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Slightly Perturbed Interaction of Plane Counter-Moving Jets of Inviscid Incompressible Fluid

机译:粘性不可压缩流体的平面反向射流的微扰相互作用

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摘要

The unsteady collisions of plane counter-moving inviscid incompressible jets outflowing from channels are considered. The unsteady pattern of the flow is caused by a variation of pressure at the infinitely remote points of the channels. It is assumed that the velocity of the perturbed flow is small compared to the velocity of the steady flow. The Gurevich-Haskind method is used to solve the problem. A mixed boundary value problem for the complex potential of the perturbed flow is formulated and solved. For the case of straight channels and harmonic laws of pressure variation at the infinitely remote points, the equations for the deviation of free boundaries from their steady-state positions are numerically studied.
机译:考虑了从通道流出的平面反向运动的无粘性不可压缩射流的非稳态碰撞。流量的不稳定模式是由通道无限远处的压力变化引起的。假定与稳定流相比,扰动流的速度小。 Gurevich-Haskind方法用于解决该问题。提出并解决了扰动流复势的混合边值问题。对于直线通道和无限远点处压力变化的谐波定律的情况,对自由边界与其稳态位置的偏差方程进行了数值研究。

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