Dimensionless Numbers

  • To identify the pertinent dimensionless numbers governing phenonmenon of convective heat transfer and understand their physical significance.

Dimensionless Numbers in Convection

Solved Examples

Solved Example:

81-5-01

The dimensionless number defined by the ratio of inertial force to viscous force is called: (GATE PI 2021)

Correct Answer: D

Solved Example:

81-5-02

Reynolds number is practically the ratio of: (UPRVUNL AE ME July 2021)

Correct Answer: D

Solved Example:

81-5-03

Which of the following is NOT a dimensionless parameter? (ISRO IPRC Tech Asst Mechanical 2016)

Correct Answer: D

Solved Example:

81-5-04

Which of the following is dimensionless? (NPCIL SA/ST ME GJ Nov 2019 Shift-I)

Correct Answer: C