Demons, demons! Everyone tried to find the answer on Director Zhang's face, but found that he was also embarrassed.

Fan Wuxian smiled and said to everyone, "It's not my fault that I'm young, but to say that because I'm young, I can't make achievements in science, it's a deception!" Once again, I solemnly introduce myself, my name is Fan Wuxi, I am an exemplary Fan, no disease, just no problem! If there is nothing wrong with a person, he is almost a saint! ”

Hearing Fan Wuxian stir up like this, the people sitting below all laughed, I didn't expect this kid to be very interesting, but a high-end weapon like a blizzard, how could it not be made by a child? If a three-year-old can do this, then how should we, the old guys who have studied cutting-edge weapons all our lives, deal with ourselves?

Director Zhang introduced Fan Wuxian on the side, "This is Sun Lao, an expert in fluid mechanics, this is Bo Lao, an expert in aerodynamics, and this is Wang Lao, a rocket expert. ”

"I've admired your names for a long time, it's really thunderous." Fan Wuxian said sincerely.

It's not that he pretends to be a gesture, but the names of these people, in the later generations, he sounded that all of them were golden, and he never thought that he would answer these people's questions.

Sun Lao, an expert in fluid mechanics, frowned and looked at the smiling Fan Wuxian, and asked Director Zhang with some tears and laughter, "Xiao Zhang, are you sure that this three-year-old child is the designer of the blizzard?" Don't bluff me, I don't have a very good heart! ”

Director Zhang nodded, speechless.

Fan Wuxian corrected seriously, "First of all, let me state that I am no longer a three-year-old child, I am three and a half years old. ”

Sun Lao pursed his lips and said, "You kid doesn't speak authentically, you run the train with your mouth full!" Our name has never appeared in open newspapers and magazines, how can you have heard of our name, and when you hear it, you are not an honest child! ”

Everyone nodded in agreement, not because they were bullying the child, but because they wanted to see if the child in front of them really had the ability to design a blizzard, which was the most important thing.

"Elder Sun is really - you take it seriously - " Fan Wuxian said with a smile, "But seriously, although I have never met you, or even heard of your name, in my heart, I have been friends with you for a long time!" ”

Seeing that everyone looked thoughtful or pouting in disbelief, Fan Wuxi continued, "I am also a national science and technology person, why should I divide the order when I hear it?" If you are not full of blood to repay the country, how can you return to the same party? ”

"Well said, I'm kind of convinced that you're the designer of the blizzard now." Sun Lao looked at Fan Wuxian with a surprised face, and applauded.

"Now that we've reached a preliminary consensus, can we get started?" Director Zhang heard the opportunity.

Everyone nodded, and Fan Wuxian saw that everyone was embarrassed to ask the first question, so he took the initiative to say, "Anyway, no matter which senior asks questions, they all want me to explain, so why don't I explain the principle of cavitation weapons first." ”

Several leading experts nodded in agreement, so Fan Wuxian sorted out his thoughts and began his first public speech in his life.

"If you want to talk about the blizzard torpedo, you have to mention the supercavitation phenomenon." Fan Wuxian said to everyone.

The pressure decreases when the liquid moves rapidly around the object, and as the velocity increases, when the liquid pressure is equal to the water vapor pressure, the liquid changes from the aqueous phase to the gas phase, forming water vapor. Cavitation distorts the water flow, which can result in the loss of efficiency of pumps, turbine hydrofoils, and thrusters, and can also lead to the emergence of strong shock waves and corrosion of metal surfaces. Ship designers often have to deal with troublesome cavitation in an attempt to avoid cavitation, such as designing the hull to be streamlined.

However, the trouble caused by this cavitation plays an important role in overcoming the sticky resistance caused by the friction with the water.

"The resistance of an object in water is about a thousand times that of air due to the sticky resistance between the water and the moving object in the water." "But we can use the nasty cavitation bubble to form a renewable gas envelope around the underwater object, so that the fluid soaks the surface of the object to the minimum, so as to greatly reduce the viscous resistance, this low-density bubble is supercavitation." The length of the cavitation is related to the speed of the object's motion, and the object is able to move forward with minimal drag inside the long bubble it has created. This is the design principle of the Buran torpedo. ”

Sun Lao asked, "The vacuole phenomenon is easy to demonstrate, but how many feasible surnames are there to create supervacuoles by themselves?" The velocity of the torpedo in the water varies, what is the initial velocity to obtain the ideal supercavitation? ”

"This question depends on my blizzard blueprints." Fan Wuxi pointed to the blizzard design sketch hanging on the wall and said, "The blizzard torpedo is to use the rocket engine to generate a large number of bubble holes in the torpedo head, so that the torpedo is completely surrounded by holes, and the resistance of the water is greatly reduced, so as to achieve extremely high speed." In other words, the thunder body is not in direct contact with the water, and the resistance of the natural water is minimal. The obstacle to the high-speed navigation of the torpedo was thus skillfully defused. And his initial velocity should have reached more than 100 knots! The most critical problem is the component cavitation generator that produces the supercavitation phenomenon. However, where to produce bubbles of density, scale, and pressure is a problem that the seniors here need to solve. ”

"How is the initial velocity data obtained? Is there any rationale? Someone asked.

Fan Wuxian shrugged his shoulders and replied, "If we have to find a theoretical basis for everything, I'm afraid we are still living in a primitive society now, and I can only guarantee that if you refer to the data I provided when you are experimenting, your predecessors will not waste their efforts." ”

Next, Fan Wuxian continued to answer questions about the design of the Blizzard torpedo, such as why there are eight nozzles of small rocket engines around the main rocket engine on the central shaft at the rear of the torpedo, what is the function of the eight folding brake arms protruding from the side of the torpedo shell, and how to ensure that the high-speed moving Blizzard torpedo can maneuver in the water, etc.

After a commentary, everyone was suddenly enlightened, but Fan Wuxian couldn't support it a little, God knows where these old experts came from so many questions, it's just 100,000 questions!

Anyway, this matter can be dealt with, and whether the blizzard can be done depends on the ability of these old experts.

Fan Wuxian personally has a lot of confidence in them.