natural convection

natural convection

[′nach·rəl kən′vek·shən]
(thermodynamics)
Convection in which fluid motion results entirely from the presence of a hot body in the fluid, causing temperature and hence density gradients to develop, so that the fluid moves under the influence of gravity. Also known as free convection.

natural convection

The convection resulting from the flow of air caused by temperature differences in an enclosed space, as opposed to the flow of air caused by a fan. Also known as free convection.
References in periodicals archive ?
Using natural convection, air flows through the solar heater and drying cabinet and the humid air passes out through the top vent of drying cabinet.
Natural convection in nanofluids is one of the most extensively analyzed configurations because of its relevance in various engineering systems [5, 6].
Air currents caused by natural convection (buoyancy effect).
Water circulates by natural convection and shaves 20 degrees C off peak daytime temperature.
converts the layer of liquid in the bottom of the container into steam that circulates within its shouldered design to create natural convection for fast, even cooking without boiling away the nutrients or combining flavors, add officials for the Fremont, Neb.
The topics include comparing the performance of copper oxide nanofluid with water in electronic cooling, preparing and characterizing surfactant-coated cerium-zirconium nanoparticles and nanofuel, the boundary-layer flow of a nanofluid past a stretching sheet under uniform heat and mass flux, the effect of adding aluminum nanoparticles on the cooling performance and quench severity of water during immersion quenching, and using ultrasound thermometry to study natural convection in opaque nanofluids.
The other scope of the conducted investigation focuses on heat exchange between the outdoor air and the surface of enclosures and as well as on natural convection in air space and fibrous thermal-insulating materials, i.
offers a solution to remove dampness effectively in any enclosed space through the use of heat and natural convection.
The main hypothesis was that the design parameters of thermal management of outdoor LED lighting systems would vary greatly between different geographical locations, and that selecting global and general design parameters such as an ambient temperature of 50 [degrees]C, or assuming natural convection with no wind, would not be reflective of actual conditions.
The proposed local pressure-velocity coupling algorithm is tested on de Vahl Davis benchmark test [9] and tall cavity, natural convection in the porous media [10], double diffusive natural convection and melting of a pure material driven by a natural convection.
Among others, Moulic and Yao [18] studied natural convection along a wavy surface with uniform heat flux.