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Abstract <p>This article presents a numerical study of the nonstationary vortex motion of gas arising over a conical body with a segmental bottom surface for various angles of attack in a transonic flow regime. The modeling is based on the viscous compressible gas model (Navier–Stokes model). For numerical simulation the conservative method of finite volumes is used. For various attack angles, the patterns of the vortex structure of the flow around a conical surface, bottom body surface, and in the near wake are presented. Data are provided on the nonstationary behavior of the flow in the area of conjugation of the conical and bottom surfaces, as well as the dependences of aerodynamic characteristics on the angle of attack. Numerical calculations are carried out on the basis of parallel algorithms and are realized on multiprocessor computing systems.</p>

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Numerical Modeling of a Transonic Flow over a Conical-Segmental Body in a Wide Range of Attack Angles

  • 期刊论文

  • 发表日期：

    2025年8月31日

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  • A. V. Babakov

摘要

Abstract

This article presents a numerical study of the nonstationary vortex motion of gas arising over a conical body with a segmental bottom surface for various angles of attack in a transonic flow regime. The modeling is based on the viscous compressible gas model (Navier–Stokes model). For numerical simulation the conservative method of finite volumes is used. For various attack angles, the patterns of the vortex structure of the flow around a conical surface, bottom body surface, and in the near wake are presented. Data are provided on the nonstationary behavior of the flow in the area of conjugation of the conical and bottom surfaces, as well as the dependences of aerodynamic characteristics on the angle of attack. Numerical calculations are carried out on the basis of parallel algorithms and are realized on multiprocessor computing systems.