Mohammad - Thermohani/kurser/OS_CFD_2010/assignment1/moha… · Mohammad Irannezhad •Velocity...
Transcript of Mohammad - Thermohani/kurser/OS_CFD_2010/assignment1/moha… · Mohammad Irannezhad •Velocity...
Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 1
Cavity Case
Mohammad Irannezhad
• Stream traces shown with filters/StreamTracer
• Velocity vectors calculated according to the tutorial, colored by solid color
Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 2
CavityFine Case
Mohammad Irannezhad
• Vorticity calculated from filters/ComputeDerivatives, then filters/CellDatatoPointData
Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 3
CavityGrading Case
Mohammad Irannezhad
• Mesh qualty based on the area of the cells is first calculated with filters/MeshQuality,
• Then the point values are calculated from filters/CellDatatoPointData
• Surfaces with Edges is chosen in Display/style to show the actual cell faces
Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 4
CavityClipped Case
Mohammad Irannezhad
• Velocity vectors interpolated from cavity case for time 0.5 is shown in the back
• Velocity vectors for the real solution at the same time is shown in front
• This is to show how two plots which are at the same location can be sperated by
moving one of them from display/transfprmation
Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 5
CavityHighRe Case
Mohammad Irannezhad
• Filled contours of ǫ
Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 6
plateHole Case
Mohammad Irannezhad
• Comparison of simulated σxx with σxxAnalytical using filter/PlotOverLine
• Components of simulated σ are calculated with foamCalc
• σxxAnalytical is calculated from analytical solution using filter/calculator
Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 7
damBreak Case
Mohammad Irannezhad
• Time-averaged α calculated with filters/TemporalStatistics
Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 8
Cylinder Case
Mohammad Irannezhad
• Velocity Magnitude contours, the domain is mirrored to give the full domain
Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 9
PitzDaily Case
Mohammad Irannezhad
• Values of turbulent length scale
Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 10
Forward Facing Step Case
Mohammad Irannezhad
• Values of Mach number
Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 11
Decompression Tank Case
Mohammad Irannezhad
Figure 1: (1) Figure 2: (2)
Figure 3: (3) Figure 4: (4)
• Evolution of pressure waves at the outlet of the tank and the nozzle shown as
concentric spherical slices
Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 12
Decompression Tank Fine Case
Mohammad Irannezhad
• Velocity vectors
Hakan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 13
Hartmann Case
Mohammad Irannezhad
• Analytical axial velocity compared to CFD calculations for B = 20