Convective heat transfer

From Thermal-FluidsPedia

The second mode of heat transfer is convection, which occurs between a wall at one temperature and a moving fluid at another temperature. The mechanism of convection heat transfer is a combination of random molecular motion (conduction) and bulk motion (advection) of the fluid. Convective heat transfer depends on many factors including fluid properties, flow velocity, geometric configuration, and any fluid phase change that may occur as a result of heat transfer.

• External Forced Convection

Boundary layer theory, similarity solutions, integral solution, computational methodologies for forced convection, analogies and differences in different transport phenomena and turbulence.

• Internal Forced Convection

Basics, fully-developed flow and heat transfer, thermally developing laminar flow, combined hydrodynamic and thermal entrance effect, developing flow, numerical solutions, forced convection in microchannels, and internal turbulent flow.

• Natural convection

Basics, governing equations, natural convection on a vertical plate, dimensionless paramters, scale analysis, similarity solution for natural convection on a vertical surface, integral solution for laminar and turbulent natural convection, natural convection on inclined and horizontal surfaces, natural convection on cylinders and spheres, free boundary flow, scale analysis, rectangular enclosures, annular space between concentric cylinders and spheres, melting and solidification, instability analysis of natural convection.

• Condensation

Basics, dropwise condensation, filmwise condensation, nongravitational condensate removal, film condensation in porous media, and forced convective condensation.

• Evaporation

Basics, film evaporation, direct contact evaporation, microchannels and porous media.

• Boiling

Classification, pool boiling regimes, nucleate boiling, critical heat flux, transition boiling, minimum heat flux,boiling in porous media, and forced convective boiling.

• Two-Phase Flow

Flow patterns, flow models, forced convective condensation, forced convective boiling, and micro- and minichannels.

• Heat Transfer Correlations

• Related Topics

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References

Faghri, A., Zhang, Y., and Howell, J. R., 2010, Advanced Heat and Mass Transfer, Global Digital Press, Columbia, MO.

Further Reading

External Links