528
M. Abhay et al.
Fig. 9 Variation in shear
stress on the surface
Fig. 10 Variation in drag on
the surface
• Validation case based on the data available from Ref. [4] is found to be in good
agreement with the current DSMC simulation results.
• Simulation on the blunt cone configuration shows reduction in heat-flux and
shear stress with the addition of chemically reactive model. However, variation
in pressure is considerably small.
• Thick shockwave is the characteristic of the rarefied region. As the degree of
rarefaction increases the shockwave becomes more thick and merges with the
boundary layer (Fig. 4) and as the rarefaction decreases shock wave starts to
move away from the body (Fig. 6).
References
1. White C, Borg MK, Scanlon TJ, Longshaw SM, John B, Emerson DR (2017) dsmcFoam+, An
OpenFOAM based direct simulation monte carlo solver
2. Bird GA (2011) The Q-K model for gas-phase chemical reaction rates
3. Liechty DH, Lewis MJ (2011) Extension of a kinetic theory approach for computing chemicalreaction rates to reactions with charged particles
4. Moss JN, Dogra VK, Hash DB, Price JM (1995) Comparison of DSMC and experimental results
for hypersonic external flows