1. What are fundamental dimensions? Express thermal resistance and heat transfer coefficient in fundamental dimensions. 2. Explain the principle of dimensional homogeneity. How is it utilised in...

1. What are fundamental dimensions? Express thermal resistance and heat transfer coefficient in fundamental dimensions.

2. Explain the principle of dimensional homogeneity. How is it utilised in deriving the dimensionless groups?

3. Explain Rayleigh’s method. How is it applied in deriving the functional relationship of pressure drop of a fluid per unit area of the inside surface of a pipe.