TY - JOUR
TI - Study on tip leakage vortex in an axial flow pump based on modified shear stress transport k-ω turbulence model
AU - Zhang Desheng
AU - Pan Dazhi
AU - Shi Weidong
AU - Wu Suqing
AU - Shao Peipei
JN - Thermal Science
PY - 2013
VL - 17
IS - 5
SP - 1551
EP - 1555
PT - Article
AB - The tip leakage vortex structure and trajectory in an axial flow pump were  investigated numerically and experimentally based on the modified shear  stress transport k-ω turbulence model. Numerical results were compared with  the experimental leakage vortex trajectories, and a good agreement was  presented. The detailed trajectories of tip leakage vortex show that the  starting point of tip leakage vortex occurs near the leading edge at small  flow rate, and it moves from leading edge to about 30% chord length at design  flow rate. At larger flow rate condition, the starting point of tip leakage  vortex shifts to the middle of chord.