Answer :

Solution :

Different dimensionless numbers:

• $WeberNumber=\frac{Inertiaforce}{Surfacetensionforce}$
• $Reynol{d}^{\prime }snumber=\frac{Inertiaforce}{Viscousforce}$
• $Machnumber=\frac{Inertiaforce}{Elasticforce}$
• $Eule{r}^{\prime }snumber=\frac{Inertiaforce}{Pressureforce}$
• $Froudenumber=\frac{Inertiaforce}{Gravityforce}$
• Biot number  → Ratio of internal thermal resistance to boundary layer thermal resistance
• Grashof number  → Ratio of buoyancy to viscous force
• Prandtl number  → Ratio of momentum diffusivity (ν) and thermal diffusivity (α). Pr =ν/α 
• Reynolds number  → Ratio of inertia force to viscous force
• Nusselt number → Ratio of Convective heat transfer to Conduction heat transfer
• $Nu=\frac{h{L}_c}{k}$