Liang Yuan and Li Yuanling climbed to the fourth floor, thinking in their hearts that people of this era are really pure, and even flattering, how could they divide the old man into such a high floor as the fourth floor?

Li Yuanling knocked on the unit door on the left and shouted directly: "Aunt Liao, I am Xiaoling, come and open the door."

"Oh, didn't you, the girl, say that you will arrive in the afternoon? Why did you come in the evening?" As the unit door opened, an old woman with silver hair walked out.

Liang Yuan hid his body behind his mother like an ordinary child, and exposed his head to look at the old woman in front of him.

Liao Min saw Liang Yuan behind Li Yuanling at a glance and asked, "Xiaoling, have you brought Xiaoyuan?"

Li Yuanling turned around and took Liang Yuan out and said, "This is the teacher's wife that my mother often mentioned to you before. You want to call her grandma." Liang Yuan honestly shouted "Grandma" and said hello.

Liao Min let the two of them into the house and shouted happily: "Old Wu, come out quickly, see who is coming?"

Liang Yuan heard the sound of pulling a chair in a room, and an old man with a gorgeous hair and a kind face walked out. "You are Xiaoyuan, grandpa has wanted to know you for a long time, and he thought you would come to Shengjing to participate in the rematch of the Qingke Competition." Wu Zhonghua said to Liang Yuan with a smile on his face.

This was the first time Liang Yuan, who was born in two lives, saw Wu Zhonghua. Looking at the scientist who was internationally hailed as the "father of turbofan engines", Liang Yuan was very excited. He just greeted Wu Zhonghua with a restrained look, and then sat honestly on the sofa like an ordinary child, with his waist and back straight.

Li Yuanling looked at her son with a restrained look and said funny: "It's still a good teacher. This guy is lawless at home. I haven't seen him sitting so properly in years."

Liang Yuanxin said that the scientist in front of him is a level with Qian Xuesen. Qian could safely bring more than 100,000 rockets made of backward parts produced by the country into outer space. With nothing, this man also developed the first ramjet engine in China that is suitable for all supersonic missile propulsion systems in 1958. Unfortunately, with the implementation of the country's aerospace and aviation policy, the ramjet engine project was cut off. The sequelae was that until the 21st century, the various balls of the country's balls were overheaval than those of the same type, with short legs and slower running until the 21st century.

Wu Zhonghua, who had great vision in scientific research, advocated the use of the general energy principle of "temperature counterpart and cascade utilization" to vigorously develop gas turbines with intercool and thermal circulation systems. At that time, the rice grains were still squatting in the pit of simple circulation (Note 1) and playing mud. It was not until 1990 that the US Navy decided to develop gas turbines with intercool and thermal circulation systems under the lobbying of the British Rolls-Royce Company. Since then, he embarked on the correct path of gas turbine development.

I don’t know if the SPEG-changed gas turbine that my mother is about to lead the transformation has an inter-cold and heat cycle system. In his previous life, Mr. Wu seemed to be in a hospital at the end of this year and found out that he was not in good health. Should he take this old man to the hospital in advance? Liang Yuan had all kinds of messy thoughts in his head.

Liang Yuan took a deep breath, calmed down his agitation and said, "Grandpa Wu, my uncle and I went to Suifenhe. It's a pity that I missed the promotion competition. I heard from my mother that I am the key to your reunion with her."

Wu Zhonghua nodded to Liang Yuan and said, "I saw that the fan blades designed by your mother for you look familiar. I was curious and found out that your mother came to see your information. A few days ago, I heard your mother call over and say that you have a new invention?"

Liang Yuan avoided this kind of thing as a pioneer. He provided a superficial idea. The rest was done by Li Yuanling and Liang Jiangping. This is different from an air conditioner fan. It involves too deep knowledge and too much. If this big hat is tied to his head, it would be strange if someone doesn't get it on the TV station for exhibition.

Wu Zhonghua and Liang Yuan chatted for a while, but they admired Liang Yuan's attitude of not admitting that the Wuye electric fan was invented by himself. Wu Zhonghua thought for a while and said to Liao Min: "Old Liao, you have nothing to do now. Xiaoyuan is going to apply for the Youth Class at Dongda University. Ma Tianyuan from Dongda University is your student, go to his place to get all the exam questions for the Youth Class in recent years. When you get some review materials, you can give Xiaoyuan a tutor at home."

Then he said to Li Yuanling: "Xiaoling, your teacher's wife has packed up your room for Xiaoyuan. Recently, I will be responsible for making up for you, and your teacher's wife will be responsible for making up for Xiaoyuan."

How could Liang Yuan think that this would be the result of coming to Shengjing? If I had known it, it would be better to stay in Benxi and accompany the two loli to class.

Li Yuanling looked at Liang Yuan with a bitter face and said with a smile: "You have to take the junior class but you asked yourself. Does Xiaoyuan want to go back on his word now?"

Wu Zhonghua looked at Liang Yuan with a frustrated shook his head, laughed loudly and said to Li Yuanling: "With Xiaoyuan's pioneering thinking, it is definitely more than enough to enter the junior class. Let Lao Liao lay the foundation for him and learn for ten or eight years. In the future, Xiaoling, you will be considered a successor."

Liang Yuanxin said that if he was honestly attending Dongda University for ten or eight years, he might as well die. The ideal thing is to be a student at Dongda University. If you come and go, you will be able to be a mastermind behind all kinds of things. I just don’t know if there are any attendees in the junior class, but I would be able to go back and forth for this qualification.

Li Yuanling smiled and said, "Who knows how long his interest in engines can last? It is not a true love for our industry, but I can't persevere." After that, Li Yuanling took out the drawings of the leafless electric fan in her bag and handed them to Wu Zhonghua, and said, "Teacher, please help me see. This is what Lao Liang and I have sorted out together these days."

Wu Zhonghua took the drawing and looked carefully for a while and sighed: "I have been working on an aircraft engine for fifty years, and I have never thought that the principle of internal and external conduit can be used in this way."

Wu Zhonghua pointed to the drawing and said to Li Yuanling: "Don't look at this thing inconspicuous, you have to think about Xiaoling here."

"Our country has advocated the integration of industry, academia and research for many years, but the reality is that with the introduction of technology in recent years, some of the production parts have kept up with the international advanced level. As for learning, our university textbooks are still using the international 1950s and 1960s, not to mention research. Either develop products that have been eliminated or are about to be eliminated based on the 1950s and 1960s, or be ambitious and directly track the international advanced level."

"Xiaoyuan invented this thing is based on the existing technology and through thinking diffusion to obtain new applications of the original technology. Take the design of a gas turbine as an example. Everyone knows that the higher the turbine import temperature, the higher the unit output and efficiency, but the material level in our country is not good, so we can only find another way and improve the efficiency of the gas turbine by optimizing the impeller design and adding intercooling and heating devices."

Wu Zhonghua took a sip of water and continued: "I have visited abroad frequently over the years. The development of aero engines abroad has now been systematic. It is basically divided into three parts: pre-research engineering, core engine planning, and engine serialization. Basic research and applied research are usually uninterrupted when the specific implementation is carried out. When there is demand, it can be immediately converted to engineering development.

Our country is different. Our industrial foundation and scientific research are all studied under the Soviet Union. No one usually does basic research and applied research on engines. They often do basic research and applied research after engineering needs. They usually do not burn incense and cram in a temporary manner. Moreover, after a model is successful, the project will be completed, and everyone will be put into the south mountain and the swords and guns will be put into the warehouse. The research team is basically disbanded. Next time, there will be engineering needs and follow the steps above again."

Liang Yuanxin said that Mr. Wu was still polite. The local lord was short-sighted in the development of aviation engines. Now, the local lord was just like the later governments in political achievements. He cheated money and spent it hard, and then made something similar. Those who were promoted and those who were promoted made a fortune made a fortune. Everyone sat in a row and then went their separate ways.

You said things cannot be used? Didn’t Taizu say that we should first solve the problem of existence or not, and then consider other things. Then, after we have the things, we will go abroad to introduce advanced ones. Wouldn’t the Japanese let go?

As the professionalism of aircraft engines becomes higher and higher, the development difficulty becomes greater and greater. Finally, it is time to develop Taihang engines. Liang Yuan was finalized in Taihang in 2005 in his previous life. Unfortunately, he did not see Taihang's production-type large-scale equipment troops until Liang Yuan passed through. The reliability, maintenance, ceiling, thrust curve and start-up characteristics of Taihang engines simply did not meet the military's requirements.

When the local bumpkin wanted to introduce him from Shi to foreigners, he was swollen by Dajilijian and the Russians and rolled back in disgrace.

As a result, until 2012, the hard-working military fans were still excited to see the silver-gray chrysanthemum J-1 and 27. They were all set in Chengfei for eight years, and Shenfei couldn't even get the position of the No. 1 aircraft. They said that they had successfully developed it.

Wu Zhonghua handed the information of the leafless electric fan to Li Yuanling and said: "The reason why the teacher promoted the SBB to change the gas turbine project was to make a breakthrough in the serialization of aircraft engines through the SBBB platform. The Navy planned to upgrade the ship's power in the past few years to completely gasify it. This is a good opportunity for the current project team. If we can develop a gas turbine that meets the requirements of the Navy, it will have a significant impact on the national aviation engine research and development mechanism."

Note 1: A simple cycle means that the working medium of the gas turbine comes from the atmosphere and is finally discharged directly to the atmosphere.
Chapter completed!