Numerical Simulation of High Mach Number Astrophysical Jets with Radiative Cooling

Authors:
Youngsoo Ha;Carl L. Gardner;Anne Gelb;Chi-Wang Shu
Affiliations:
Division of Applied Mathematics, Korean Advanced Institute of Science and Technology, Taejon, South Korea 305-701;Department of Mathematics and Statistics, Arizona State University, Tempe, USA 85287-1804;Department of Mathematics and Statistics, Arizona State University, Tempe, USA 85287-1804;Division of Applied Mathematics, Brown University, Providence, USA 02912
Venue:
Journal of Scientific Computing
Year:
2005

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Abstract

Computational fluid dynamics simulations using the WENO-LF method are applied to high Mach number nonrelativistic astrophysical jets, including the effects of radiative cooling. Our numerical methods have allowed us to simulate astrophysical jets at much higher Mach numbers than have been attained (Mach 20) in the literature. Our simulations of the HH 1-2 astrophysical jets are at Mach 80. Simulations at high Mach numbers and with radiative cooling are essential for achieving detailed agreement with the astrophysical images.