Abstract
The vortex method is advantageous to high-Reynolds number flows and its algorithm is relatively simple. However, the number of vortices increases with time and the calculation load of velocties by the Biot-Savart law becomes very large. The authors propesed Lattice Vortex Method (LVM) to accelerate the calculation and to perform numerical analysis stably. The vorticity is not always conserved in the calculation by the conventional finite difference method and the conservation of vorticity is one of the crucial points in numerical flow analysis. In our lattice vortex method (LVM), the vorticity and the density are conserved because those are moved and distributed on cells by Lagrangian scheme. In this paper, lattice cortex method was extended for three-dimensional flow analysis, the vorticities were expressed by vortex rings arranged on the cell sides of the grid to avoid the treatment on the end of vortex lines and Lagrangian scheme was used to preserve the mass and vorticities. The propagation of internal waves was grasped fairly good in three-dimensional stratified flow by LVM.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
