Conjugate Heat Transfer Simulation for Unstructured Grids

摘要：

The coupled calculation of the fluid flow and the solid heat transfer (conjugate heat transfer) is a promising approach in engineering specially to the thermal problem of turbine blade with internal cooling. A conjugate heat transfer code has been built on the hybrid unstructured meshes in this paper. The fluid flow is simulated by Reynolds-averaged Navier-Stokes equations and the turbulence model is Spalart-Allmaras model. The solid heat transfer is simulated by heat conduction equation. At every iteration, the couple approach is achieved by maintaining a continuous local heat flux and a common temperature at the points along the fluid-solid interface. The key of the couple approach is the calculation of interface temperature which maintains the equality of the local heat flux passing the interface. On the fluid-solid interface, a point to point mesh relationship in the purpose of avoiding interpolation has been built in order to guarantee information delivery between the fluid domain and solid domain. To validate the code, computational results have been compared with theoretical and experimental results for laminar couple flat plate and Mark-Ⅱ turbine guide blade. All results showed well compared with theoretical and experimental results. All these results verified the conjugate capability of the code.

关键词： component conjugate heat transfer unstructured meshes fluid-solid interface

作者: ZhaoZiyang GeNing Sheng Chunhua

作者单位: College of Energy & Power Engineering,Nan Jing University of aeronautics and astronautics CEPE NUAA University Toledo UT Toledo, USA

会议类型: 国际会议

会议名称: The 3rd International Symposium on Jet Propulsion and Power Engineering(第三届喷气推进与动力工程国际会议 ISJPPE)

会议地点: 南京

会议语种:英文

页码: 269-272

在线出版日期: 2010-09-13（万方平台首次上网日期，不代表论文的发表时间）