Heat transfer in the flow of a cold, axisymmetric vertical liquid jet against a hot, horizontal plate

摘要

The paper considers heat transfer characteristics of thin film flow over ahot horizontal flat plate resulting from a cold vertical jet of liquid fallingonto the surface. A numerical solution of high accuracy is obtained for largeReynolds numbers using the modified Keller box method. For the flat plate,solutions for axisymmetric jets are obtained. In a parallel approximationtheory an advanced polynomial approximation for the velocity and temperaturedistribution is employed and results are good agreement with those obtainedusing a simple Pohlhausen polynomial and the numerical solutions.