xref: /honee/qfunctions/velocity_gradient_projection.h (revision 0c608af58d6c66f4fcbe6fff5e0f907584234584)
1 // SPDX-FileCopyrightText: Copyright (c) 2017-2024, HONEE contributors.
2 // SPDX-License-Identifier: Apache-2.0 OR BSD-2-Clause
3 #include <ceed/types.h>
4 
5 #include "newtonian_state.h"
6 #include "newtonian_types.h"
7 #include "utils.h"
8 
9 CEED_QFUNCTION_HELPER int VelocityGradientProjectionRHS(void *ctx, CeedInt Q, const CeedScalar *const *in, CeedScalar *const *out,
10                                                         StateVariable state_var) {
11   const CeedScalar(*q)[CEED_Q_VLA]         = (const CeedScalar(*)[CEED_Q_VLA])in[0];
12   const CeedScalar(*Grad_q)[5][CEED_Q_VLA] = (const CeedScalar(*)[5][CEED_Q_VLA])in[1];
13   const CeedScalar(*q_data)                = in[2];
14   CeedScalar(*v)[CEED_Q_VLA]               = (CeedScalar(*)[CEED_Q_VLA])out[0];
15 
16   NewtonianIGProperties gas = ((NewtonianIdealGasContext)ctx)->gas;
17 
18   CeedPragmaSIMD for (CeedInt i = 0; i < Q; i++) {
19     const CeedScalar qi[5] = {q[0][i], q[1][i], q[2][i], q[3][i], q[4][i]};
20     CeedScalar       wdetJ, dXdx[3][3];
21     QdataUnpack_3D(Q, i, q_data, &wdetJ, dXdx);
22 
23     const State s = StateFromQ(gas, qi, state_var);
24     State       grad_s[3];
25     StatePhysicalGradientFromReference(Q, i, gas, s, state_var, (CeedScalar *)Grad_q, dXdx, grad_s);
26 
27     CeedScalar grad_velocity[3][3];
28     VelocityGradient(grad_s, grad_velocity);
29 
30     for (CeedInt j = 0; j < 3; j++) {
31       for (CeedInt k = 0; k < 3; k++) {
32         v[j * 3 + k][i] = wdetJ * grad_velocity[j][k];
33       }
34     }
35   }
36   return 0;
37 }
38 
39 CEED_QFUNCTION(VelocityGradientProjectionRHS_Conserv)(void *ctx, CeedInt Q, const CeedScalar *const *in, CeedScalar *const *out) {
40   return VelocityGradientProjectionRHS(ctx, Q, in, out, STATEVAR_CONSERVATIVE);
41 }
42 
43 CEED_QFUNCTION(VelocityGradientProjectionRHS_Prim)(void *ctx, CeedInt Q, const CeedScalar *const *in, CeedScalar *const *out) {
44   return VelocityGradientProjectionRHS(ctx, Q, in, out, STATEVAR_PRIMITIVE);
45 }
46 
47 CEED_QFUNCTION(VelocityGradientProjectionRHS_Entropy)(void *ctx, CeedInt Q, const CeedScalar *const *in, CeedScalar *const *out) {
48   return VelocityGradientProjectionRHS(ctx, Q, in, out, STATEVAR_ENTROPY);
49 }
50