# forced convection

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Related to forced convection: Free convection

## forced convection

[¦fȯrst kən′vek·shən]
(thermodynamics)
Heat convection in which fluid motion is maintained by some external agency.

## forced convection

Heat transfer resulting from the forced circulation of air, water, etc., as by a fan, jet, or pump.
References in periodicals archive ?
The proposed MACB scheme is used in finite-volume form to evaluate convective fluxes with heat transfer in a square cavity for a wide range of Reynolds and Grashof numbers and forced convection around a circular cylinder.
Positive values of the NB_Index indicate that nucleate boiling occurs, owing to the fact that the actual thermal flux is higher than the needed one; on the contrary, negative values of the NB_Index indicate that the actual thermal flux is lower than the needed one and the cooling action is due to forced convection only.
In addition to the aforementioned grid-dependency study, the present simulation results have also been compared against the available results of other authors [29, 30] for the forced convection in Newtonian fluid from heated circular cylinder.
They found that their forced convection formula extrapolated to zero velocity predicts three times their formula for natural convection.
66 m/s) has to be applied when the forced convection is investigated.
Duwairi, "Viscous and Joule heating effects on forced convection flow from radiate isothermal porous surfaces," International Journal of Numerical Methods for Heat and Fluid Flow, vol.
Hence the coefficients in the forced convection Nusselt number expressions during the day are those of Jaffer, (2012).
Therefore, heat transfer in the case of forced convection was not further investigated.
These negative values of the pressure will continue increasing due to the corresponding negative pressure gradient for the cases of pure forced convection (Gr/Re = 0) and the buoyancy-opposed flow cases with negative values of Gr/Re.
Reference [8] discussed the effect of variable viscosity on convective heat transfer in the three different cases of natural convection, mixed convection and forced convection taking fluid viscosity to vary inversely with temperature.
The PVC fill impedes the water's fall, allowing more time for the heat transfer process to occur while stretching the cross sectional area of the water droplet surface against the PVC fill wall layer, allowing forced convection to occur on the water droplets, further removing heat from the water.
The standard model operates reliably over a 0 to 70 degrees C range in an air-cooled or forced convection system.

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