EFFECTS OF VISCOUS DISSIPATION ON THERMALLY DEVELOPING FORCED CONVECTION IN A POROUS SATURATED CIRCU

• 作 者: Kamel Hooman Alireza Pourshaghaghy Arash Ejlali
• 机 构: Mechanical Engineering Department Bushehr Engineering Faculty,Persian Gulf University,Bushehr,Iran,M
• 出 处: Applied Mathematics and Mechanics(English Edition)
• 发表日期: 2006年05期
• 关键词: forced convection viscous dissipation Brinkman model Darcy number Nusselt number

The viscous dissipation effect on forced convection in a porous saturated circular tube with an isoflux wall is investigated on the basis of the Brinkman flow model. For the thermally developing region, a numerical study is reported while a perturbation analysis is presented to find expressions for the temperature profile and the Nusselt number for the fully developed region. The fully developed Nusselt number found by numerical solution for the developing region is compared with that of asymptotic analysis and a good degree of agreement is observed.

The viscous dissipation effect on forced convection in a porous saturated circular tube with an isoflux wall is investigated on the basis of the Brinkman flow model. For the thermally developing region, a numerical study is reported while a perturbation analysis is presented to find expressions for the temperature profile and the Nusselt number for the fully developed region. The fully developed Nusselt number found by numerical solution for the developing region is compared with that of asymptotic analysis and a good degree of agreement is observed.