Conjugate free convection above a heated finite horizontal flat plate embedded in a porous medium

Vaszi, A.Z.; Elliott, L.; Ingham, D.B.; Pop, I.

doi:10.1016/s0017-9310(02)00002-9

Cited by 11 publications

(10 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is established that the presence of a solid strip with heat generation can modify the temperature profile substantially in the porous medium (Mendez et al 2002). It is reported that the reduction in aspect ratio by 25 % in a horizontal plate kept below the porous medium leads to 30-45 % reduction in temperature rise in the solid plate for Rayleigh number ranging from 1 to 1000 (Vaszi et al 2001), and the plate thickness plays an important role in boundary layer formation (Vaszi et al 2002). It is also noticed that in case of a solid cylindrical fin in porous medium, the local heat transfer coefficient and the local heat flux show a more gradual drop along the rounded tip as the aspect ratio of the fin becomes larger (Vaszi et al 2004).…”

Section: Introductionmentioning

confidence: 99%

Conjugate Heat Transfer in an Annulus with Porous Medium Fixed Between Solids

et al. 2015

View full text Add to dashboard Cite

Conjugate heat transfer is an important area of research which has been in demand due to its applications related to various scientific and engineering fields. The current research is focused to study the heat transfer in a porous medium sandwiched between two solid walls of an annular vertical cylinder. The prime focus of the current study was to evaluate the effect of solid wall thickness, the influence of variable wall thickness at inner and the outer radius, the conductivity ratio and the solid wall conductivity ratio on the heat transfer characteristics of the porous medium. The surface at inner and outer radii of the annulus is maintained isothermally at T h and T ∞ such that T h > T ∞ . The governing partial differential equations for the conjugate heat transfer in porous medium and that of solid walls are converted into a set of algebraic equations with the help of finite element method and then solved simultaneously to predict the temperature variation in the solid wall as well as the porous region of the annular domain. HHeight of cylinder (m)Permeability of the porous medium (m 2 ) KrThermal conductivity ratio = k s1 /k p Kr o Thermal conductivity ratio = k s2 /k p KrsThermal conductivity ratio of two solids k s1 /k s2 N u Average Nusselt number r, z Cylindrical coordinates (m) r , z Non-dimensional coordinates RaRayleigh number RrRadius ratio = (r o − r i )/r i T, TDimensional ( • C) and non-dimensional temperature, respectively u, w Velocity in r and z directions, respectively (m/s)

show abstract

Section: Introductionmentioning

confidence: 99%

Conjugate Heat Transfer in an Annulus with Porous Medium Fixed Between Solids

et al. 2015

View full text Add to dashboard Cite

show abstract

“…This numerical procedure follows closely the method described by Vaszi et al [13], which was also employed by Vaszi et al [9]. Vaszi et al [13] provided a detailed description of the method, and therefore details are not repeated here.…”

Section: Methods Of Solutionmentioning

confidence: 99%

Conjugate free convection from a vertical plate fin with a rounded tip embedded in a porous medium

Vaszi

Elliott

Ingham

et al. 2004

International Journal of Heat and Mass Transfer

Self Cite

View full text Add to dashboard Cite

“…The available literature on numerically modelling conjugate heat transfer between fluid-saturated porous media and solid walls may fall into two categories: (1) solid walls embedded in fluid-saturated porous media and (2) fluid-saturated porous media bounded by solid walls. The industrial background of the former category is heat transfer enhancement of a fin [15,16], while the latter is a popularly adopted research prototype for solar collectors, energy storage systems filled by phase-change materials and so on [17][18][19]. A latest review on this topic was presented in Ref.…”

Section: Introductionmentioning

confidence: 99%

“…Refs. [15][16][17][18][19]), due to the balance between necessary macroscopic information and computational cost [20].…”

Section: Introductionmentioning

confidence: 99%

“…Although solving conjugate heat transfer problems numerically is a great breakthrough in thermal science and engineering, it is still a great challenge for the current state-of-art numerical techniques to address conjugate heat transfer problems with complicated interfaces [3,9]. The difficulty stems from the fact that, for the conventional numerical approaches, specific treatments are required to guarantee the continuity of temperature profile and heat flux across the interfaces between fluid-saturated porous media and solid walls [2,3,[15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Simulation of conjugate heat transfer between fluid-saturated porous media and solid wall

Chen

2018

International Journal of Thermal Sciences

View full text Add to dashboard Cite

Conjugate heat transfer between fluid-saturated porous media and solid walls is an important issue in many disciplines. For traditional numerical techniques, it is still a great challenge to treat conjugate problems, especially with complicated interfaces.In the present work, a new numerical approach, based on the lattice Boltzmann (LB) method, is proposed to address such challenge. In the present approach no explicit special treatment on coupled interfaces between fluid-saturated porous media and solid walls is required. Moreover, no additional source term, which exists in the available LB models, is required. It can guarantee that the simplicity, accuracy and stability of the present model are better than those models. The accuracy and re-

show abstract

Conjugate free convection above a heated finite horizontal flat plate embedded in a porous medium

Cited by 11 publications

References 17 publications

Conjugate Heat Transfer in an Annulus with Porous Medium Fixed Between Solids

Conjugate Heat Transfer in an Annulus with Porous Medium Fixed Between Solids

Conjugate free convection from a vertical plate fin with a rounded tip embedded in a porous medium

Simulation of conjugate heat transfer between fluid-saturated porous media and solid wall

Contact Info

Product

Resources

About