二维拟定常磁流体绕凸拐角的流动

doi:10.6040/j.issn.1671-9352.0.2023.074

摘要/Abstract

摘要： 本文主要研究了二维等熵无旋拟定常Noble-Abel气体磁流体绕凸拐角的流动。首先,给出了Noble-Abel气体磁流体中心简单波主部的性质。其次,通过构造凸拐角处的中心简单波,证明了超声速来流通过中心稀疏波或者中心压缩波绕过凸拐角, 并分别给出了到达真空和声速的临界角。

关键词: Noble-Abel气体, 凸拐角, 中心简单波

Abstract: In this paper, we study the 2-D isentropic irrotational pseudo-steady supersonic flow around a convex corner for Noble-Abel gas magnetofluid. First, the properties of principal part of the centered simple wave for Noble-Abel gas magnetofluid are given. Second, by constructing the centered simple wave near convex corner, it is proved that the supersonic incoming flow can turn the convex corner by a centered rarefaction wave or a centered compression wave. Additionally, the critical angles corresponding to the arriving of vacuum and sonic state are obtained respectively.

Key words: Noble-Abel gas, convex corner, centered simple wave

中图分类号:

O175.27

李星,由守科. 二维拟定常磁流体绕凸拐角的流动[J]. 《山东大学学报(理学版)》, 2024, 59(12): 87-95.

LI Xing, YOU Shouke. Flow of 2-D pseudo-steady magnetofluid around a convex corner[J]. JOURNAL OF SHANDONG UNIVERSITY(NATURAL SCIENCE), 2024, 59(12): 87-95.

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