STRAIGHTENING EXPANSIONS OF GAS FROM VORTEX WITH LINEAR VELOCITY FIELD

被引:0
|
作者
Yulmukhametova, Yu. V. [1 ,2 ]
机构
[1] Ufa State Aviat Tech Univ, Lab Grp Anal Math Models Nat Sci Engn & Technol, 12 Karl Marx Str, Ufa 450000, Russia
[2] RAS, Inst Mech, Lab Differential Equat Mech, Ufa 450054, Russia
来源
UFA MATHEMATICAL JOURNAL | 2012年 / 4卷 / 04期
关键词
gas dynamics; submodel; approximate solution; radial expansion;
D O I
暂无
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
In this paper we consider a submodel of the gas with a linear velocity field. It is described by a system of nonlinear differential equations with initial data. Several first integrals of the system are obtained. As a result the order of the system is reduced. An approximate solution of differential equations of the submodel is obtained for special initial data of the problem. Such a solution corresponds to world lines describing the radial expansion of the gas particles from the vortex. Trajectories of motion of gas particles are constructed.
引用
收藏
页码:157 / 173
页数:17
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