INVESTIGATION OF VISCOUS FLOW FIELD AROUND AN AP- PENDED REVOLUTION BODY WITH GUIDE VANE PRO- PELLER

摘要

A RANS solver is presented to numerically simulate the viscous wake of an appended revolution body with guide vane propeller at the Reynolds number 10~7. The k-εturbulence model together with wall function is used. The resulting finite difference e- quations are solved by SIMPLEC and ADI. The technique of rising up the bottom surface is presented to overcome radial contraction problem in Cartesian coordinate system. The three-dimensional body forces are separately adopted to model the affection of the guide vane and propeller. The detailed flow characteristics, especially the counter-swirl compo- nent generated by the guide vane in the propeller inflow, are numerically seized successful- ly. Compared with the experimental data. The computational axial velocity on the pro- peller disk plane comes up to engineering requirement.