华中科技大学学报:自然科学版2012,Vol.40Issue(2):27-30,4.
考虑旋转和曲率修正的螺旋桨梢涡流场模拟
Numerical simulation of propeller tip vortex flow with rotation-curvature correction
摘要
Abstract
Propeller tip vortex flowfield in the wake was calculated using explicit algebraic Reynolds stress model (EARSM). In order to avoid over-prediCting the eddy viscosity along the vortex core, the rotation-curvature correction was adopted to the turbulence model. A single-block structure gridwas generated for the current computational domain. In order to reduce the discrete error induced by grid, the mesh refinement was applied to the area of tip vortex core in numerical simulation. The cal- culated results show that the numerical method can exactly predict the velocity distribution, vortexcore location and primary and secondary vortex structures in tip vortex formation and evolution, and agree with the test results.关键词
螺旋桨/梢涡流场/梢涡空泡/显式代数雷诺应力模型/旋转和曲率修正/涡核Key words
propeller/tip vortex flow/tip vortex cavitaion/explicit algebraic Reynolds stress model(EARSM)/rotation-curvature correction/tip vortex core分类
交通工程引用本文复制引用
熊鹰,韩宝玉,刘志华..考虑旋转和曲率修正的螺旋桨梢涡流场模拟[J].华中科技大学学报:自然科学版,2012,40(2):27-30,4.基金项目
国家自然科学基金资助项目(51079157). ()