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Showing results 1 to 5 of 5 Search took 0.00 seconds. Search: Posts Made By: ghorrocks

Forum: CFX May 29, 2013, 19:11

Replies: 10 Possibility of compressible 1d riemann problem Views: 1,366 Posted By ghorrocks "Wiggles" at shockwaves is a common problem in... "Wiggles" at shockwaves is a common problem in CFD simulations of shock waves. The high resolution differencing scheme helps here but does not eliminate it generally. Also they tend to be time step...

Forum: CFX May 16, 2013, 03:19

Replies: 10 Possibility of compressible 1d riemann problem Views: 1,366 Posted By ghorrocks Make the domain just a single domain. Then use a... Make the domain just a single domain. Then use a CEL expression like this to set your initial condition: Pressure = if(x<0.5[m],1[bar],0[bar]) To set the pressure at 1bar up to x=0.5m, and 0bar...

Forum: CFX May 15, 2013, 18:23

Replies: 10 Possibility of compressible 1d riemann problem Views: 1,366 Posted By ghorrocks I thought you were going to do an ideal gas model... I thought you were going to do an ideal gas model first. Then you just set one side a high pressure and the other low and let it go from there. There will be a shock and rarefaction wave which...

Forum: CFX May 15, 2013, 08:41

Replies: 10 Possibility of compressible 1d riemann problem Views: 1,366 Posted By ghorrocks No problem, the ideal gas model is an excellent... No problem, the ideal gas model is an excellent model to do as it has analytical answers to compare against. No need for sensitivity analysis, you can compare directly against exact answers. And this...

Forum: CFX May 15, 2013, 06:36

Replies: 10 Possibility of compressible 1d riemann problem Views: 1,366 Posted By ghorrocks There is no need to do this with 2 domains. Do it... There is no need to do this with 2 domains. Do it in one domain with an initial condition. The CFX tutorials show how you can set initial conditions like this - see flow over a bump for how they do...

Showing results 1 to 5 of 5

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