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fix the subchandra second pert #2553

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Sep 17, 2023
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fix the subchandra second pert #2553

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17 changes: 11 additions & 6 deletions Exec/science/subchandra/problem_initialize_state_data.H
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Original file line number Diff line number Diff line change
Expand Up @@ -72,7 +72,7 @@ void problem_initialize_state_data (int i, int j, int k,

// add a perturbation at the north pole

Real t0 = state(i,j,k,UTEMP);
Real T0 = state(i,j,k,UTEMP);

// perturbation is on the vertical-axis

Expand All @@ -92,8 +92,10 @@ void problem_initialize_state_data (int i, int j, int k,
// convolve the temperature perturbation with the amount of He
Real X_he = burn_state.xn[problem::ihe4];

state(i,j,k,UTEMP) = t0 * (1.0_rt + X_he * problem::pert_temp_factor *
(0.150e0_rt * (1.0_rt + std::tanh(2.0_rt - r1))));
Real Tpert = T0 * (1.0_rt + X_he * problem::pert_temp_factor *
(0.150e0_rt * (1.0_rt + std::tanh(2.0_rt - r1))));

Real dT = Tpert - T0;


#if AMREX_SPACEDIM == 3
Expand All @@ -120,14 +122,17 @@ void problem_initialize_state_data (int i, int j, int k,

// we are assuming here that the 2 perturbations don't overlap

state(i,j,k,UTEMP) = t0 * (1.0_rt + X_he * problem::second_pert_temp_factor *
(0.150e0_rt * (1.0_rt + std::tanh(2.0_rt - r2))));
Tpert = T0 * (1.0_rt + X_he * problem::second_pert_temp_factor *
(0.150e0_rt * (1.0_rt + std::tanh(2.0_rt - r2))));

dT += (Tpert - T0);

}
#endif

burn_state.rho = state(i,j,k,URHO);
burn_state.T = state(i,j,k,UTEMP);
burn_state.T = T0 + dT;

// we don't need to refill xn, since it still holds unchanged from above

eos(eos_input_rt, burn_state);
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