Effects of Modeled Stator Wake on a Low Pressure Turbine Blade Dynamic Performance

摘要

A computational investigation was carried out for flow behavior and dynamic performance of a low pressure turbine blade (T106A) under the effect of a stator wake. Stator wake profile was mathematically modeled and porous jump method was utilized to develop it in the computational domain. Various wake profiles were studied to determine the shape of profile for the minimum total pressure loss coefficient (TPLC) as a measure of blade performance. The wake profiles were changed by varying the porous medium thickness (Am) which alters the length and width of the wake at the inlet of the blade (T106AX simulating varying distance between the stator and rotor blade.