In fact, I don't know where should the article post!! The wind tunnel is basic technology, Plane, Missile, Space Craft and many other vehicle need tunnel to test and verify their aerodynamic shape. China have complete and advanced wind tunnel system, we don't need go out to pay money for using foreign wind tunnel and spend much time to queue up for it, and the foreign will not let you catch their best wind tunnel.
But, the last part of article should be reflected by us.
Our country into a 9 times the speed of sound the world’s most advanced wind tunnel performance
Figure: the United States in the wind tunnel test X-51A hypersonic aircraft engine, the highest wind speed is 7.5 times the speed of sound.
（Can't find pic of china, use the similar pic of usa)
the world’s longest next to the shock tunnel, a special organizational life
into the Qian engineering science experiment base – with the party branch of the National Natural Science Foundation of Mathematics Division of Physical Sciences
the reporter Luo Hui
into the grass-roots party branches reporter Notes
One day in the month of April, the former director of the National Natural Science Foundation of China, mathematical and physical science Ministry of the party branch oldest party member Chen Jiaer early in the Gathering Place. 78-year-old, he said he was looking forward on this branch of activity.
from the collection time of 10 minutes, the youngest branch of the party members Zhangpan Feng hurried off the computer. His office table, on the ground are tall pile up this year’s Science Foundation project application. These days is the busiest time of their year, the Mathematics Division of Physical Sciences has more than 10,000 applications need to handle.
this day, the destination of the branch of the 19 party members and three other colleagues is the scientific and experimental base of the Chinese Academy of Mechanics, Qian works. Executive Deputy Director of the Mathematics Division of Physical Sciences, Party branch secretary of drain Pei Wen said this trip is a trip on a single charge. The busiest of the most tired of the fighting capacity of the team to strengthen the. To research first-line sentiment Qian spirit, to understand the needs of researchers, the back can be more targeted work./P>
1 hour after Yanqi Economic Development Zone, Huairou District, a long strip of park Avenue, a gray building, Chen Jiaer and an old old hands are clasped. The 84-year-old man is your worked in the mechanics of the first founding director Mr. Qian Xuesen around the Chinese Academy of Sciences Yu Hongru Mr.. Side lying steel body, it is according to Mr. Yu detonation driven approach, the further development of a series of shock tunnel innovative technology, the successful development of the international’s first reusable now superb sound velocity flight conditions very large shock tunnel, the overall performance level international leader. Mechanics, Chinese Academy of Sciences of the shock tunnel series, it was named “JF12 complex currently hypersonic flight conditions of the shock tunnel.
the root half-human, tall, metal texture, of coarse, fine, every period of change a color long tube, in the eyes of international peers is a “Hyper-Dragon” (super dragon) . Shock tunnel of the world’s longest to date, and often they visit to Beijing “attractions”, some people read the request: “Can you take a look at.”
prelude: wind tunnel “landscape”
spring afternoon sun from the wind tunnel where air and space laboratory west side of the door shone, to cast a simple reinforced steel frame halo. Mr. Yu’s “successor”, the director of the Institute of Mechanics, high temperature gas dynamics State Key Laboratory of Jiang Zonglin Fellow, accompanied by commentary, we walked and Mechanics of the party members exchange to explore. The reporter later found 265 meters long way, actually half an hour away.
wind tunnel exactly what exotic “landscape”? The reporter eventually did not use the eyes to understand, but how many understand.
This is Mr. Yu of two generations of scientists set 50 years of accumulation, inventive, with distinct characteristics of major equipment, the new works is different from any existing wind tunnel in the world.
in order to make it clear that it highlights, the need to explain first some background:
First, the wind tunnel on behalf of a national level of basic research in the aerospace, it is the aircraft “cradle” of an aircraft engine, aerodynamic layout, not in the wind tunnel blowing several thousand times, dare not to heaven. Mr. Yu is their wind tunnel is by far the world’s most advanced performance hypersonic aerodynamic test device.
Second, a velocity, called the “Mach (Ma) the number of quantifiers is essential. Mach 1 is the Mach (speed of sound), weather conditions, about 340 m/sec. General civil aircraft speed subsonic Ma 0.8 below. Mr. Yu is their wind tunnel to reproduce in the 25-40 km altitude above the Ma5.0 hypersonic flight conditions.
the major national research and equipment development project team responsible person Jiangzong Lin has always taken great pains to for Reporters science. JF12 wind tunnel of 265 meters ‘length’ so that it can provide a longer experimental time, the experimental hypersonic engines need time requires at least 60-70 milliseconds, we have to be 100 ms, the foreign wind tunnel about up to 2.5 m for 30 ms. the nozzle diameter, chamber diameter of 3.5 meters, significantly better than similar foreign wind tunnel. the JF12 wind tunnel in the ‘wind’, the highest speed up to Ma, the temperature up to 3000 degrees Celsius. Ma 9 means that the flight time from Beijing to New York can be reduced from the current 14 hours to two hours. “
hypersonic scramjet aircraft R & D is an international problem. Ma, 9, for aircraft engine ignition, like lit the tornado a match has been described, but also to ensure that it continued to burn. Jiangzong Lin, JF12 wind tunnel can reproduce the “state of the tornado. This created the conditions for our engine research and development.
JF12 wind tunnel how much was spent? Fan Jing, director of the Institute of Mechanics, said: “46 million yuan.”
drain Pei Wen emotion: “There is no innovative ideas, 4 billion might not engage in out.” It is understood that the JF12 wind tunnel is not only built when inexpensive, operating costs are much lower than foreign wind tunnel.
drain Pei Wen said, “Landscapes” Mr. Qian Xuesen do not believe foreigners, be bold and innovative spirit of the reality embodied. This influence of the spirit of the old group of people, Mr. Yu and other scientists adhering to the spirit of Mr. Qian, brought out Jiangzong Lin researcher and a group of people. Today, this spirit is constantly passing.
the gave lectures: Mr. Qian Xuesen old age what worries
Qian engineering science experiment base yard is now a big construction site, superb laboratory, ultra burning laboratory, Combustion Laboratory, still under construction in the plasma laboratories green Tarpaulins block the line of sight. Ear or sounded the noise of the saws creak, but these did not affect people’s mood.
In addition to wind tunnel, we are also witnessing a high-speed train model in an instant to be accelerated to more than 200 km, and then a smooth stop.
Subsequently, gave lectures in the wind tunnel next to the Conference Room. Speaker Yu Hongru.
slide is the old man to do, simple dark blue template, read the headline: understand the problems the Qian director of the old age worries. His seat behind the wall, the words “realistic demand” four characters.
Yu Hongru eyes, Qian will always be the director of the Institute of Mechanics. Because the formation of mechanical Qian to do after returning to the first issue. Built by the beginning of 1956, Qian put forward “God, into the earth, the sea,” the blueprint, which is still the mechanics of today’s development direction.
“we all know now ‘Qian of the question’, that his later concerns, but I think everyone’s understanding is not comprehensive. In fact, his real concern from both
Yu Hongru said: “Another concern is that of money director: ‘China’s science and technology have important innovation’?” he said, Qian 1995 Wang Shouyun six comrades letter has been mentioned in the 1960s, prior to the “quark” theory put forward the theory of “stratum”, synthesized the first artificial insulin, successful implementation of a hydrogen bomb detonated unique technology, but today? China’s scientific and technical personnel important innovation? I think that foreigners currently too superstitious, too timid, if not innovation, we will become incompetent! “read Qian letter in these words, the tone of dignified Yu Hongru.
He believes that Qian these concerns have not been widely reported.
Yu Hongru at the same time pointed out, “Qian of the question,” is mentioned, people usually think, Qian said that the cultivation of outstanding talent. “It’s not wrong, but what he said is not an ordinary personnel training, but the cultivation of technological innovation.”
In his view, the core of these two concerns are all about innovation.
So, what is innovation? Yu Hongru said, “innovation” can be understood as “create”, that is, the first things that unprecedented; also be understood as “innovation”, namely, the progressive improvement. According to his understanding, Qian within the meaning of “innovation” is to create rather than innovation. He quoted Qian: “is not a true innovation, not the courage to others not studied the scientific frontier, and not someone else already said what we know, did not say something, we do not know
Yu Hongru how to deal with the “creation” and “innovation”, related to our ability to obtain real innovation. In his view, as opposed to “create” and “innovation” become easier, the risk is small, easy to manage, and widely welcomed by the front-line researchers and management staff. However, if the same activities “create” method of management, will make it difficult situation. “Innovation is very important, most people do innovation, however, can not let innovation instead of to create, nor does it eliminated to create the innovation.”
his own explanation: he had a new research ideas to apply for research funding, but a look at the project application form, found: “simply can not fill – the exploratory work hangs in the balance, how can I be dead what specific methods to accomplish each research stage how much money?” Later, the Chinese Academy of Sciences has decided to finance his 2 million yuan, only to sign an agreement, “The problem is, I am OK, young people you?”
“I have told you Fund Committee said that this matter is to you good research, how can we better support the creation of research management departments can not use the tube and innovative ways to pipe to create. “Yu Hongru outspoken.
sentiment: the hard work is more conducive to “create” rather than just “innovation” of the soil
the PPT can not give me a copy of a? Yu Hongru speaking party class “classroom” has been very quiet. To a discussion session, a warm atmosphere. This request is Chen Jiaer, another of his identity: the former president of Peking University. “Mr. Yu’s speech, thought-provoking and I want to Peking University’s new team learn from Beijing University to be unique, to develop technological innovation, one thousand school at university side of the situation to change.”
Chen Jiaer said, why will be the 1000 school side of the root causes of evaluation mechanisms. Now the university rankings, most of the emphasis on the apparent number of international search papers (SCI or EI) and journal impact factors (IF), quantitative indicators. In fact, our total amount of SCI, EI has been ranked in the world, but the actual innovation capability compared with the international advanced level there is still a wide gap. “Doctoral the two articles can not graduate, and made them what to send the article to what to do, became foreign academics look down on the Paper Machine (Article machine) this is greatly harmful.” The same side Qian The 78-year-old had a bit agitated.
He believes that in the evaluation of researchers or research units, should see their innovative ideas there, how to drive the development of related disciplines, what to promote to meet the needs of the community; to see their research culture the number of young people; depends on how with the cooperation of the relevant units, what contribution to the development of cooperative units.
then Chen Jiaer
drain Pei Wen as saying: “To improve the ability to create, I think it needs the efforts of three indispensable: one is the scientists themselves how to do it; a how support of the management department; third evaluation system how to keep pace. “
drain Pei Wen said, adhering to the Science Foundation is relying on experts, promoting democracy, merit-based support, a fair and reasonable” principle. Take into account the process of application for the project, some new ideas is not easy to be the judges to accept the Fund Committee has also established a non-consensus items support more exploratory, very risky and innovative research to obtain a certain effect . For example, the researcher at the Purple Mountain Observatory, Chinese Academy of Sciences often into the start of the project review does not pass, given some support by the Fund Committee in accordance with the non-consensus items, then get better and better, to find possible evidence of dark matter particles annihilate also the 2008 World Year of Physics major field of study progress.
Ji Pei-wen says that in addition to funding for the project, the Science Foundation is also attached great importance to the funding. Such as for Creative Research Groups Science Foundation is the selection of the best-funded team of the common goal of innovation research directions and issues decided by the scientists themselves, so that they can have a relaxed environment, painstaking research.
Chinese Academy of Mechanics, director of Fan Jing chimed in, do play a good role in innovative research groups to encourage innovation and personnel training. The JF12 complex is now hypersonic flight conditions of shock wind tunnel project has gone through ups and downs in difficult times, the funding of innovative research groups “to deepen the study and validation of critical thinking played a positive role.
drain Pei Wen concluded that, on paper come says, must know this practice is essential. “Today, the world’s longest next to the shock tunnel, we had a special organizational life, learned a lot. First, we learned the spirit of Mr. Qian, Mr. Yu, as well as the mechanics of the new generation of scientists in the spirit of innovation; second received their tasks, how to better support innovation, and creativity to improve the evaluation system; is to increase our sense of responsibility and mission in the future to better support innovation, personnel training, further perfect the system of Chinese characteristics. Science Foundation; further clarify the Communists of the new period of work in the field of science and technology management, better play the direction and content of the progressiveness of Party members and the pioneering role. “
