A 3-D Preconditioning Conjugate Heat Transfer Solver and Validation
A three-dimensional multi-block conjugate heat transfer (CHT) solver with preconditioning has been developed based on a sophisticated turbomachinery CFD code-Denton code. The capability of CHT calculation is accomplished by integrating a new heat conduction procedure into the flow solver. In order to reduce the numerical dissipation of the original code, the Jameson scalar and matrix dissipation schemes which have lower numerical dissipation are integrated into the original code. Four turbulence models are added to the original code, including algebraic Bladwin-Lomax model, one-equation Spalart-Allmaras model, two-equation low-Reynolds Chien k-ε model and k-ε SST model. A Preconditioning method is integrated into the original code to make the solver has the ability to simulate compressible and incompressible flows simultaneously. The properties of different dissipation schemes and turbulence models are validated through three cases: the laminar and turbulent flow over a flat plate and the Sajben diffuser flow. An inviscid channel bump flow and lid-driven cavity flow are implemented to validate the preconditioning method. At last, the capability of CHT simulation of the present solver is verified by two CHT cases including conjugate heat transfer of laminar flow over a flat plate and laminar flow in a duct. Meanwhile, the influences of different dissipation schemes to the accuracy of CHT simulation are also discussed.
component conjugate heat transfer numerical simulation matrix dissipation scheme turbulence models preconditioning
YuLi ZhengpingZou
National Key Laboratory of Science and Technology on Aero-Engines Aero-engine Numerical Simulation Research Center School of Jet Propulsion, Beihang University Beijing, China
国际会议
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)
南京
英文
257-268
2010-09-13（万方平台首次上网日期，不代表论文的发表时间）