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When the work is done to blow or pump the fluid, it is said to be ____________ convection.

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When the work is done to blow or pump the fluid, it is said to be ____________ convection.

(a) natural

(b) forced

(c) unpredictable

(d) none of the mentioned

The question was asked by my college professor while I was bunking the class.

Asked question is from Engine Heat Transfer in chapter Heat Rejection and Cooling of IC Engine

1 Answer

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by (65.4k points)

The correct answer is:

(b) forced

Forced convection occurs when a fluid (liquid or gas) is actively moved or pumped by an external force, such as a fan or pump. In an engine cooling system, for example, a water pump or a fan is used to circulate the coolant through the system, enhancing heat transfer. This is in contrast to natural convection, where the fluid movement is caused by differences in temperature and density without any external force.

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