Abstract
Heat transfer due to an axisymmetric laminar gas jet impinging onto a flat solid surface of uniform temperature is studied numerically, taking into account the temperature dependence of all fluid physical properties. Numerical solutions are obtained for the jet Reynolds numbers 200-2000, jet mouth-to-surface distances 1-4 times the jet nozzle diameter, and for helium-4, air, and carbon dioxide. Effects of the temperature dependence of the fluid properties are investigated using various kinds of reference temperatures and a viscosity correction method. A method of estimating the values of the local Nusselt number for temperature-dependent fluid from the constant-property solutions is proposed.
Original language | English |
---|---|
Pages (from-to) | 145-153 |
Number of pages | 9 |
Journal | Wärme- und Stoffübertragung |
Volume | 25 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1990 May 1 |
ASJC Scopus subject areas
- Engineering(all)