Numerical simulation of liquid jet impact on a rigid wall

11th International Conference on "Mesh methods for boundary-value problems and applications"

Aganin, A.A.^1 ; Guseva, T.S.^1

Institute of Mechanics and Engineering, Kazan Science Center, Russian Academy of Sciences, Kazan

420111, Russia^1

关键词: Adaptive grids;    Cylindrical liquids;    Equations of gas dynamics;    Gas-liquid interface;    Liquid flow;    Liquid wedge;    Numerical solution;    Numerical techniques;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/158/1/012004/pdf
DOI  :  10.1088/1757-899X/158/1/012004

来源: IOP

【 摘 要 】

Basic points of a numerical technique for computing high-speed liquid jet impact on a rigid wall are presented. In the technique the flows of the liquid and the surrounding gas are governed by the equations of gas dynamics in the density, velocity, and pressure, which are integrated by the CIP-CUP method on dynamically adaptive grids without explicitly tracking the gas-liquid interface. The efficiency of the technique is demonstrated by the results of computing the problems of impact of the liquid cone and the liquid wedge on a wall in the mode with the shockwave touching the wall by its edge. Numerical solutions of these problems are compared with the analytical solution of the problem of impact of the plane liquid flow on a wall. Applicability of the technique to the problems of the high-speed liquid jet impact on a wall is illustrated by the results of computing a problem of impact of a cylindrical liquid jet with the hemispherical end on a wall covered by a layer of the same liquid.