After asking this question, Zhou Jingming did not continue, but looked at Su Wangting with a smile on his face, waiting for his answer.

Su Wangting was suddenly stuck there, and his old face instantly turned red. The main reason why he avoided the important and did not talk about the influence of air resistance on the dynamics of automobiles in this paper, but focused more on analyzing the effects of the other three types of resistance was that he did not know much about aerodynamics, especially automobile aerodynamics.

Su Wangting himself is from agricultural machinery, and automobiles have been divided into agricultural machinery majors for a long time, but Su Wangting himself likes cars very much, so the research direction is more inclined to automobiles.

As a branch of mechanics, aerodynamics developed abroad very early, and he grew up on the basis of fluid mechanics with the development of the aviation industry and jet propulsion technology, that is, aerodynamics was initially applied to aviation flight.

The research and application of aerodynamics in automobiles has led to the emergence of this branch of automobile aerodynamics, especially the outbreak of the oil crisis, which has made Western countries pay more and more attention to automobile fuel consumption, and automobile aerodynamics has also ushered in its own development spring.

Su Wangting is not unaware of the impact of air resistance on the dynamics of the car, in fact, he has also been making up for this knowledge during this time, but it is too painful to become a monk halfway, especially in China, there is very little research on this aspect, and the relevant papers are almost invisible, and Su Wangting does not understand English, and foreign journals cannot be understood, which has led to today's embarrassing situation.

Originally, Su Wangting wanted to draw a scoop based on the gourd and copy the aerodynamics of aviation to the car, although there were similarities in the study of the flow field, etc., but the car was a blunt body driving on the ground, and the driving state was extremely complicated, which made Su Wangting's head bigger, and finally gave up at all.

Although there is a suspicion of avoiding the important and light, Su Wangting thinks that the analysis of rolling resistance, slope resistance and acceleration resistance is still in place, and the improvement of several points to reduce resistance is also very forward-looking, and several teachers in the academy also praised this paper.

I thought that air resistance was a turning page, and I would wait until I would learn more about it in the future, and then continue to study, but who knew that such a freak as Zhou Jingming suddenly appeared, and Su Wangting's Xiao Jiujiu was exposed on the spot, and suddenly he couldn't hang up his old face.

Su Wangting scratched his head helplessly, and pushed his reading glasses by the way, like a child who had done something wrong.

Looking at his performance, Zhou Jingming knew what the answer was, and he couldn't help but regret a little in his heart, a professor and chief expert in his family, was asked by a kid like you who didn't graduate from college, and he must be very angry in his heart.

Su Wangting didn't speak, and Zhou Jingming didn't dare to speak without permission, the two of them froze there like this, the scene was very embarrassing for a while, and Zhou Jingming even hoped that someone would laugh at this time.

"To be honest, no...... I don't really understand. Just when Zhou Jingming was thinking about how to break this embarrassment, Su Wangting suddenly said.

This time it was Zhou Jingming's turn to be stunned, and the other party directly admitted that he didn't understand, could it be that he wanted to say, "Then I'll teach you"?

Isn't it too flamboyant?

What's even more nonsense is that the melody of the theme song of "Where Are You Going, Dad" actually sounded in Zhou Jingming's mind, and it was automatically adapted, and he almost sang it.

"Teacher, do you know how to solve aerodynamics?"

"No, it won't. ”

"Then I'll teach you. ”

"Okay!"

“#@￥%”

"You've got a solution!"

…………

"Teacher, teacher, where are we going?"

…………

Damn, why is such a serious occasion so entertaining?

Not only Zhou Jingming was stunned, but the rest of the teachers in the office were also speechless, thinking that Zhou Jingming was just pretending, but who knows, what kind of aerodynamics is this, even Professor Su doesn't understand?

Who is Professor Su?

There was something he didn't understand!

Could it be that this kid understands??

"This ...... If you don't understand...... It's not impossible...... "Zhou Jingming was hesitant and didn't know how to continue.

"I mean, if you understand, you can tell me about it! Confucius said, threesome, there must be my teacher, and the cloud, knowing is knowing, not knowing is not knowing, is knowing! Why don't you kid go to the Tao!"

Su Wangting, who was very kind just now, suddenly widened his eyes, his face flushed, and he roared with spittle, looking at his expression, he looked like an elder who hated iron but not steel.

Zhou Jingming wiped his face, he felt that Su Wangting's appearance just now was simply too cute, but with this temper, it is estimated that he was scolded a lot when he exercised.

The other teachers in the office looked at each other and smiled, don't look at Su Wangting's usual amiable appearance, start a fire, and even the dean has to be scolded.

"What are you looking at!"

Su Wangting straightened his glasses, his eyes widened again, and he took a pen in his hand, "Well, the pen is for you, you talk about it, and I'll listen to it." If you don't explain me clearly today, you'll go back!"

Zhou Jingming took the pen and pointed to his seat, "Professor Su, why don't you sit and listen?"

"Now you are the teacher, I am the student, how can there be a student sitting, the teacher standing to talk about the reason, you come to sit!" Although Su Wangting said generously, he always felt that something seemed wrong.

Since I'm a teacher, why don't you listen to me obediently? Besides, it's the students who sit and the teachers who stand in class.

Zhou Jingming muttered a few words in his heart, but still sat down honestly.

"First of all, let's clarify several classifications of automobile air resistance, there are two main ones, pressure resistance and friction resistance, and pressure resistance is divided into shape resistance, interference resistance, internal circulation resistance and induced resistance. ”

As he spoke, Zhou Jingming drew the outline of a car on paper, and from different sections, he showed the causes and distribution of each resistance.

At this time, Zhou Jingming's momentum also changed suddenly, as if sitting here was not a college student who had not yet graduated, but the once powerful Zhou Gong!

Even Su Wangting himself looked at him with some surprise, as if he was really a student.

"Among these resistances, shape resistance accounts for the largest proportion, accounting for more than half, with such a concept, I will add some theoretical knowledge of aerodynamics. ”

"The induced resistance you said should refer to the projection of air lift in the horizontal direction, and the air lift is because the air flow rate at the top and bottom of the car is not the same, the air flow rate at the top is greater than the flow rate at the bottom, the greater the flow rate, the smaller the pressure, which leads to the pressure at the bottom is greater than the pressure at the top, resulting in an upward pressure, which is the air lift. ”

Su Wangting looked at the schematic diagram drawn by Zhou Jingming, touched his chin and said.

"That's right!" Zhou Jingming nodded, it seems that this Professor Su is not completely ignorant of air resistance!

"But that's an ugly thing you write!"

Just when Zhou Jingming was about to continue speaking, Su Wangting suddenly came up with such a sentence.