Modeling of 3-D Losses and Deviations in a Throughflow Analysis Tool  

作　　者：Jean-Fran■ois Simon OlivierLéonard 

机构地区：[1]Techspace Aero-Aerodynamic Group [2]University

出　　处：《Journal of Thermal Science》2007年第3期208-214,共7页热科学学报（英文版）

摘　　要：This contribution is dedicated to the modeling of the end-wall flows in a throughflow model for turbomachinery applications. The throughflow model is based on the Euler or Navier-Stokes equations solved by a Finite-Volume technique. Two approaches are presented for the end-wall modeling. The first one is based on an inviscid formulation with dedicated 3-D distributions of loss coefficient and deviation in the end-wall regions. The second approach is directly based on a viscous formulation with no-slip boundary condition along the annular end-walls and blade force modification in the region close to the end-walls. The throughflow results are compared to a series of 3-D Navier-Stokes calculations averaged in the circumferential direction. These 3-D calculations were performed on the three rotors of a low pressure axial compressor, for a series of tip clearance values.

关 键 词：THROUGHFLOW LOSSES DEVIATIONS axial compressors 

分 类 号：TB126[理学—工程力学]