Merge branch 'development' into 2d_spherical_test

AMReX-Astro · Oct 14, 2024 · 3577b58 · 3577b58
2 parents 0a1cfb0 + 7b80efd
commit 3577b58
Showing 1 changed file with 11 additions and 5 deletions.
diff --git a/Source/hydro/advection_util.cpp b/Source/hydro/advection_util.cpp
@@ -310,12 +310,18 @@ Castro::divu(const Box& bx,
  // Finite difference to get divergence. ux = 1/r^2 d/dr(r^2 * u)
  ux = (ur * rr * rr - ul * rl * rl) * dxinv / (rc * rc);
 
- // These are transverse averages in the x-direction
- Real vb = 0.5_rt * (q_arr(i,j-1,k,QV) + q_arr(i-1,j-1,k,QV));
- Real vt = 0.5_rt * (q_arr(i,j,k,QV) + q_arr(i-1,j,k,QV));
+ // If sinc == 0, then vy goes inf.
+ // But due to Phi-symmetry, vt*sint = vb*sinb, so set to 0.
+ if (sinc == 0.0_rt) {
+ vy = 0.0_rt;
+ } else {
+ // These are transverse averages in the x-direction
+ Real vb = 0.5_rt * (q_arr(i,j-1,k,QV) + q_arr(i-1,j-1,k,QV));
+ Real vt = 0.5_rt * (q_arr(i,j,k,QV) + q_arr(i-1,j,k,QV));
 
- // Finite difference to get divergence. vy = 1/(r sin) * d/dtheta(v sin)
- vy = (vt * sint - vb * sinb) * dyinv / (rc * sinc);
+ // Finite difference to get divergence. vy = 1/(r sin) * d/dtheta(v sin)
+ vy = (vt * sint - vb * sinb) * dyinv / (rc * sinc);
+ }
  }
 
  div(i,j,k) = ux + vy;