轴对称与非轴对称物体牛顿问题解的比较

IF 0.6 4区工程技术 Q4 MECHANICS

Fluid Dynamics Pub Date : 2025-07-20 DOI:10.1134/S0015462825600993

S. A. Takovitskii

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引用次数: 0

摘要

研究了车身截短后前缘或前缘的形成对气动阻力的影响。在前一种情况下，物体的横截面形状（圆形、椭圆形或菱形）不会改变，而面积由依赖于纵坐标的幂律决定。在后一种情况下，截面形状从初始截面中的直线段变为末端截面中的圆形。这样构造的体具有相同的长度和基部面积。体阻力用牛顿公式计算压力系数。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Comparison of the Solutions of the Newton Problem for Axisymmetric and Nonaxisymmetric Bodies

The effect of body truncation with the formation of a leading face or an edge on the aerodynamic drag is investigated. In the former case the cross-sectional shape of the body (circular, elliptic, or diamond) does not change, while the area is determined by the power-law dependence on the longitudinal coordinate. In the latter case, the cross-sectional shape changes from a rectilinear segment in the initial section to a circle in the end section. The bodies thus constructed have the same length and the base area. The body drag is calculated using the Newton formula for the pressure coefficient.

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来源期刊

Fluid Dynamics MECHANICS-PHYSICS, FLUIDS & PLASMAS

CiteScore

1.30

自引率

22.20%

发文量

审稿时长

6-12 weeks

期刊介绍： Fluid Dynamics is an international peer reviewed journal that publishes theoretical, computational, and experimental research on aeromechanics, hydrodynamics, plasma dynamics, underground hydrodynamics, and biomechanics of continuous media. Special attention is given to new trends developing at the leading edge of science, such as theory and application of multi-phase flows, chemically reactive flows, liquid and gas flows in electromagnetic fields, new hydrodynamical methods of increasing oil output, new approaches to the description of turbulent flows, etc.