Local and total Nusselt numbers were calculated for a potential flow a
cross a flat plate for the case of large or moderate Peclet numbers (P
e). The method of solution is based on multiple applications of the Wi
ener-Hopf method by solving the integral equation for the power source
function. Conformal transforms provide Nusselt numbers for cylinders
of various cross sections. The accuracy of the method is on the order
of exp(-2Pe).