Study on Time-Averaged Turbulent Conservation Equations under Supercritical Condition

The turbulent time-averaged conservation equations of supercritical fluid is obtained by the methods of Reynolds-averaging or mass-averaging based on the Navier-Stokes equations,to study how the transportation of mass and energy of supercritical fluid is effected by the turbulence of thermal property.The result shows that,the turbulent control equations under supercritical condition are similar to that under sub-critical condition,except that there are turbulence terms of thermal property in the equations of turbulence kinetic energy and turbulence eddy dissipation conservation equations.These turbulence terms of thermal property are not ignorable under the condition of supercritical pressure,which having the effect on the turbulence strength of fluid to change the transportation of mass and energy.