3D Simulation of Combining Flows in 90° Rectangular Closed Conduits

Combining flows are encountered often in environmental engineering and hydraulic engineering. Experimental data are available to assist the engineers who need the various loss coefficients associated with combining flows in closed conduits. For the combining flows in 90° rectangular conduit junctions, the Reynolds averaged Navier–Stokes equations are applied, while using the three-dimensional k-ω model. The energy loss coefficients and the mean flow pattern are obtained and validated by experimental data. The numerical modeling is less time-consuming and less expensive to obtain the various flow parameters needed for engineering design.