From June 65438 to June 0937, Wilder Arnold, a graduate student in the Department of Meteorology of California Institute of Technology, brought a windfall to the Rockets. Arnold was deeply moved by Malina's speech on campus and promised to raise $65,438+0,000 for the rocket project.
A few days later, he unexpectedly brought the first money-a stack of bills with a face value of 1 US dollar, 5 US dollars wrapped in old newspapers, and a * * * is 1000 US dollars. This 1000 USD is enough to cover the cost of manufacturing rocket engines.
With the injection of new funds, the project began to accelerate. Just then, Qian Xuesen joined in. Naturally, he became a resident mathematician in the group. 1on may 29th, 937, Qian Xuesen finished an unforgettable report: "the influence of nozzle divergence angle change on rocket engine propulsion;
Ideal working cycle of rocket engine: ideal efficiency and ideal propulsion; Calculation of combustion chamber temperature by discrete method. Qian Xuesen's report, together with a series of analysis and experimental reports on rocket engine, liquid fuel, rocket plane, rocket shell, etc., was included in a collection of essays dubbed "Bible", which formed the theoretical basis of rocket team research.
1937, California Institute of Technology officially recognized the status of this rocket team and included it in the Guggenheim Aviation Laboratory, a rocket research project of California Institute of Technology.
Discovering Carmen-Money Pressure Correction Formula
For Qian Xuesen, 1939 was also an exciting year. In June, he received his doctorate. In autumn, he became an aviation scientist at California Institute of Technology, and continued to cooperate with von Carmen in aerodynamic research. His cooperation with Marina found a solution to the problem of solid fuel.
In September this year, Qian Xuesen's paper "Two-dimensional Subsonic Flow of Compressible Fluid" was published in the Journal of Aviation Science. This paper is destined to become a classic, and it represents his most important scientific work at California Institute of Technology. This paper leads to the famous "Carmen-Qian pressure correction formula", which will be used by engineers all over the world to design high-speed aircraft in the next few decades.
During the period of 1940, the rocket group made important achievements on rocket fuel. At this time, the battlefields in Europe became more and more fierce, and the Germans bombarded undefended cities, such as the Netherlands and France. The United States began its first national conscription. In May, President Roosevelt requested an annual output of 50,000 aircraft. The government began to gather scientists on a large scale.
194165438+On the morning of February 7, the Japanese navy suddenly attacked the airports of the US navy in Hawaii and other places, and the Pacific War broke out, and the United States was involved in World War II. Convinced of Qian Xuesen's value, Von Carmen arranged for him to obtain a security license issued by the US government to engage in confidential military research projects.
Reference to the above content: Science Network-Qian Xuesen: Being a Powerful Country for Life
Reference to the above content: China Writers Network (sponsored by Chinese Writers Association)-California Institute of Technology "The Death Squad"