首页> 外文会议>International symposium on fluid machinery and fluid engineering;ISFMFE >Numerical simulation of flow field and heat transfer of a turbine cascade
【24h】

Numerical simulation of flow field and heat transfer of a turbine cascade

机译:涡轮叶栅流场和传热的数值模拟

获取原文

摘要

The objective of this study is to use the Navier-Stokes solver, to predict the detailed flow field and heat transfer in turbomachinery flow environment and to validate the numerical calculations against experimetnal data to identify the capability and performance of the state-of-the-art solver in such sort of engineering applications. The Reynolds-Averaged Navier-Stokes equations and the Yang-Shih k-epsilon turbulence model are implemented. The five-stage Runge-Kutta temporal discretization scheme, central spatial spatial discretization scheme, first and second-order upwind schemes well as the multigrid with three grid levels and V-cycle strategy are employed in the solver. The mesh used for the Navier-Stokes claculation in which clustering has been imposed in the pitchwise direction, whereas the upstream and downstream are periodic. The first point close to the blade walls is situated at a location y~+<1. One can notice that the mesh remains orthogonal to the blade walls, even in the leading and trailing edge.
机译:这项研究的目的是使用Navier-Stokes求解器,预测涡轮机械流动环境中的详细流场和传热,并根据实验数据验证数值计算,以识别最新状态的能力和性能。这类工程应用中的艺术求解器。实现了雷诺平均Navier-Stokes方程和Yang-Shihk-ε湍流模型。在求解器中,采用了五阶段Runge-Kutta时间离散方案,中央空间空间离散方案,一阶和二阶迎风方案以及具有三个网格级别的多重网格和V循环策略。用于Navier-Stokes网格的网格,其中已在音高方向上施加了聚类,而上游和下游是周期性的。靠近叶片壁的第一点位于位置y〜+ <1。可以注意到,即使在前缘和后缘中,网格仍然与叶片壁正交。

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