Abstract
The convective regime of filtration combustion of energetic materials in a cocurrent flow of their combustion products is studied using a model with extremely simplified kinetics and heat transfer, which shows instability of the process. It is shown that the more accurate “two‐temperature” model describes a steady‐state regime. In this regime, the gas temperature on the “hot” boundary of the heating zone is well below the combustion temperature, and the solid‐phase temperature is well below the temperature proposed in recent studies on this topic. It is pointed out that the “two‐temperature” approach is unjustified and intragranular nonisothermicity must be taken into account for convective regimes. It is shown that the “three‐temperature” model, which takes into account this effect, does not give a stable steady‐state solution.
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