粘性连续体中流过物体的最佳形式的解析确定

IF 1.1 4区物理与天体物理 Q4 PHYSICS, APPLIED

Technical Physics Pub Date : 2024-09-28 DOI:10.1134/S1063784224700671

S. O. Gladkov, N. S. Nagibin

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引用次数: 0

摘要

借助普朗特方程和变分微积分的方法，我们得到了一些方程，这些方程可以解析地确定粘性流体经过物体时阻力最小的轮廓类型。从解析的角度严格证明了良好流线体切割的纵向截面随雷诺数的不同可以有不同的形式。对所得方程进行了数值分析和图解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

On the Analytical Determination of the Best Form of Flows Past Bodies in a Viscous Continuum

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On the Analytical Determination of the Best Form of Flows Past Bodies in a Viscous Continuum

With the help of the Prandtl equation and using the methods of the variational calculus, we have obtained equations that make it possible to analytically determine the type of contour for which the drag force in a viscous flow past a body becomes the smallest. It is rigorously proved analytically that the longitudinal cross section of a cut of well-streamlined bodies can have different forms depending on the Reynolds number. The equations found are analyzed numerically and illustrated graphically.

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来源期刊

Technical Physics 物理-物理：应用

CiteScore

1.30

自引率

14.30%

发文量

139

审稿时长

3-6 weeks

期刊介绍： Technical Physics is a journal that contains practical information on all aspects of applied physics, especially instrumentation and measurement techniques. Particular emphasis is put on plasma physics and related fields such as studies of charged particles in electromagnetic fields, synchrotron radiation, electron and ion beams, gas lasers and discharges. Other journal topics are the properties of condensed matter, including semiconductors, superconductors, gases, liquids, and different materials.