Coquettish Rebirth

When the clay model was moved to the model wind tunnel laboratory, Jia Hongjian looked at the 1.2-meter-long model with anticipation.Such a clay model actually makes laymen look at it and would not think that this model is made of mud!Because this thing feels very hard even if you touch it with your hands!This is the characteristic of oil sludge, it will soften when the temperature is a little higher than normal temperature.But after the sculpture is shaped and placed at room temperature, the model will soon harden, as hard as plaster!Like such a model, when making it, it is wrapped in a heat-proof plastic bag and soaked in hot water. After half an hour, it will be as soft as plasticine.Then, in the process of making the model, it will harden a little bit, just in time to finalize the shape, and at the same time allow designers to refine the details of the shape.

Such a clay model is quite finely made, and the appearance looks quite credible. Not to mention, some parts of the exterior of the real car are made on this model to perfection—the windows and other positions, although they are still made of clay. Yes, but the interface between the metal door and the window around the window has been carved out, and a black line is drawn around the edge of the window to represent the different materials on the outside.For example, the tires are of course also made, and even the pattern is carved on the surface of the tires!Other things like a bowl-shaped depression on the door handle are also made, and even the wipers on the windows are carved!After all, this model is to be used for blowing holes, although the size of some details may be slightly different from the real car, but that is out of control.The details that can be controlled must be exactly the same as the real car!It can be said that if the model is not the color of yellow mud on the outside, if it is painted, it will look the same as the real car.Except the size is smaller!

After such a model was placed in a transparent wind tunnel box where a person could lie down, everyone left the laboratory and was ready for the operator to start operating the wind tunnel.When the big fan at the end of the wind tunnel box slowly started to turn, a very thin pole appeared horizontally near the front of the car model.This pole is used to release smoke - after all, the air is transparent, if there is no smoke, who can see how the airflow is disturbed?After such a pole puts smoke on the front of the car, the wind will carry the smoke all the way to the car model, which can show the aerodynamic shape.soon.The wind speed increased, reaching a speed of 200 kilometers per hour.At such a speed, the pole in front of the car began to emit smoke.With a swish, the smoke rushed towards the front of the car with the wind, and then floated on the surface of the car like a magnetic levitation, all the way along the shell of the front of the car and rushed to the windshield.

At such a time, apart from Jia Hongjian, Guo Konghui and many designers were nervously watching the smoke that had already covered the roof of the car.As the Chief Technology Officer, Mr. Guo Konghui doesn't know much about David.After all, David wasn't even the head of the design department.Who is qualified to complain to Guo Konghui face to face?But other designers knew about these things, even the complaining David himself was watching the test results behind Jia Hongjian!At this moment, he kept praying to his God in his heart, hoping that such a model as Jia Hongjian's aerodynamics would fail, and that his grades would be a mess!That's the only way to prove him right!As for the other designers, they all hoped that Jia Hongjian would win!Don't say anything else, as long as Jia Hongjian is usually so kind to everyone, everyone also hopes that Jia Hongjian will win!And the foreigner talks strangely all day long, who would be willing to hope that such a person wins?This kind of person can speak ill of the boss today.If he wins, why don't you scold your colleague's wife in person?

At this moment, I saw the smoke passing through the roof of the car along the airflow and starting to go to the back of the car.And at such a time, some sharp-eyed people have already discovered that the smoke did not start to shake slightly after reaching the roof of the car along the airflow, but when it reached the back of the car, especially the small deflector set by Jia Hongjian Usually, eddy currents would start to be generated due to the peeling off of the adhesive layer, causing the airflow to tremble intensified, but at this time, the trembling was not so severe, it was only equivalent to the usual slight trembling on the roof of the car!Does this prove that the appearance of Jia Hongjian's design is better than before?When everyone was getting excited, David hadn't started to say weird words yet, but he saw Jia Hongjian smiled faintly, "Let's see how the data comes out later, it doesn't look very good just by looking at it with the naked eye. Reliable."

Whoa!Why does this sound like what David said?How could it be Jia Hongjian who said it?Just when everyone was so confused, David almost gave Jia Hongjian a grateful look—for a moment, he really felt that if Jia Hongjian was not the boss or an outsider meddling with the insider...or Jia Hongjian If Hung-chien hadn't been Jia Hung-chien, perhaps he could still be friends with Jia Hung-chien!

Soon, the wind tunnel test was over, the data was collected, and the operator sorted out the relevant drag coefficient. "Mr. Jia, the data is out. The drag coefficient of our model is optimized this time. The overall coefficient is only 0.27. If the site is lower and the crew compartment is lower, it is estimated that 0.22 will not be a big problem!"

"What? 0.27?" "Can it reach 0.22?" "If it is lower than 0.3, it is almost the data of a sports car?" Suddenly, a group of designers behind Jia Hongjian burst into various exclamations!That's right!The general drag coefficient of modern civilian passenger vehicles is 0.3-0.5. If a large flat plate is erected directly and pushed to run, the drag coefficient is 1.0, and when a sphere is propelled, the drag coefficient is 0.5. Generally, cars range from high-end to The low-end wind resistance is about 0.3 to 0.4, and the SUV wind resistance coefficient will reach more than 0.4 because of the high chassis and the overall thicker.A sports car is at least lower than 0.3, and a luxury sports car has a drag coefficient in the early 0.2!Like a bird flying in the air, it generally has a drag coefficient of 0.1-0.2, like an airplane that has been optimized for modern aerodynamics.The limit is the drag coefficient of 0.08!At present, the lowest wind resistance known to mankind is raindrops, which is only 0.05!

Although the drag coefficient of such a car designed by Jia Hongjian is 0.27, it does not seem to be as low as that of a high-end sports car.But the problem is better than the drag coefficient optimization of ordinary cars!For example, Volkswagen's polo is a so-called sports hatchback, and its drag coefficient is only 0.3!And after Jia Hongjian modified the plan in this way, the previous drag coefficient of 0.42 has been reduced so much in one fell swoop!It's all 0.27!At this time, if you run a 800-kilometer acceleration test, isn't the data better than many sports cars?That's right!This matter suddenly appeared in the minds of many people. Everyone knows that the suv made by Jia Hongjian is expected to be equipped with four electric motors, and the maximum horsepower output can reach 1.8 horsepower!The weight of the vehicle is only 1.4 tons when fully loaded, and the empty weight is about 1.5-3 tons!Who can compare with this unit power?In addition, the drag coefficient in this kind of suv is already against the sky.Why don't you approach [-] seconds to accelerate from [-] kilometers to [-] kilometers!

百公里加速3秒的数据，这绝对能吓傻一堆同行企业好么！要知道像是什么麦克拉伦啊什么保时捷的普通一些的跑车，那百公里加速也就是3秒出头而已！毕竟他们这是跑车而不是专业赛车！而像是保时捷962勒芒赛车这种专门的场地赛跑车。那才是能百公里加速达到2.8秒的存在！就算贾鸿渐弄的这suv最终百公里加速没有低于3秒，而是在3秒多。可是那速度也足以甩保时捷911一条街出去啊！保时捷911这么一个车，06款的加速也不过是4.1秒而已！一款suv，能够加速跑分里面甩开豪华跑车一条街。这是什么概念？这绝对会吓傻全世界的好么！

Of course.We can only achieve this when all four motors are working crazily. If we run normally, we may not be able to achieve such a result, but it should be easy to get a score of 3.8 or 3.9 in normal four-wheel drive, right?That also dumped several bodies of the Porsche 911, okay?Even in the dual-drive mode, it is estimated that our suv will not be left behind by the Porsche 911 too much!What kind of concept is this?This is an SUV that can have the performance of a sports car!This is just like the feeling of a rhinoceros with the speed of a cheetah!It's just a monster!Mr. Jia's design is too awesome, isn't it?That's it, that stupid David is still saying all kinds of weird things, and all kinds of accusing Mr. Jia of meddling?Let's see how this thing ends up now!

Thinking of this, many designers turned their heads to look at David at the same time, and then they found that David's face was pale.It seems that the whole person is stunned and can't believe the reality in front of him! "Mr. Jia is Mr. Jia, and the things he designs are amazing. Or how can you say that Mr. Jia is always a genius, everyone agrees?" At that time, a designer who was uncomfortable with David spoke up, and the first thing he said was to shoot Jia Hong Gradually flattering words!This flattering is not really for flattering, but for avoiding David!If no one speaks now and the scene is quiet, then David can still retain his final dignity, but if everyone surrounds Jia Hongjian in various ways, saying that Jia Hongjian is a genius, and even mentioning it a little bit from time to time. For a moment, some people looked down on Jia Hongjian's meddling... Isn't this just slapping David in the face?Doesn't this make David wish there was a crack in the ground to get in?

Someone spoke up, and the other designers were not stupid, and they all saw the situation clearly, and they immediately gathered around Jia Hongjian, chattering a bunch of flattering words, all of them The geniuses in Kuajia Hongjian are all of the high level in Kuajia Hongjian!At this time, Jia Hongjian turned his head to look at David, whose face had turned ashen, but smiled and stopped everyone's flattery, "Okay, okay, we're just blowing out miniature models, even scale models It’s not, let alone the whole car. Don’t be happy so early. It’s not too late to be happy when the real car is built and blown through the wind tunnel. Or wait until our car actually goes to the field to run 3 kilometers and accelerate, really. Call me a genius if I can run for more than [-] seconds!"

Hearing what Mr. Jia said, the designers all stared and smiled and stopped talking. Some of them followed Jia Hongjian's eyes in surprise and looked at David, who was on the side with a livid face. They couldn't help but began to wonder - didn't Jia always want to embarrass David too much?Does Mr. Jia really think highly of this gringo? (To be continued..)