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Functions | |
| void | viscous_tensor (real2D u, real2D v, real2D S11, real2D S22, real2D S12, real visliq, real tau, int nx, int ny) |
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Definition at line 6 of file stresses.c. Referenced by timestep().
00010 {
00011 int i, j;
00012 real h = 1.0 / (nx - 2);
00013
00014 visliq *= tau / (h * h);
00015 for (i = 1; i <= nx; i++)
00016 for (j = 2; j < ny; j++)
00017 S11[i][j] = 2.*visliq*(u[i+1][j] - u[i][j]);
00018 for (i = 2; i < nx; i++)
00019 for (j = 2; j <= ny; j++)
00020 S22[i][j] = 2.*visliq*(v[i][j+1] - v[i][j]);
00021 for (i = 2; i <= nx; i++)
00022 for (j = 2; j <= ny; j++)
00023 S12[i][j] = visliq*(u[i][j] - u[i][j-1] + v[i][j] - v[i-1][j]);
00024 }
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1.2.18