Tutorial: cavity. Karl Jacob Maus. Håkan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 1
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1 Tutorial: cavity Contourplots of pressure, and streamlines with velocity vectors coloured by velocity magnitude; steady-state. Håkan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 1
2 Tutorial: cavityfine Isocontours of pressure for cavity (white) and cavityfine (black). Velocity of cavityfine plotted as vectors and coloured by magnitude. Håkan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 2
3 Tutorial: cavityfine Horizontal velocity Ux as a function of distance to cavity base. Plotted using ParaView with the plot over line-filter. Håkan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 3
4 Tutorial: cavitygrade Isocontours of pressure, and streamlines with flow direction indicators coloured by velocity magnitude. Håkan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 4
5 Tutorial: cavityhighre Reynolds number 100. Reynolds number seconds. 10 seconds. Both cases were solved with icofoam on a coarse mesh. Håkan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 5
6 Tutorial: cavityclipped Clipped corner; map solution from cavity to initial condition for cavityclipped, then set all fixed-boundary velocities to zero. Håkan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 6
7 Tutorial: platehole sets/100/leftpatch_sigmaxx.xy 1e4*(1+.125/(x**2) /(x**4)) σ xx vs. vertical distance from hole along centerline. Analytical and numerical solutions. Coloured by magnitude of σ xx ; includes displacement vectors. Håkan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 7
8 Tutorial: dambreak t = 0.2s t = 0.6s t = 0.4s t = 0.8s Håkan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 8
9 Tutorial: dambreakfine t = 0.2s t = 0.6s t = 0.4s Simulation run on 4 processor cores. t = 0.8s Håkan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 9
10 Tutorial: pitzdaily 50 steps 250 steps Håkan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 10
11 Tutorial: pitzdaily 500 steps 1000 steps Håkan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 11
12 Tutorial: forwardstep Supersonic flow over step. Isocontours of pressure; fluid velocity distribution. Håkan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 12
13 Tutorial: decompressiontank t = 50 µs t = 80 µs t = 100 µs Pressure contours and fluid velocity vectors. Håkan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 13
14 Tutorial: decompressiontankfine t = 50 µs t = 80 µs t = 100 µs Pressure contours and fluid velocity vectors. Fine mesh. Håkan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 14
15 Tutorial: hartmann Velocity profile at two different magnetic field strengths (+ B = 20T; x B = 2T) GNUplot plot using sample utility. ParaView plot-over-line filter of velocity with B = 20T Håkan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 15
16 Modified tutorial: dambreakfine Problem identical to the dambreakfine-problem with different geometry. Processed in parallel on 4 cores. Mesh and core partitioning with initial α-distribution in red. Cell partitioning of new blocks computed to comply with cell sizes from dambreakfine tutorial. Håkan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 16
17 Modified tutorial: dambreakfine Velocity and phase fraction plots. t = 0.55s Håkan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 17
18 Modified tutorial: dambreakfine Velocity and phase fraction plots. t = 0.65s Håkan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 18
19 Modified tutorial: dambreakfine Velocity and phase fraction plots. t = 0.90s Håkan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 19
20 Modified tutorial: dambreakfine Velocity and phase fraction plots. t = 1.40s Håkan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 20
21 Modified tutorial: dambreakfine Velocity and phase fraction plots. t = 2.00s Håkan Nilsson, Chalmers / Applied Mechanics / Fluid Dynamics 21
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