Investigation of fast proceeding thermodynamic, physical and chemical processes in devices of pulsed action

摘要

Numerical simulation of flow non-stationary turbulent structure and heat- and mass transfer in devices of pulsed action at the expansion conditions of perfect gases chemically reacting mixture is presented. In mathematical model the thermo physical properties variability, thermal degradation of wall material, turbulence and chemical reactions interference are allowed. The detailed calculations of local dynamic and scalar parameters in fields behind piston are executed with attraction of statistical turbulent models the second order. Influence of chemical reactions, turbulence, non-stationary on friction and heat- and mass transfer within the scope of conjugate processes is determined. Criteria relationships for calculation of integrated parameters of friction and heat transfer are given.