diff options
| author | Erik Schnetter <schnetter@cct.lsu.edu> | 2010-02-01 11:07:48 -0600 |
|---|---|---|
| committer | Erik Schnetter <schnetter@cct.lsu.edu> | 2010-02-01 11:08:03 -0600 |
| commit | d7e78ca6bdeccce7692254163502fb3c1413aa3e (patch) | |
| tree | 726e05c90b1d0a1544b91f8afc821ddddfdd211f /ML_BSSN | |
| parent | 77f234967fbcc6344888c8ef5f84d42adf7d1078 (diff) | |
Handle the case correctly where ShiftGammaCoeff=0. Don't dividy by ShiftGammaCoeff in this case; instead, initialise the (unused) B^i to zero.
Diffstat (limited to 'ML_BSSN')
| -rw-r--r-- | ML_BSSN/src/ML_BSSN_convertFromADMBaseGamma.c | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/ML_BSSN/src/ML_BSSN_convertFromADMBaseGamma.c b/ML_BSSN/src/ML_BSSN_convertFromADMBaseGamma.c index ef2a0a3..8de9e36 100644 --- a/ML_BSSN/src/ML_BSSN_convertFromADMBaseGamma.c +++ b/ML_BSSN/src/ML_BSSN_convertFromADMBaseGamma.c @@ -266,14 +266,23 @@ void ML_BSSN_convertFromADMBaseGamma_Body(cGH const * const cctkGH, CCTK_INT con AL = -(dtalpL*(-1 + LapseAdvectionCoeff)*INV(harmonicF)*pow(alphaL,-harmonicN)); - B1L = (dtbetaxL - (PDupwindNth1(beta1, i, j, k)*beta1L + PDupwindNth2(beta1, i, j, k)*beta2L + - PDupwindNth3(beta1, i, j, k)*beta3L)*ShiftAdvectionCoeff)*INV(ShiftGammaCoeff); - - B2L = (dtbetayL - (PDupwindNth1(beta2, i, j, k)*beta1L + PDupwindNth2(beta2, i, j, k)*beta2L + - PDupwindNth3(beta2, i, j, k)*beta3L)*ShiftAdvectionCoeff)*INV(ShiftGammaCoeff); - - B3L = (dtbetazL - (PDupwindNth1(beta3, i, j, k)*beta1L + PDupwindNth2(beta3, i, j, k)*beta2L + - PDupwindNth3(beta3, i, j, k)*beta3L)*ShiftAdvectionCoeff)*INV(ShiftGammaCoeff); + B1L = 6*IfThen(ShiftGammaCoeff,dtbetaxL*INV(ShiftGammaCoeff),0) + + IfThen(ShiftGammaCoeff,(dtbetaxL - PDupwindNth1(beta1, i, j, k)*beta1L*ShiftAdvectionCoeff)*INV(ShiftGammaCoeff), + 0) + IfThen(ShiftGammaCoeff,(dtbetaxL - PDupwindNth2(beta1, i, j, k)*beta2L*ShiftAdvectionCoeff)* + INV(ShiftGammaCoeff),0) + IfThen(ShiftGammaCoeff, + (dtbetaxL - PDupwindNth3(beta1, i, j, k)*beta3L*ShiftAdvectionCoeff)*INV(ShiftGammaCoeff),0); + + B2L = 6*IfThen(ShiftGammaCoeff,dtbetayL*INV(ShiftGammaCoeff),0) + + IfThen(ShiftGammaCoeff,(dtbetayL - PDupwindNth1(beta2, i, j, k)*beta1L*ShiftAdvectionCoeff)*INV(ShiftGammaCoeff), + 0) + IfThen(ShiftGammaCoeff,(dtbetayL - PDupwindNth2(beta2, i, j, k)*beta2L*ShiftAdvectionCoeff)* + INV(ShiftGammaCoeff),0) + IfThen(ShiftGammaCoeff, + (dtbetayL - PDupwindNth3(beta2, i, j, k)*beta3L*ShiftAdvectionCoeff)*INV(ShiftGammaCoeff),0); + + B3L = 6*IfThen(ShiftGammaCoeff,dtbetazL*INV(ShiftGammaCoeff),0) + + IfThen(ShiftGammaCoeff,(dtbetazL - PDupwindNth1(beta3, i, j, k)*beta1L*ShiftAdvectionCoeff)*INV(ShiftGammaCoeff), + 0) + IfThen(ShiftGammaCoeff,(dtbetazL - PDupwindNth2(beta3, i, j, k)*beta2L*ShiftAdvectionCoeff)* + INV(ShiftGammaCoeff),0) + IfThen(ShiftGammaCoeff, + (dtbetazL - PDupwindNth3(beta3, i, j, k)*beta3L*ShiftAdvectionCoeff)*INV(ShiftGammaCoeff),0); /* Copy local copies back to grid functions */ |