Cai Ruixian, male, Han nationality, is a native of Shantou and Taishan, Guangdong Province. He was born in 1934 and graduated from the Communications University in 1956.
Cai Ruixian founded the comparison method of analyzing complicated total energy system, thus summarizing a dozen of concise qualitative rules for various total energy systems. With regard to the theory of impeller machinery, Cai developed the central streamline method. Cai was also the first to collectively find out the influence on unstable performance of axial-flow compressor by circular belt in practical unit, significantly contributing to the debugging of many models of units. In recent years, Cai has deduced a series of algebra analytical solutions in subjects of engineering thermal physics, such as analytical solutions of non-steady belt shock compressible flow and nonlinear thermal conduction.
Cai Ruixian is engineering thermal physicist and was a member of 8th and 9th CPPCC National Committees.