Mixed convection about a cone in a porous medium: The entire regime
The corresponding problem of convective heat transfer in a porous medium has important application such as design of canisters for nuclear waste disposal, nuclear reactor cooling system, geothermal reservoirs, ceramic processing, and filtration processes. The mixed convective heat transfer about a cone embedded in a saturated porous medium is numerically investigated. The surface of the cone is maintained at variable wall temperature (VWT) or variable heat flux (VHF). The transformed governing equations are solved by Keller box method. Numerical results are presented for the dimensionless temperature profiles and the local Nusselt number. Increasing the exponent {lambda} increases the local Nusselt number. As the cone angle parameter m increases, the local Nusselt number increases (decreases) for the case of VWT (VHF). Moreover, as mixed convection parameter {chi}(or {chi}*) varies from 0 (pure free convection) to 1 (pure forced convection), the local Nusselt number decreases initially, reaches a minimum in the intermediate value of {chi} (or {chi}*) and then increases gradually.
- Research Organization:
- Air Force Aeronautical and Technical School, Kaohsiung (TW)
- OSTI ID:
- 20005541
- Journal Information:
- International Communications in Heat and Mass Transfer, Journal Name: International Communications in Heat and Mass Transfer Journal Issue: 7 Vol. 26; ISSN 0735-1933; ISSN IHMTDL
- Country of Publication:
- United States
- Language:
- English
Similar Records
Coupled heat and mass transfer in mixed convection over a wedge with variable wall temperature and concentration in porous media: The entire regime
The effect of uniform lateral mass flux on free convection about a vertical cone embedded in a saturated porous medium