Film temperature evaluator uses Film temperature = (Plate Surface Temperature+Free Stream Fluid Temperature)/2 to evaluate the Film temperature, The Film temperature formula is defined as the temperature at the film when the fluid is flowing externally over a flat plate. Film temperature is denoted by Tf symbol.
How to evaluate Film temperature using this online evaluator? To use this online evaluator for Film temperature, enter Plate Surface Temperature (Tw) & Free Stream Fluid Temperature (T∞) and hit the calculate button.