M eslami - graduate student shiraz university
M.M tavakol - graduate student shiraz university
k jafarpur - associate professor

Calculation of natural convection heat transfer from isothermal bodies at very small values of rayleigh number (Ra) is of great importance in different fields of science and engineering . In the present study three isothermal cylinders beneath an adiabatic wall is considered at nearly zero Ra.

Iso thermal cylinder, adiabatic wall , panel method, conduction limit.