Investigation of the Inverse Magnus Effect on a Rotating Sphere in Hypersonic Rarefied Flow

Author:

Jiang Yazhong1ORCID,Ling Yuxing2,Zhang Shikang3

Affiliation:

1. Hubei Key Laboratory of Theory and Application of Advanced Materials Mechanics, School of Science, Wuhan University of Technology, Wuhan 430070, China

2. School of Science, Wuhan University of Technology, Wuhan 430070, China

3. School of Mechanical and Electronic Engineering, Wuhan University of Technology, Wuhan 430070, China

Abstract

Explorations involving long-endurance and maneuvering flights in the upper atmosphere, as well as research on atmospheric entries of space debris or asteroids, call for a full understanding of hypersonic rarefied flows. The inverse Magnus effect occurs in the hypersonic rarefied flow past a rotating sphere, but the aerodynamic behavior is contrary to the Magnus effect in the continuum flow regime. In this article, a series of such flows are numerically studied using the direct simulation Monte Carlo (DSMC) method. By analyzing the flow fields, as well as the distributions of pressure and shear stress on the sphere, the formation of the inverse Magnus force can be attributed to the tangential momentum transfer between incident gas molecules and the windward surface. The variation laws of aerodynamic parameters with the rotation rate are presented and discussed.

Funder

National Natural Science Foundation of China

National Innovation and Entrepreneurship Training Program for College Students

Publisher

MDPI AG

Subject

Fluid Flow and Transfer Processes,Computer Science Applications,Process Chemistry and Technology,General Engineering,Instrumentation,General Materials Science

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