DSMC simulation of the interaction between rarefied free jetsThis paper presents a direct simulation Monte Carlo (DSMC) calculation of two interacting free jets exhausting into vacuum. The computed flow field is compared against available experimental data and shows excellent agreement everywhere except in the very near field (less than one orifice diameter downstream of the jet exhaust plane). The lack of agreement in this region is attributed to having assumed an inviscid boundary condition for the orifice lip. The results serve both to validate the DSMC code for a very complex, three dimensional non-equilibrium flow field, and to provide some insight as to the complicated nature of this flow.
Document ID
19930062603
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Dagum, Leonardo (NASA Ames Research Center Moffett Field, CA, United States)
Zhu, S. H. K. (Rockwell International Corp. Rocketdyne Div., Canoga Park, CA, United States)