others, and after Xiao Zhao took the throne, he found hundreds of ancient people who were proficient in numbers to calculate the design parameters of the aircraft.

  In the wheat instance.

  Xu Yun calculated the orbit of Pluto together with Gauss, Riemann, Dirichlet and others, and calculated the orbit of Pluto a year later.

  But no matter which one of the above calculations.

  Xu Yun can’t say that he carried alone, but almost all of them are in a leading or guiding position.

   During these processes.

  Xu Yun is like the jade seal that was rewarded in the 1850 copy, but he is actually a little lonely in his heart.

  There is no one around him who can really match the frequency with him, not even Gauss Riemann and Wheat.

   But this time it was different.

  Although Xu Yun still pointed out certain directions, there are people around him who can keep up with his thinking and even optimize his thinking.

  When the identities of these people are added with the attributive [New Chinese ancestors]

  Xu Yun suddenly found that there was some warmth around him, instead of the noisy cold wind and the lonely starry sky.

  Maybe this is it.

  Collective power?

   Twenty minutes later.

  A sketch with simple lines but complex structure suddenly appeared in front of the three of them.

   This is a very special structure.

  It uses the streamline tracing method to obtain the minimum wave resistance cone-guiding waverider,

  The shock wave of the waverider presents an outwardly convex outer cone feature, which fits closely on the leading edge of the three-dimensional inlet lip.

  At the same time, the waverider characteristics of the waverider itself are not affected by the inlet channel placed inside the flow field, and the shock wave is close to the side edge of the front body;

  The shock wave of the inlet itself exhibits the characteristics of an inner cone, concave to the inside, and close to the leading edge of the inlet.

  The three-dimensional inwardly turning inlet is obtained by tracking the inner cone flow field on the axisymmetric curved surface through the capture profile matching the waverider.

   At the same time, the gradual surface change technology is used to obtain the inner compression channel with a circular outlet in the isolation section, and the flow capture rate can reach 0.99.

  It is described in terms of later generations.

  【Total pressure recovery coefficient and pressure rise characteristics are within a good range. 】

to be honest.

  Because the results of the other three groups have not been summarized, the structure of this sketch is not complete:

  It only depicts the internal and external structure of the missile joint.

  But in the eyes of professionals like Qian Wushi.

  It is an extremely exquisite design drawing of the first version of the missile.

  As long as [this and that], it can become a real missile.

   In other words.

  In the missile design process, the most critical link has been solved.

   woo woo woo —

   Not long after Qian Wushi finished drawing the design.

  The urgent alarm sounded outside the window.

   Hear this statement.

  Xu Yun, who was still looking at the design drawing, subconsciously raised his head to look out the window, and frowned slightly at the same time:

   "Strange. It's only been a few days, why is U2 here again?"

   "Nothing surprising."

  As soon as Xu Yun finished speaking, Fifth Master Qian beside him waved his hand, saying indifferently:

   "Probably because some people couldn't find me in the capital, so they came to the northwest in a hurry to have a look."

   "Similar situations are quite common. The last time I secretly went to Zhejiang Province to eat vinegar fish in West Lake, U2 just circled the northwest for three full days."

  Xu Yun was taken aback for a moment.

  Some people can't find Fifth Master Qian?

   But soon.

  He then understood what Qian Wushi meant.

right.

  Started with the advent of meteorological Doppler radar.

  Sun Junren, Luo Peilin, Wang Lao. In addition to the Fifth Qian Division this time, many batches of "reinforcement troops" have come to the base from the capital.

   This lineup looks quite luxurious, but there will be a situation in the capital:

  The porters, vendors, or noodle shop owners at their doorstep must have some people with serious occupations but malicious intentions, and they find that the targets they follow every day are missing.

In this situation.

  It is reasonable to increase the frequency of U2 sailing across the sea.

  Think here.

  Fifth Master Qian couldn't help but stood up from his seat and walked to the window.

  He first glanced out the window at the sideline team members who were carrying 'props' such as bedding to cover the radar, and then looked up at the sky.

  His eyes seemed to pass through thousands of kilometers through the blue sky above the base, and saw a black reconnaissance plane approaching the base:

   "Hurry up and fly a few more times, after all, it won't be long before you will never have the chance to enter our airspace, forever."

Note:

  If you still have a monthly pass, please vote for it. If you can keep the monthly pass, you can get +1000 achievement points next month, and this book should be able to get one star of glory.

  Although one star of Glory is a bit of a rotten street now, so that a Golden Alliance can directly get two stars, but there are not many books that don’t really rely on krypton gold to get one star. This is a real one-star medal, so ask for a monthly pass!

   In addition, thanks to the leader who rewarded Li after the sword left!

   Push a friend’s book,

  (end of this chapter)