Gas dynamic and force effects of a solid particle in a shock wave in air

Influence of Particle on Gas Detonation by Shock

“…Numerical and analytical data coincided. The calculated temperature values turned out to be slightly (about 5 %) lower than analytically predicted, which is associated with the use of the table equation of state in calculations [13].…”

“…The gas heating caused by particles suspended in a non-reacting gas behind the shock wave front was numerically investigated earlier in Ref. [13]. The temperature fields formed in the vicinity of the particle are visualized.…”

“…This work is a development of the approaches proposed in Ref. [13,14]. Here, the phenomenon of acceleration of ignition in the presence of a particle in mixtures of various mixture compositions is investigated.…”

“…The calculations presented in Ref. [13] showed that the heat absorbed by the particle during a time of the order of the relaxation time of the particle velocity to the flow velocity is much less than the heat additionally released in the flow during the same time due to the deceleration of the flow in the presence of the particle. Therefore, the picture of the temperature field, taking into account the thermal conductivity and heat capacity of the particle, does not significantly change in this time.…”

“…To test the applicability of the code used for calculating temperature fields and other flow parameters, the code was tested on the problem of estimating the maximum heating obtained when the flow completely stops when it flows onto a rigid wall [13]. The results obtained showed good agreement with analytical estimates for an ideal gas [21].…”