Unstructured Incompressible Navier-Stokes Solver

Investigators: Michael Maresca & Ganesh Rajagopalan

Sponsored by : AEEM Department @ ISU

A pressure-based procedure for analyzing flows over complex geometries is developed. The method calculates pressure and velocity on co-located grids by generating an "artificial" velocity filed based on the momentum equations. This equal-order technique models the two-dimensional, incompressible, laminar, Navier-Stokes equations and solves them using the SIMPLER algorithm. The architecture of the code is rooted in edge data structure which increases the applicability to complex domains.

Figure 1: Unstructured grid generated using advance fron method for 4-port valve.

Figure 2: Presssure contour for a 4-port valve at Re=10 for 4-port valve.

Figure 3: Presssure contour for a 4-port valve at Re=50 for 4-port valve.

Figure 4: Unstructured grid over 2D cylinder. for 4-port valve.

Figure 5: Pressure contours over 2D cylinder at Re=40 for 4-port valve.