Into Unscientific Chapter 563

  Chapter 563 A package from the capital (ask for a monthly pass at the end of the month)

   More than three hours later.

  Boom—

  A U2 reconnaissance plane roared and flew over the base, without any intention of hiding its existence.

   And on the ground.

  Factory 221 is still the same as usual, and has made various preparations before the reconnaissance plane flies:

  The living area puts up the bedding,

  The warehouse has lined up a convoy of goods,

  The chimneys in the production area emitted thick black smoke.

  If you look further away.

   It can also be seen that several J-5 fighter jets tried to encircle U2, but were stretched by U2's light height difference, and gave up intercepting helplessly.

  Everything seems to be a replica of last time.

   Right now.

   Fifth Division Qian also stood silently by the window just like Zhou Shaoping who was hiding in the hidden building.

   His eyes stared motionlessly at U2 above his head.

  See this scenario.

   Xu Yun who was not far away also sighed slightly in understanding.

indeed.

   May I ask which self-respecting big country and its citizens will tolerate their own airspace being invaded by other countries' aircraft at will?

  This is like a village tyrant who acts arrogantly in a certain village.

   Usually, if he has nothing to do, he strolls around your door, picks some vegetables and fruits you planted, and occasionally swears at people.

   What's outrageous is that when your husband and wife are having a nightlife at night, he rushed into your house while nibbling an apple, lifted the quilt and looked at the couple lewdly.

  It wasn't until after some discussion that he left humming a little tune with his hands behind his back

   Who can bear this tmd?

  Ni. Only your grandson can bear it!

   After a long time.

  Fifth Master Qian took back his wandering thoughts just now, returned to the two of them, and poured a cup of tea for Xu Yun:

   "Comrade Han Li, drink some tea."

  Xu Yun nodded, because Min took the teacup and fed him to drink—after all, he still can't hold such a heavy object as a teacup.

   After a while.

   Fifth Division Qian calmly picked up the pen, and began to discuss missile design with Xu Yun and Yu Min.

  None of the three mentioned U2 who just passed over their heads.

after all

  Instead of talking harshly at this time, it is better to save a little tongue and solve the missile design problem.

   Then another hour passed.

  Chai Zhi and the other three groups returned to the classroom on time.

  This is an arrangement that was made when the groups were divided. Regardless of whether the group has produced results, they must return to the classroom at the end of the time—except for special circumstances that are only close to the goal.

   After everyone is seated.

   Fifth Master Qian still led Xu Yun to the front of the podium.

  I saw him pondering for a moment, and said:

   "Dear comrades, five hours have passed, now please report the calculation results of your respective teams."

   "Shi Jun, start from you."

   Mentioned earlier.

  After Xu Yun put forward the idea of ​​making a fool of himself, Fifth Master Qian divided the entire project team into four groups for derivation.

   Except Qian Wushi, Xu Yun and Yu Min are responsible for supersonic axisymmetric.

   There is also the calculation of the air-breathing propulsion power,

  Luo Shijun is responsible for the two-dimensional inlet configuration,

   and Wu Beisheng led the team to consider the close cone design of the fixed plane shape under the condition of viscosity.

  Although the difficulty of these three sub-items is far inferior to that of supersonic axisymmetric, they are all quite critical links.

   These links generally need to be calculated by CDF or PDF in later generations, but in this era, they can only be solved by manpower.

   Hearing Fifth Master Qian call his name.

   Luo Shijun, who was sitting in the second row, stood up immediately, with a trace of restraint on his fair face, and said slowly:

   "Old Director Qian, according to the calculation results of our team, the two-dimensional inlet configuration of the 'Zhuxianjian' missile is much more special than ordinary missiles."

   "It requires the side panels of the missile to be swept back, and the front body to undergo two-stage compression, which looks like an approximate rectangle as a whole."

   "The specific parameters are the length of the precursor is 23.5 cm, the area shrinkage ratio is CR0.94, and the L angle distribution is 12.9°-16.5°"

  Speaking of the concept of air intake, many people subconsciously think of the direction of application, most of which are fighter jets.

   After all, the air intake of the MiG 23 is a very representative topic in the machine circle, even in 2023 it will be a lively and exciting point.

   But actually.

  The scope of application of the air inlet is still very wide.

   For example, a launch vehicle.

   Another example is various types of missiles.

   99.99% of intercontinental missiles up to tens of meters long and individual missiles down to tens of centimeters have the structure of air inlets.

   After all, the purpose of the intake port is to realize the deceleration and supercharging of the high-speed airflow, and convert the kinetic energy of the airflow into pressure energy.

   With the increase of flight speed.

  The supercharging effect of the intake port will become larger and larger.

  In intercontinental missiles, the pressurization effect of the inlet can even greatly exceed that of the compressor.

   As for the 'Zhuxianjian' missile.

  Its volume itself is very small, and now it needs to increase the height of the air, that is, the angle of attack will change from a normal angle of attack to a large angle of attack.

In this situation.

  The flow field around the inlet will increase inhomogeneity, so how to deal with the configuration of the two-dimensional inlet during the research and development period is very important.

   Then Luo Shijun reported each parameter.

   Fifth Master Qian quickly drew the corresponding lines on the blackboard just like he had drawn the design drawings himself before.

five minutes later.

  Luo Shijun finished his report.

   Fifth Division Qian glanced at the parameters on the blackboard, folded his arms around his chest, and began to check.

   After a while.

  He suddenly stretched out his index finger and thumb, gestured the length of a vertical line in the middle, and compared it with a horizontal line on the other side.

soon.

   Fifth Master Qian raised his brows, and wiped away the parameters of the horizontal lines—a L/H ratio of 6.9.

  Then he put the chalk into the chalk slot, turned around and said to Luo Shijun:

   "Shi Jun, when you calculated the ratio of the expansion surface, did you use the height of the isolation section of the outer cover as the divisor?"

  Luo Shijun was taken aback for a moment, and subconsciously replied:

   "Exactly."

  Fifth Master Qian showed a trace of such an expression, shook his head lightly, and said to Luo Shijun:

   "Shi Jun, you are wrong."

   "Think about it carefully. Due to the volume problem, our Jade Sword missile casing can only allow the existence of a first-level compression angle."

   "So the separation of the lip shock wave must use the non-isolated section as a reference, otherwise there will be blockage in the inner channel - if you don't believe me, you can use the equation of the blockage state to find a solution, yes, do it now."

  Luo Shijun looked at the rare serious teacher, so he had to obey obediently.

  The situation that Qian Wushi said is not complicated, and the results can be easily calculated without the assistance of CFD.

   So fast.

   A number appeared in front of Luo Shijun:

  1.22.

   This number is a load ratio, and the specific concept is not important, as long as it is lower than 1, it means that there will be no blockage.

   But if it is equal to or greater than 1, it means

  The inner channel is clogged.

   Once the inner channel of the missile is silted up, the flow field of the outer channel will change drastically.

  Then the missile will

  Think of it here.

   On the foreheads of Luo Shijun and other team members, a row of fine cold sweat suddenly broke out.

   A few seconds passed.

   Gollum—

   Luo Shijun swallowed heavily, stood up quickly from his seat, and said to Fifth Master Qian:

   "Director Qian, I'm reviewing, our team ignored the situation of the first-level compression angle!"

   "Why don't you punish me, I have no objection to salary deduction, notification, or even imprisonment!"

   "Okay Shijun, you don't have to be so nervous."

  Fifth Master Qian waved his hand when he heard the words. After pointing out the problem, he seemed to become that kind mentor again:

   "Recognizing mistakes is a good thing, as for any punishment, there is no need to report criticism because of some calculation problems, so who will dare to take the task in the future?"

   "Don't talk about you and other comrades, even me, Comrade Yaoping next door, and Lao Guo from the base, who hasn't made similar mistakes?"

   "The key is not to commit the same crime under self-warning. Don't think too much about other things—the missile design will definitely go through at least one round of review after it lands. It is impossible for the error of the first-level compression angle to actually appear on the missile."

   Hearing Qian Wushi's words.

  Luo Shijun muttered a few times at the corner of his mouth, and then he sat back in his seat without a word, looking a little depressed with his head down.

  See this scenario.

   Xu Yun on the side was slightly taken aback, and a question mark appeared in his heart:

  What's the situation?

Of course.

   What Xu Yun was puzzled by was not that Fifth Division Qian did not punish Luo Shijun, but because

  According to the original history.

  This conversation should have happened fifteen years later.

   Mentioned earlier.

  Luo Shijun was the teacher of Yang Wei, the chief designer of the J-20. Mr. Yang Wei once mentioned an embarrassing incident about his teacher in an interview:

  It was the late 1970s, when Luo Shijun led a team to solve the convergence problem of nonlinear aerodynamic calculations at high angles of attack.

   Among them, Luo Shijun made a wrong calculation in the calculation of the aerodynamic angle, which was pointed out by Qian Wushi.

  The content of the conversation between the two at that time was similar to the situation above.

   Is this pure coincidence?

still

  Because of the appearance of Xu Yun, the 'little butterfly', some 'parameters' in the chaotic system have changed?

   Then Xu Yun shook his head, temporarily putting this thought behind him.

  Maybe it's just the inertia of history.

  My little butterfly isn't exerting any strength now, so it's impossible to really set off a big storm, right?

   Impossible, absolutely impossible!

   After Luo Shijun sat back in his seat.

   It was the turn of Chai Zhi, the deputy leader of the theory group, to stand up and start reporting the results of his group.

  Chai Zhi is responsible for the process of calculating the air-breathing propulsion power. After all, although the Zhuxianjian missile uses the waverider principle, it is still different from that kind of intercontinental ballistic missile:

  Although the missile can also turn vertically to horizontally by bouncing on the water, the final sprint cannot be separated from the engine anyway.

   And since it is an engine.

  Then thrust is a problem that must be considered.

Of course.

  Chai Zhi and his team, without Xu Yun's participation, naturally couldn't come up with a scramjet engine with an integrated airframe-propulsion design.

  The engine they developed is still a crankshaft-shaped through-pipe propulsion mode, and it is relatively mature in technology.

  In addition, Chai Zhi is the oldest and most experienced member of the whole group except the fifth division Qian, and has participated in many key project researches.

   So fast.

  Chai Zhi's report was not too problematic, and he quickly passed the initial evaluation by Qian Wushi and Yu Min.

   Immediately after.

   Fifth Master Qian turned his attention to the last person, Wu Beisheng who was sitting in the corner.

  Wu Beisheng is in charge of the project that considers the close cone design of the fixed plane shape under the condition of viscosity, which is also a very important part of the theoretical link.

   Students who have participated in the development of DF-17 should know it.

  There are actually many types of waverider models in waverider technology:

   For example, a wedge-guided waverider.

  Wedge guided waverider As the name implies, the reference flow field for generating this waverider is a wedge.

  The characteristics of the waverider in this configuration are obvious. The shock wave is a two-dimensional plane shock wave, and the flow field has high uniformity, which is convenient for parametric expression and subsequent optimization design.

  At the same time, the geometric configuration is simple and easy to design, and the aerodynamic parameters are easy to solve, etc. These are its characteristics or advantages.

  As for the disadvantage, it requires a three-dimensional reference flow field, which is more difficult.

   Another example is the cone-guided wave-rider.

  The conical waveguide and rider means that the reference flow field is a conic shock wave flow field, which can be understood as an ordinary cone with a straight generatrix.

  Its disadvantage is also that the shock wave configuration is three-dimensional, and the uniformity of the compressed airflow is poor.

  But the advantage brought by this is that the volume ratio of the waverider will be increased.

   Other than that.

  Waveriders include blunt cone waveriders, elliptical cone waveriders generated by asymmetric conical flow fields, and .

   Kiss cut cone waverider.

  The kiss-cut cone waverider sounds a bit similar to snakes such as Agkistrodon at first glance, but it is actually a waverider designed according to the close cone theory.

  This kind of waverider should be designed according to the way of slicing, angle by angle, which is very detailed and complicated.

  The advantages and disadvantages of this configuration should be a combination of the two-dimensional (wedge) and three-dimensional (cone) waveriders mentioned above.

   That is, the uniformity of the flow field in the middle area can be improved, and the volume ratio is also increased.

   The disadvantage is, of course, that it is more difficult to design.

all in all.

   It's the current step.

  If Wu Beisheng's design structure is okay.

  Then the entire missile design can enter the final demonstration stage, and the production of the entity is just around the corner.

  But if there is an error in Wu Beisheng's design.

   Then it is more complicated.

  Because in theory.

   Once Wu Beisheng and the others fail, it is basically unlikely to be due to calculations, but to the original thinking—that is, the problem of Xu Yun and his original thinking.

   While Wu Beisheng was reporting the results of his group.

  The main factory office is about one kilometer away from this room.

  Old Guo also hurried into Li Jue's office:

   "Old Li, what do you want from me?"

   "Oh, Lao Guo is here."

  Seeing this, Li Jue stood up from behind his desk and signaled Lao Guo to sit down:

   "Come on, sit down first."

   After Lao Guo took his seat.

   Li Jue poured him a glass of water, then put the glass in front of him, and asked:

   "Old Guo, how is the Zhuxian project going these days?"

  Although Li Jue is the general manager of the 221 base in terms of position, the Zhuxian project is also headed by him.

  However, considering that the "Four Swords" of the Zhuxian project involves a lot of professional knowledge in terms of organization, Li Jue, a big boss, is not very good at handling detailed information.

   Therefore, the task of dispatching and summarizing information for the entire project is still handed over to Lao Guo, which is equivalent to supervising the army.

  Old Guo glanced at Li Jue, knowing that the capital was probably asking about the progress of the project, so he introduced:

   "Overall, everything is going well. Among them, the Juexianjian team, that is, the research and development of the capsule under the charge of Director Liu Youcheng is the fastest. Now there are no donkeys with hair in the base."

   "The second place in progress is the research on the ultrwideband proximity fuze that Comrade Sun Junren and the others are in charge of,"

   "As far as I know, their team's theoretical derivation has ended, and it may start the physical trial tomorrow or the day after tomorrow."

   "But Comrade Wang Yaoping and Comrade Qian Wushi may not be so fast - especially Comrade Qian Wushi, the research and development of missiles has always been very complicated and difficult."

   Hearing what Lao Guo said.

  Li Jue nodded thoughtfully.

   Then he pondered for a moment, and continued to ask:

   "Old Guo, in terms of time, how long will it take for the Zhuxian platform to land?"

  Old Guo raised his head and glanced at Li Jue. This time, he did not give a direct answer, but frowned and asked:

   "Old Li, is something wrong?"

   Li Jue heard that he tapped his fingers on the table a few times, then motioned for Lao Guo to come closer, and said a few words in a low voice:

   "Europe.British Gaul"

  Old Guo listened, his pupils shrank suddenly.

   After a while.

  Old Guo took a deep breath, calmed down the shock in his heart, and said in a deep voice:

"Lao Li, judging from the current progress, it will take more than three weeks for the Zhuxian Sword to be officially in place." Let me explain in advance, it will explode in two days)

   "But now that such a situation has happened, I will try my best to do the mobilization work of comrades, and try to shorten the time."

  Li Jue nodded:

   "Then thank you for your hard work."

   Finished speaking.

   Li Jue thought of something again, with a trace of concern in his eyes, and asked Lao Guo:

   "Old Guo, how is your lung doing?"

   "Lungs? It's still the same."

  Old Guo Youyou sighed, leaned back on the chair, shook his head and said:

   "I recently took a few tablets of tetracycline hydrochloride given by the organization, and the effect is the same. I still have to cough up blood."

   "I think there is probably no possibility of saving this lung. I can only make more contributions to our country before I die. If I can live to the day when the atomic bomb explodes, I will die in peace."

  Lao Guo and Li Jue have a very good relationship, and they were very familiar with each other long before the establishment of the nuclear weapons project.

  So facing Li Jue, Lao Guo didn't hide the fact that he was coughing up blood.

Of course.

  No cover up is not covered up.

  If Li Jue asked Lao Guo to suspend his scientific research tasks in this way, Lao Guo would not obey what he said.

  See this scenario.

  Li Jue was silent for a moment, instead of comforting Lao Guo, he took out a box from the drawer.

   This box is small in size, similar to the ring boxes of later generations. The whole body is made of wood, and there is a buckle on the edge.

   Then Li Jue pushed the small box in front of Lao Guo and said:

   "Old Guo, this is something Comrade Qian Wushi brought from the capital, and the recipient is you."

   "Its confidentiality level is very high, and the organization specifically explained that it must be handed over to you by me. Now you can open it and have a look."

  Old Guo Wenyan blinked, with surprise on his face:

   "Something from the capital? Such a small thing?"

To know.

   Not to mention that Lao Guo's wife Li Pei is currently working as an English teacher in the foreign language teaching and research section of the University of Science and Technology of China in Luzhou, and she is not in the capital at all.

  Just because such a small box was handed over in such a high-standard way is not normal in itself.

   At the same time theoretically speaking.

   It seems that only the .

  Letter?

   Could it be a letter written by a friend of a special front or a leader of the capital?

  Think of it here.

  Old Guo couldn't help but flick the clasp up, and lifted the lid of the small box.

  The result is when you see the situation in the box.

  Old Guo was taken aback subconsciously:

  I saw this moment.

  In this palm-sized box, lying impressively

  Three small white tablets.

  At the same time, among the three tablets, only one is relatively well preserved.

  The edges of the remaining two pieces are scorched black, and the volume is so damaged that only about half of them are left. It looks like it was picked out from the fire.

  See this scenario.

  Old Guo couldn't help raising his head and looked at Li Jue:

   "Old Li, this is."

   Li Jue immediately shook his head and said:

   "Don't ask me, I don't know the specific situation—didn't I say that they have a high level of confidentiality."

   "Ministry Liu just called not long ago, saying that this is a special medicine specially sent by the chief to give you, you can take half of it first and see."

   "If there are no accidents, your lung condition should improve temporarily."

  Old Guo:

   Just when Lao Guo swallowed the first pill in a daze.

  In the classroom where the project team is located.

   Fifth Master Qian also nodded slightly to Wu Beisheng:

   "Trained comrade, thank you for your hard work."

   "The design and structure of your team is quite good, if nothing unexpected happens."

   "Our team's Zhuxian Sword will appear in the world soon."

Note:

The kiss-cut cone waverider involves a lot of data, even if I edited it myself, because there is no channel to verify whether I edited it or wrote the real parameters (soft beep: I really don't have the ability to get the real parameters. Yes.), so Wu Beisheng's report was directly cut in half, and this matter can't be blamed on the review, it can be regarded as avoiding suspicion.

  (end of this chapter)

Chapter end