What is force convention?

Forced convection is a mechanism, or type of transport, in which fluid motion is generated by an external source (like a pump, fan, suction device, etc.).

What is convection current in science?

A convection current is a process that involves the movement of energy from one place to another. The convection currents tend to move a fluid or gas particles from one place to another. These are created as a result of the differences occurring within the densities and temperature of a specific gas or a fluid.

Is wind natural or forced convection?

The convection caused by winds is natural convection for the earth, but it is forced convection for bodies subjected to the winds since for the body it makes no difference whether the air motion is caused by a fan or by the winds.

What is the difference between free convection & forced convection in what parameter forced & free convection depend?

Convection is classified as natural (or free) and forced convection depending on how the fluid motion is initiated. Whereas in forced convection, the fluid is forced to flow over a surface or in a tube by external means such as a pump or fan.

Where do convection currents occur in nature?

The two largest natural cycles where convection currents occur are the movement of air in the atmosphere and the movement of magma in the earth’s mantle.

What is the driving force of currents in the oceans and atmosphere?

The sun is the driving force of oceanic and atmospheric circulations. It heat the earth unevenly causing convection currents in the air and ocean.

What is convection in simple words?

Definition of convection 1 : the action or process of conveying. 2a : movement in a gas or liquid in which the warmer parts move up and the cooler parts move down convection currents. b : the transfer of heat by convection foods cooked by convection — compare conduction, radiation.

What is difference between natural and forced convection?

The key difference between natural and forced convection is that in natural convection, the motion of the fluid is influenced by natural means whereas, in forced convection, the motion of fluids is influenced by external means.

What are some examples of forced convection?

Forced convection: When external sources such as fans and pumps are used for creating induced convection, it is known as forced convection. Examples of forced convection are using water heaters or geysers for instant heating of water and using a fan on a hot summer day.

What is an example of natural convection?

Convection is of two types: natural and forced. Heated air rising is an example of natural convection. Hot air has a lower density than that of the cooler air in the atmosphere above it and therefore is buoyant; as it rises, however, it loses energy and cools.

What are 5 facts about convection currents?

1) Vertical circulation within a fluid that results from density differences caused by temperature variations. 2) In meteorology, the process in which air, having been warmed close to the ground, rises. 3) Within the Earth, the radiogenic heat release results in convective motions causing tectonic plate movements.