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Hello, I am trying to replicate the cavity problem discussed in Tutorial 3 but have encountered the following error. FOAM FATAL ERROR: cannot find file "/home/openfoam/run/system/controlDict" From function virtual Foam::autoPtr<Foam::ISstream> Foam::fileOperations::uncollatedFileOperation::readStream(Foam::regIOobject&, const Foam::fileName&, const Foam::word&, bool) const in file global/fileOperations/uncollatedFileOperation/uncollatedFileOperation.C at line 539.FOAM exitingHow should I proceed?
Good morning sir,Recently i started using openfoam, i have watched lid driven cavity simulation problem, for the same problem i changed time step to 2000 and higher values, still it is not convergent. Also i changed the methods,schemes and increased my mesh up to 100 but it is not convergent!1) for which time step, the tutorial is convergent ?2) what is the fluid used in that problem ? How can it be 0.01? How to take the value of kinematic viscosity ? 3) your case is Re = 10, suppose for Re = 100, how to take d,V and viscosity for the fluid air i need ? i did like this , d=0.1m, v=1, accordingly viscosity =0.001? my doubt is viscosity cannot be constant in case of air, for different temperatures different viscosities? please tell me how to take viscosity? Is my approach is correct?4) Finally please tell me how to d,v and kinematic viscosity values ? For what time step and values it is convergent.Thank you.
Q 1) for a square cavity blocks( hex (0 1 2 3 4 5 6 7) (20 20 1) simpleGrading (1 1 1));Mesh size 20x20 then n= 20,suppose blocks( hex (0 1 2 3 4 5 6 7) (40 20 1) simpleGrading (1 1 1));mesh size = 40x 20, then how to take n = ? Q2)i want a parallel plate with length = 10 ft, breadth = 1 ft.convertToMeters 1;vertices( (0 0 0) (10 0 0) (10 1 0) (0 1 0) (0 0 0.01) (10 0 0.01) (10 1 0.01) (0 1 0.01));Is it write sir ?
I am using buoyantBoussinesqSimpleFoam solver for natural convection problem. i got few results please help me to draw residual plots(convergence criteria and How to calculate Nusselt number ?
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Outline:Simulating flow in a Lid Driven Cavity using OpenFOAM ସମସ୍ୟାର ବିଶେଷ ବିବରଣ Lid Driven Cavity ଫାଇଲର ଗଠନ ବାଉଣ୍ଡାରୀର କଣ୍ଡିଶନଗୁଡିକ ଜୋମେଟ୍ରୀକୁ Meshing କରିବା ଜୋମେଟ୍ରୀକୁ ଚେକ୍ କରିବା ସହିତ paraviewରେ ଦେଖିବା Solver ବିଷୟରେ Solving Paraview Streamline contour. U ଓ V ଭେଲୋସିଟୀକୁ ପ୍ଲଟ୍ କରିବା ପରିଣାମର ମୂଲ୍ୟାଙ୍କନ କରିବା
Simulating flow in a Lid Driven Cavity using OpenFOAM ସମସ୍ୟାର ବିଶେଷ ବିବରଣ Lid Driven Cavity ଫାଇଲର ଗଠନ ବାଉଣ୍ଡାରୀର କଣ୍ଡିଶନଗୁଡିକ ଜୋମେଟ୍ରୀକୁ Meshing କରିବା ଜୋମେଟ୍ରୀକୁ ଚେକ୍ କରିବା ସହିତ paraviewରେ ଦେଖିବା Solver ବିଷୟରେ Solving Paraview Streamline contour. U ଓ V ଭେଲୋସିଟୀକୁ ପ୍ଲଟ୍ କରିବା ପରିଣାମର ମୂଲ୍ୟାଙ୍କନ କରିବା
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