PLUTO Test Problems
4.4-patch2
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Relativistic jet propagation. More...
Functions | |
void | InitDomain (Data *d, Grid *grid) |
This problem sets initial and boundary conditions for a jet propagating into a uniform medium with constant density and pressure. The computation can be carried using CYLINDRICAL
or SPHERICAL
coordinates. In the first case, the jet enters at the lower z-boundary with speed while in the second case, a conical beam with a small aperture (
) is injected with the same speed from the lower radial boundary. At the border of the nozzle, jet values are smoothly joined with ambient values using the Profile() function (in the current setting the profile is a sharp transition). The jet is pressure-matched so that the beam and ambient pressure coincide.
The configuration is defined in terms of the following parameters:
g_inputParam[BETA]
: the jet velocity;g_inputParam[RHO_IN]
: the jet density;g_inputParam[RHO_OUT]
: the ambient density.g_inputParam[PRESS_IN]
: the jet pressure (also equal to ambient pressure)defined in pluto.ini
. The TAUB
equation of state is used.
CYLINDRICAL
coordinates;SPHERICAL
coordinates (see snapshot below)