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Solved the forcing function boundary problem.

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Miikka Vaisala
2019-07-01 11:06:42 +08:00
parent f04ef8e64c
commit 9f0be0d9ff
5 changed files with 32 additions and 25 deletions
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3
acc/mhd_solver/stencil_process.sps
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@@ -275,8 +275,7 @@ forcing(int3 globalVertexIdx, Scalar dt)
Vector force = helical_forcing(magnitude, k_force, xx, ff_re,ff_im, phase);
//Scaling N = magnitude*cs*sqrt(k*cs/dt) * dt
const Scalar kk = sqrt(k_force.x*k_force.x + k_force.y*k_force.y + k_force.z*k_force.z);
const Scalar NN = cs*sqrt(kk*cs); // kk should be the average k!!!
const Scalar NN = cs*sqrt(DCONST_REAL(AC_kaver)*cs);
//MV: Like in the Pencil Code. I don't understandf the logic here.
force.x = sqrt(dt)*NN*force.x;
force.y = force.y;