NUMERICAL-ANALYSIS OF TURBULENT-FLOW IN FLUID COUPLINGS

Numerical simulation of three-dimensional unsteady turbulent flows in fluid couplings was carried out by numerically solving Navier-Stokes e quations in a rotating coordinate system. The standard k-epsilon model was used to take turbulence into account. A finite volume scheme with colocated body-fitted grids was used to solve the basic equations. Co mpleted flow structures show the vortex generation and its effect on t he torque transmission. Computed local velocity and torque flow compar e well with measurements.