Answer Happy

Q3. (a) (b) (c) What is forced convection? How does it differ from natural convection? Explain. (3 marks) Consider the transfer of heat from a solid plate surface to a layer of a fluid in contact with the plate. When can the heat transfer process through the fluid be called conduction and when is it convection? For what case (conduction or convection) is the rate of heat transfer higher? Explain. (3 marks) For forced convection, discuss how the convection heat transfer coefficient is determined in flows over a flat plate. (4 marks)