Viscous dissipation generation by an incompressible fluid flow through an adiabatic cylinder filled with a porous medium
| Autor: | Leila Zili Ghedira, Boutheina Zallama, S. Ben Nasrallah |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Physics
020209 energy Darcy number Energy Engineering and Power Technology Reynolds number 02 engineering and technology Mechanics Industrial and Manufacturing Engineering Forced convection Physics::Fluid Dynamics symbols.namesake 020303 mechanical engineering & transports Eckert number 0203 mechanical engineering Heat generation 0202 electrical engineering electronic engineering information engineering symbols Compressibility Adiabatic process Porous medium |
| Zdroj: | Applied Thermal Engineering. 103:730-746 |
| ISSN: | 1359-4311 |
| DOI: | 10.1016/j.applthermaleng.2016.04.142 |
| Popis: | A numerical study of viscous dissipation heat generation by an incompressible fluid through an adiabatic cylinder filled with a porous medium is carried using Darcy-extended Brinkman–Forchheimer model and taking into account the porosity variation. The energy transport model is based on the local non-thermal equilibrium assumption with consideration of viscous dissipation effects. Dimensionless equations of the problem are solved numerically. Velocity, viscous dissipation heating and temperature distributions are presented and analyzed. The influence of various parameters on the temperature field and viscous dissipation distribution is investigated and examined throughout this paper. It is found that viscous dissipation resulted in significant generation of heat for lower Reynolds number and Darcy number and for high Eckert number. All of the ranges are implicitly clarified within pertinent maps. The temperature difference between fluid and solid phases is also performed incorporating the effect of various parameters. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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