Impact of numerical method on a side jets formation in a round jet

22nd Fluid Mechanics Conference

物理学;力学

Wawrzak, K.^1 ; Boguslawski, A.^1

Czestochowa University of Technology, Faculty of Mechanical Engineering and Computer Science, Al. Armii Krajowej 21, Czestochowa

42-201, Poland^1

关键词: Cartesian mesh;    Cartesians;    Cylindrical coordinates;    High-order;    Large Eddy simulation methods;    Localisation;    Mesh nodes;    Numerical approaches;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/760/1/012040/pdf
DOI  :  10.1088/1742-6596/760/1/012040

学科分类：力学，机械学

来源: IOP

【 摘 要 】

Numerical analysis of a formation of side jets in an externally modulated round jet is presented. The research is performed applying Large Eddy Simulation method and high-order codes based on Cartesian and cylindrical coordinates. The main attention is paid to an impact of numerical approach on the formation of the side jets, their number and localisation. The results obtained suggest that on Cartesian meshes the number and directions of the side jets are dependent on the distribution of the mesh nodes.