What is the story of Guo Yonghuai?

Guo Yonghuai (1April 4, 909-1February 5, 968), male, Shandong Rong adult, party member, a famous mechanic, applied mathematician, aerodynamist, academician of China Academy of Sciences (namely, academician of China Academy of Sciences), the first director of the Department of Chemical Physics of the University of Science and Technology of China, and one of the founders of modern mechanics.

Guo Yonghuai has been engaged in aviation engineering research for a long time, discovered the upper critical Mach number, developed the deformed coordinate method in singular perturbation theory, that is, the internationally recognized PLK method, initiated the research on hypersonic flow, electromagnetic fluid mechanics and explosion mechanics in China, and trained excellent mechanics talents. He has assumed the business leadership of national defense scientific research and made important contributions to the development of missiles, nuclear bombs and satellites.

196865438+On February 5th, Guo Yonghuai was killed in a plane crash. From 65438 to 0999, Guo Yonghuai was awarded "Two Bombs and One Satellite Meritorious Medal", and he was the only scientist in this group who won the title of "Martyr". 2065438+In July 2008, the International Asteroid Center officially announced the asteroid number to the international community. 2 12796 was awarded as "Guo Yonghuai Star" permanently.

Extended data:

Guo Yonghuai's contribution:

Guo Yonghuai led and organized the research work on detonation mechanics, high-pressure equation of state, aerodynamics, flight mechanics, structural mechanics and experimental science of weapon environment in the development of atomic bombs and hydrogen bombs in China, and solved a series of major problems. He is the only scientist who has made great contributions to China's nuclear bomb, hydrogen bomb and satellite experiment.

Dr. Guo Yonghuai studied the continuous solution of transonic flow, a frontier problem of aerodynamics at that time, and obtained his doctorate in 1945. 1946, associate professor and professor at Cornell university, USA.

From 1946 to 1956, Guo Yonghuai is one of the three directors (namely Sears, Guo Yonghuai and Kantrowitz) of the Institute of Aeronautics at Cornell University. This 10 year is also the golden age for Guo Yonghuai to engage in scientific research.

He focused on the in-depth study of transonic theory and viscous flow, and successively published important articles such as Compressible Non-rotating Subsonic and Supersonic Mixed Flow and Upper Critical Mach Number (in cooperation with Qian Xuesen), Incompressible Viscous Fluid Flowing Around a Plate at Moderate Reynolds Number, and Weak Shock Wave Reflected by Boundary Layer along a Plate, which solved important theoretical problems in transonic flow.

At the same time, in order to solve the singularity of the boundary layer, he improved the deformation parameters and deformation coordinate methods of Poincare and Lighthill, and developed the singular perturbation theory. Therefore, Qian Xuesen published an article in AdvancesinAppliedMechanics of 1955, and named this method PLK method.

It is worth mentioning that Guo Yonghuai noticed the direction of supersonic flow in the early 1950s, and studied the boundary layer interference and dissociation effects of hypersonic shock waves. Guo Yonghuai's research achievements in aerodynamics and applied mathematics are world-famous.

Baidu Encyclopedia-Guo Yonghuai