#============================================================================== # Laminar Canal Flow #============================================================================== # Problem specific Data: # --------------------- name canal # name of flow setup bcTop 1 # flags for boundary conditions bcBottom 1 # 1 = no-slip 3 = outflow bcLeft 3 # 2 = free-slip 4 = periodic bcRight 3 # gx 0.0 # Body forces (e.g. gravity) gy 0.0 # re 100.0 # Reynolds number u_init 1.0 # initial value for velocity in x-direction v_init 0.0 # initial value for velocity in y-direction p_init 1.0 # initial value for pressure # Geometry Data: # ------------- xlength 30.0 # domain size in x-direction ylength 4.0 # domain size in y-direction imax 256 # number of interior cells in x-direction jmax 64 # number of interior cells in y-direction # Time Data: # --------- te 80.0 # final time dt 0.02 # time stepsize tau 0.5 # safety factor for time stepsize control (<0 constant delt) # Pressure Iteration Data: # ----------------------- itermax 500 # maximal number of pressure iteration in one time step eps 0.0001 # stopping tolerance for pressure iteration rho 0.52 omg 1.8 # relaxation parameter for SOR iteration gamma 0.9 # upwind differencing factor gamma # Multigrid data: # --------- levels 3 # Multigrid levels presmooth 5 # Pre-smoothning iterations postsmooth 5 # Post-smoothning iterations # Particle Tracing Data: # ----------------------- numberOfParticles 60 startTime 5.0 injectTimePeriod 4.0 writeTimePeriod 1.0 x1 1.0 y1 0.0 x2 1.0 y2 4.0 # Obstacle Geometry Data: # ----------------------- # Shape 0 disable, 1 Rectangle/Square, 2 Circle shape 0 xCenter 10.0 yCenter 2 xRectLength 6.0 yRectLength 1.0 circleRadius 1.0 #===============================================================================