Based on the new viewpoint of the interaction between solid deformation and gas leak flow, the mechanism of gas leakage in double deformable coal seam can be understood.

The interaction between gas and particles under different flow regimes, ranging from minimum fluidization to pneumatic transportation, was investigated in a vertical gas-solid flow system.

So, for rapid gas-solid reaction, the interaction between the flow of gas mixture and gas-solid reaction can't be neglected.