Hysteresis induced by interaction of oblique hydraulic jumps on shallow water

IF 0.5 4区工程技术 Q4 ENGINEERING, AEROSPACE

Thermophysics and Aeromechanics Pub Date : 2024-03-20 DOI:10.1134/S0869864323060100

A. N. Kudryavtsev, U. V. Mikhailova

引用次数: 0

Abstract

Reflections of hydraulic jumps on shallow water are studied. Theoretical criteria of the transition between the regular and Mach reflections are derived, and it is shown that there is a domain of angles of incidence where both types of reflection are possible. Numerical simulations reveal a hysteresis of this transition, which is consistent with theoretical predictions. It is shown that the hysteresis can be obtained by smoothly varying either the angle of the wedge generating the hydraulic jump or the freestream Froude number.

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浅水区斜向水力跳跃相互作用引起的滞后现象

摘要研究了水力跳动在浅水上的反射。推导了规则反射和马赫反射之间过渡的理论标准，并证明存在一个两种反射都可能发生的入射角域。数值模拟显示这种过渡存在滞后现象，这与理论预测一致。结果表明，可以通过平滑改变产生水力跃迁的楔角或自由流的弗劳德数来获得这种滞后。

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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来源期刊

Thermophysics and Aeromechanics THERMODYNAMICS-MECHANICS

CiteScore

0.90

自引率

40.00%

发文量

审稿时长

>12 weeks

期刊介绍： The journal Thermophysics and Aeromechanics publishes original reports, reviews, and discussions on the following topics: hydrogasdynamics, heat and mass transfer, turbulence, means and methods of aero- and thermophysical experiment, physics of low-temperature plasma, and physical and technical problems of energetics. These topics are the prior fields of investigation at the Institute of Thermophysics and the Institute of Theoretical and Applied Mechanics of the Siberian Branch of the Russian Academy of Sciences (SB RAS), which are the founders of the journal along with SB RAS. This publication promotes an exchange of information between the researchers of Russia and the international scientific community.