Surface heat loss and chemical kinetic response in deflagration-to-detonation transition in microchannels
Wenhu Han, Jin Huang, Gongtian Gu, Cheng Wang, Chung K. Law
Abstract
We examine how heat loss at walls affects the deflagration-to-detonation transition. We find that in the adiabatic case, autoignition near the wall produces fast flames in the boundary layer, while autoignition does not occur in the boundary layer for the case with heat loss at the walls.
Topics & Concepts
Autoignition temperatureDeflagrationDetonationDeflagration to detonation transitionAdiabatic processBoundary layerMechanicsMaterials scienceAdiabatic wallThermodynamicsBoundary (topology)Kinetic energyIgnition systemChemistryClassical mechanicsPhysicsExplosive materialOrganic chemistryMathematical analysisMathematicsCombustion and Detonation ProcessesFire dynamics and safety researchCombustion and flame dynamics