Match the following non-dimensional numbers with the corresponding definitions: Non-dimensional number Definition P. Reynolds number 1. \text{Buoyancy force}/\text{Viscous force} Q. Grashof number 2. \text{Momentum diffusivity}/\text{Thermal diffusivity} R. Nusselt number 3. \text{Inertial force}/\text{Viscous force} S. Prandtl number 4. \text{Convective heat transfer}/\text{Conduction heat transfer}

Correct Answer is : P-3, Q-1, R-4, S-2

GATE Mechanical Engineering (ME) 2020 Shift 1 Solved Paper

Question : 16 of 65

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Match the following non-dimensional numbers with the corresponding definitions:

Non-dimensional number	Definition
P. Reynolds number	1. $\text "Buoyancy force"/\text "Viscous force"$
Q. Grashof number	2. $\text "Momentum diffusivity"/\text "Thermal diffusivity"$
R. Nusselt number	3. $\text "Inertial force"/\text "Viscous force"$
S. Prandtl number	4. $\text "Convective heat transfer"/\text "Conduction heat transfer"$

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Reynolds No.	Inertia force/Viscous force
Grashoff	Buoyant/viscous
Nusselt	Conv. H.T/cond. H.T
Prandtl No.	Momentum diffusivity/thermal diffusivity