Validation simulations of the DSMC code SPARTA

The Direct Simulation Monte Carlo (DSMC) method has been used for over 50 years to simulate rarified gas flows for a wide range of applications where continuum assumptions fail. Extensive efforts to validate and verify the DSMC method are essential to establishing confidence in the technique and to promoting its broader application. Here, validation results for two cases are presented using a recently developed, open-source DSMC code called SPARTA.