diff options
| -rw-r--r-- | src/InitialData.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/src/InitialData.c b/src/InitialData.c index 1ecc970..c7ac1d3 100644 --- a/src/InitialData.c +++ b/src/InitialData.c @@ -98,11 +98,17 @@ void IDScalarWaveC_InitialData(CCTK_ARGUMENTS) phi[index] = amplitude*exp( - sqr( (R - radius) / sigma ) ); - phi_p[index] = amplitude/2.0*(R-dt)/R* - exp( - sqr( (R - radius - dt)/ sigma ) ) - + amplitude/2.0*(R+dt)/R* - exp( - sqr( (R - radius + dt)/ sigma ) ) - ; + if (R == 0.0) + { + phi_p[index] = (1.0 - 2.0*dt*dt/sigma)*exp(-dt*dt/sigma); + } + else + { + phi_p[index] = amplitude/2.0*(R-dt)/R* + exp( - sqr( (R - radius - dt)/ sigma ) ) + + amplitude/2.0*(R+dt)/R* + exp( - sqr( (R - radius + dt)/ sigma ) ); + } } } } |