Current Status and Applications of Bluff Body Aerodynamics Theorem

Abstract

With the development of aerospace science and technology, the aerodynamic characteristics of spacecraft has become an important research topic. The aerodynamic configuration of reentry spacecraft represented by the bluff body theory has been widely used in various spacecraft. A large number of studies show that it has good effects in reducing aerodynamic heating caused by turbulence and improving the reentry stability of spacecraft. At the same time, the research of aerodynamic characteristics can not only solve the problems in many engineering fields, but also promote the development of many other disciplines, such as fluid mechanics. Aerodynamic characteristics play a more and more important role in the aerospace field, not only providing ideas for spacecraft design and application analysis, but also providing solutions for spacecraft in flight. The research topic of this paper is to summarize and review the research and exploration of this aerodynamic configuration at home and abroad. Through the application of bluff body in different functions of spacecraft and the specific analysis of historical accidents, this paper summarizes the importance of bluff body theory to the safety of spacecraft during reentry.