Hydraulic coupling flow field simulation analysis method and its moment coefficient of

Fluid coupling is carried out using the kinetic energy transfer fluid hydraulic transmission machinery. Having a flexible transmission, cushion the impact, light-load start, overload protection, torsional vibration isolation, coordination and more balanced power machine drives and other outstanding features, widely used in shipbuilding, metallurgy, power generation, mining and other heavy industries. Through theoretical analysis and simulation technology research, to establish a fluid coupling flow field simulation analysis method, the fluid coupling torque coefficient λ_B theoretical research, combined with the flow field simulation results are summarized λ_B coefficient of variation of the speed n_B and apply JO65XR  Hydraulic tube fittings  coupling verified by experiments. The main contents are as follows. (1) hydraulic coupling flow field simulation analysis methods. First study the current flow field simulation analysis techniques, including turbulence model, mesh generation technology, the formation fluid coupling flow field simulation analysis methods to guide the process. Then the fluid coupling conditions and the flow field to make certain assumptions to facilitate geometric modeling. Combined with STAR-CCM + software, in-depth study fluid coupling dimensional flow field modeling and simulation methods and processes, including geometry, computational grid model, physical model settings, boundary conditions, convergence criteria, the results display.