AN EMPIRICAL CORRELATION FOR EHD ENHANCED NATURAL CONVECTION HEAT TANSFER ALONG A PLATE SURFACE

摘要

The experiment of ether natural convection heat transfer, along a horizontal plate brass, was performed with an applied uniform electric field. A new empirical correlation was presented for predicating the extent of EHD enhancement of natural convection from heated horizontal plate. This correlation is applicable over a range of electric Rayleigh Numbers from 3x10~4 to 4x10~7 and heat fluxes from 0.5kW/m~2 to 3.5kW/m~2. The error between the experimental data and calculated results is less than 20%. This correlation is suitable only for the liquid ether in some range of heat fluxes.