Numerical investigation on laminar slot-jet impinging on a surface at uniform heat flux in a channel partially filled with a porous medium
| Autor: | Oronzio Manca, Sergio Nardini, Bernardo Buonomo, Sergio Nappo |
|---|---|
| Přispěvatelé: | Buonomo, Bernardo, Manca, Oronzio, Nappo, Sergio, Nardini, Sergio |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Thermal equilibrium
Materials science 020209 energy media_common.quotation_subject channel Laminar flow 02 engineering and technology Mechanics Inertia 01 natural sciences 010305 fluids & plasmas Physics::Fluid Dynamics Impinging jet porous media Energy (all) Heat flux confined slot jet metal foam 0103 physical sciences Thermal Heat transfer 0202 electrical engineering electronic engineering information engineering Porosity Porous medium media_common |
| Popis: | Jet impingement of a cold fluid is an efficient cooling method of a heated surface. Jets employed together with porous media with high porosity and thermal conductibility, such as aluminum foams, allows to improve the heat removal from a heated surface. In the present study, a parallel-plate channel filled partially with a high permeability porous medium and a single slot jet impinging on the porous medium is investigated numerically. The opposite wall to the air slot jet is partially heated at uniform heat flux. The porous medium is modeled using the Brinkman-Forchheimer-extended Darcy model that takes into account viscosity and inertia effects. The analysis in the porous medium is accomplished under local thermal equilibrium conditions and a two-dimensional numerical model is developed to evaluate the hydrodynamic and heat transfer characteristics within the channel. The investigations are carried out for 1 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|