关于浮升力增强锅炉系统中湍流换热的研究

The research of buoyancy strengthen theturbulence heat transfer in the boiler system

在锅炉系统中会遇到流体在一个表面加热,而另一个表面近似绝热的环形通道的湍流混合对流。这一问题中由于有浮升力的存在,使湍流换热被强化,从而使能源的利用率提高了。本文应用Fortran程序对锅炉内浮升力增强换热这一问题进行了数值模拟求解。

In the boiler system the problem of mixed convection heat transfer is frequently encountered,in which the fluid flows in an annular vertical passage heated at the inner surface while the outer one is almost adiabatic.About this problem heat transfer is always enhanced due to the effect of buoyancy,so the utilize rate of the energy sources are advanced.FORTRAN program is applied to carry out the simulation of buoyancy strengthen the heat transfer in the boiler system.