期刊
PROGRESS IN COMPUTATIONAL FLUID DYNAMICS
卷 18, 期 3, 页码 137-149出版社
INDERSCIENCE ENTERPRISES LTD
DOI: 10.1504/PCFD.2018.091703
关键词
jet in crossflow; local mesh refinement; LMR; large-eddy simulation; LES
资金
- BP/The Gulf of Mexico Research Initiative: Gulf Integrated Spill Response (GISR) Consortium
A numerical simulation of a turbulent round jet issuing into a laminar crossflow is performed using the method of large-eddy simulation (LES). In order to employ LES efficiently for such multi-scale problems, the code utilises a local mesh refinement (LMR) algorithm and employs a multigrid method to solve the incompressible Navier-Stokes equations. The accuracy of several LMR implementations is assessed for the Taylor-Green vortex problem. Second order accuracy of the LES-LMR code is achieved when ghost cell pressures are computed through an approximate projection method and velocities are computed using quadratic interpolation. Three different LMR strategies for a jet in crossflow are then setup in order to assess the predictive capabilities of the method. The simulations are validated against similar LES and experimental data and excellent agreement with experimental data is found for medium and fine LMR grids, while the coarse LMR grid suffers from over-prediction of the jet centreline speed.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据