Computational Details:

"Rotating propeller in a box for a low Reynolds number"

• diameter of square: 0.6
• length/width of propeller : 0.5/0.1
• rotational speed of propeller : 0.5*PI
• Dirichlet b.c.'s on propeller surface (= differentiation of the propeller speed)
• Dirichlet b.c.'s for right inflow with horizontal speed -1
• natural b.c.'s on the three outlets
• other b.c.'s: zero velocity at walls of the square
• initial condition at t=0: starting from rest
• viscosity parameter: 1/nu=100

• coarse mesh (=level 1): 1 square !!!
• equidistantly refined tensor product mesh of the square EVERYWHERE and for ALL TIME STEPS !!!
• computation and visualization on level 8: 16,384 cells, 16,641 vertices, 82,432 d.o.f.`s
• nonconforming nonparametric rotated bilinear fem's (meanvalue version), UPW

• equidistant time stepping for computation with k=0.00111112
• equidistant time stepping for visualization with k= 0.02 (= 1 frame)
• Total time T=5 seconds corresponds to 4,500 time steps
• fractional step theta scheme

• date: 04/15/98
• simulation by: S.Turek
• visualization by: S.Turek
• SUN ULTRA 45/250: 13 MB, 269,537 seconds
• AVS data: 750 MB
• Software: FEATFLOW1.1 + CC2D_MOVBC

• For more details about numerical and algorithmic aspects see the `Mathematical Background' in the FEATFLOW manual or visit our paper archive for much more details.
• The problem-specific data for the applied software version including parameter files and input data can be downloaded here!