# Floating point exception,anybody can help me see is there anything wrong?

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 January 16, 2017, 14:02 Floating point exception,anybody can help me see is there anything wrong? #1 New Member   Meng Zhang Join Date: Jan 2017 Location: America Posts: 1 Rep Power: 0 Hi all, Is there anybody to check what's the problem with this case? I provide the basic setup parameters of this case. The terminal appears : DILUPBiCG: Solving for Ux, Initial residual = 0.99000642, Final residual = 6.8541306e-08, No Iterations 4 DILUPBiCG: Solving for Uy, Initial residual = 0.99716613, Final residual = 6.9062653e-08, No Iterations 4 GAMG: Solving for p, Initial residual = 0.99962119, Final residual = 0.025839189, No Iterations 2 time step continuity errors : sum local = 0.93527788, global = 0.36717821, cumulative = 0.36824128 DILUPBiCG: Solving for thetaxx, Initial residual = 0.99220779, Final residual = 2.9157135e-07, No Iterations 3 DILUPBiCG: Solving for thetaxy, Initial residual = 0.98351029, Final residual = 1.6324874e-07, No Iterations 3 DILUPBiCG: Solving for thetayx, Initial residual = 0.98351029, Final residual = 1.6324874e-07, No Iterations 3 DILUPBiCG: Solving for thetayy, Initial residual = 0.92808389, Final residual = 1.7059121e-08, No Iterations 4 DILUPBiCG: Solving for thetazz, Initial residual = 0.048199694, Final residual = 2.7407462e-07, No Iterations 4 Recover Conformation Field #0 Foam::error:rintStack(Foam::Ostream&) at ??:? #1 Foam::sigFpe::sigHandler(int) at ??:? #2 ? in "/lib/x86_64-linux-gnu/libc.so.6" #3 ? in "/lib/x86_64-linux-gnu/libm.so.6" #4 exp in "/lib/x86_64-linux-gnu/libm.so.6" #5 Foam::exp(Foam::Field&, Foam::UList const&) at ??:? #6 Foam::tmp > Foam::exp(Foam::tmp > const&) at ??:? #7 Foam::Oldroyd_B_L::correct() at ??:? #8 ? at ??:? #9 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #10 ? at ??:? Floating point exception (core dumped) These are boundary conditions of u and p The u boundary condition is that inlet { type fixedValue; value uniform (1 0 0); } outlet { type zeroGradient; } wall { type fixedValue; value uniform (0 0 0); } The p boundary condition is that boundaryField { inlet { type zeroGradient; } outlet { type fixedValue; value uniform 0; } wall { type zeroGradient; } There are some other information of this case delta T 1e-4 mesh min volume 0.0029 inlet width 1 inlet velocity 1 This case is a very easy case to calculate the flow pattern of 2 dimensions of square tube . We give the inlet a rate of flow , use the pressure as the driven source . Question: What does that terminal appearance mean? What's wrong with this case? Thank you all.

 Tags boundary conditons, floating point exception