首页> 外文会议>International Conference PhysicA.SPb >Numerical aspects of wall-distance computation for turbulence modeling
【24h】

Numerical aspects of wall-distance computation for turbulence modeling

机译:湍流建模壁距离计算的数值方面

获取原文

摘要

Numerical aspects of the PDE-based approaches to computing the distance-function involved in many RANS models are discussed focusing on solving Eikonal equation written in advection-diffusion form. This approach is implemented and tested within the in-house structured multi-block general purpose CFD code. A technique which allows considerable increasing the robustness of the numerical procedure is proposed and tested on a set of generic 2D geometries (NACA4412 and 30P30N 3-element airfoils, backward-facing step) and more complex 3D configurations (Stanford diffuser and Common Research Model of commercial aircraft). It is shown that this technique permits to avoid convergence problems typically observed for the Eikonal-type equation and to compute the distance-function for all of the tested configurations. The results obtained show high efficiency of the technique and its potential for turbulence computations of industrial flows.
机译:讨论了基于PDE的方法的数值方面,用于计算许多RAN模型中涉及的距离模型的距离函数,其次讨论求解在逆转扩散形式中写的eikonal方程。 在内部结构化的多块通用CFD代码内实现和测试此方法。 一种技术,其允许相当增加数值过程的鲁棒性,并在一组通用2D几何形状(NACA4412和30P30N 3元件翼型,后向步骤)和更复杂的3D配置(Stanford扩散器和常见研究模型)上测试 商用飞机)。 结果表明,该技术允许避免通常观察到eikonal型方程的收敛问题,并计算所有测试配置的距离函数。 得到的结果显示了技术的高效率及其湍流计算的潜力。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号