Nanofluid Transport in Porous Media: A Review

Abstract

Convection heat transfer mode is the principal topic in thermal transfer. So, it is the matter of many numerical and experimental studies. In recent years, much attention was given to the use of free/forced/mixed convection heat transfer with nanofluids in geothermal engineering, storage of radioactive nuclear waste, solar collectors, transpiration cooling, performance of cold storage, separation processes in chemical industries, thermal insulation of buildings, filtration, space technology, transport processes in aquifers, nuclear reactor cooling system, groundwater pollution, underground nuclear wastes disposal, geothermal extraction, and fiber insulation, etc, and many researches were reported in this topic. This paper presents a detailed review of the numerical and experimental studies carried out by various researchers in order to obtain enhanced heat transfer in free, forced, and mixed convection by using nanofluids in porous media. Critical information of all studies in three categories (analytical, experimental. and numerical) has been collected.

Numerical investigation of effect of variable viscosity on transient heat transfer over a non-isothermal axisymmetric body: nanoparticle volume fraction-dependent viscosity

“…When > 0 , the surface of the body is maintained at variable wall temperature T w (x) such that T w > T ∞ everywhere and surface volume fraction is maintained at constant value w such that w > ∞ . The geometric configuration function r * (x) is given as and acceleration due to gravity, which is a function of geometry of the body, is given as Using the boundary layer and Boussinesq approximations, the governing equations are represented by a system of coupled nonlinear PDEs and are defined as (1)(2)(3)(4) [14]:…”

“…In fact, lately the nanofluid technology has made an appearance as a new technique to enhance the heat transfer. A review of the application of the nanofluid transport is given in Menni et al [1]. Sheremet et al [2] worked on the unsteady free convection heat transfer characteristics of nanofluid using the mathematical nanofluid model proposed by Buongiorno.…”

Mixed Convection Heat Transfer of Sio2-Water and Alumina-Pao Nano-Lubricants Used in a Mechanical Ball Bearing

“…on the nanofluids heat transfers. Furthermore, recent researchers [79][80][81][82][83][84][85][86][87][88] reviewed the nanofluids behavior in porous media, complex geometries, solar collectors, different channels and in different base fluids which is summarized efficiently for the researchers.…”

Enhanced Heat Transfer by Oil/Multi-Walled Carbon Nano-Tubes Nanofluid

“…Most of these studies were performed for conventional fluid heat-exchangers, where a higher performance was recorded compared to the case without a porous medium. On the other hand, nanofluidic fluxes are modeled in the presence of the porous media [5]. The effect of the thermal and mechanical properties of the fluid, as well as the characteristics of the porous medium, have been the subject of studies, which have shown the effectiveness of combining the two techniques together, i.e.…”