Question

The ratio of the actual and perfectly guided values of the whirl components at the exit is known as

• A. solidity factor
• B. diffusion factor
• C. whirling factor
• D. slip factor

Hint:

Slip factor<1 indicates losses due to flow deviation in impellers.

Answer 1

The Correct Option is D

The ratio of the actual and perfectly guided values of the whirl components at the exit is known as the slip factor. In turbomachinery, the slip factor is a crucial parameter used to determine the deviation of flow due to imperfections in blade geometry or friction effects. It quantifies the reduction in tangential component of velocity as the fluid exits the impeller or rotor due to these real-world factors. Therefore, among the options provided, the correct answer is slip factor.