...Tian Xiao; Liu Lu; Chenlei Yu; Sandra K. S. Boetcher; Xiaohu Yang; Moxiao Li; Tian Jian Lu Coating the hollow ligaments of open-cell (fluid-through) metallic foams (MFs) fabricated via the sintering route with a thin layer of graphene can improve the effective thermal conductivity (ETC) of the foam...

...K. Kiran Kumar; Banjara Kotresha; Kishan Naik The intention of this paper is to present the numerical analysis of thermal performance and exergy transfer through high porosity metal foams filled partially in a horizontal pipe. The heater is embedded in the pipe's circumference and is assigned...

...Assunta Andreozzi; Bernardo Buonomo; Yogesh Jaluria; Oronzio Manca A numerical study on natural convection in an inclined channel partially filled with open metal foam is investigated in two-dimensional laminar and incompressible and steady-state condition. The upper wall is heated at uniform heat...

...Prakash H. Jadhav; N. Gnanasekaran; D. Arumuga Perumal The intent of the current research work is to emphasize the computational modeling of forced convection heat dissipation in the presence of high porosity and thermal conductivity metallic foam in a horizontal pipe for different regimes...

...Vivek Subramaniam Sambamurthy; Srivatsan Madhavan; Prashant Singh; Srinath V. Ekkad Experimental investigation was carried out to study heat transfer and fluid flow in high porosity (93%) thin metal foams (MFs) subjected to array jet impingement, under maximum and intermediate crossflow exit...

...Prashant Singh; Karthik Nithyanandam; Mingyang Zhang; Roop L. Mahajan High-porosity metal foam (MF) is a popular option for high-performance heat exchangers as it offers significantly higher heat transfer participation area per unit volume compared to other convection enhancement cooling methods...

... of this study is to consider the thermal performance of some innovative arrangements in which only certain parts of the tube are covered by metal foam. The combination of Navier–Stokes and Darcy–Brinkman–Forchheimer equations is applied to evaluate the flow field. Governing equations are solved using the finite...

... in the section exposed to the HTF. Figures 4( a ) – 4( c ) represent the solid PCM fraction (dark-gray region) at the end of the 3 h discharging period for different arrangement of heat pipes with metal foam of porosity 0.9 and pore density 10 PPI. The solidification of the PCM is seen to be uniform throughout...

..., which suggests the jet effect can be used effectively even in random fins. Metal foams are of interest for thermal engineering applications such as heat sinks because of their high surface-to-volume ratio and high convective heat transfer coefficients relative to conventional fins. The high heat...

...: Phillip M. Ligrani. 08 11 2011 17 05 2012 3D numerical results are presented to compare the heat transfer augmentation from a plate by using pin fins and metal foams. It is observed that maximizing the inlet velocity and pores per inch maximizes the overall heat transfer rate...

... dispersion model in comparison to a simpler dispersion model commonly used for metallic foams, particularly at high Péclet numbers and for thicker foam blocks. 17 06 2011 26 09 2011 27 09 2011 13 02 2012 13 02 2012 convection flow simulation flow through porous media foams...

... a channel, namely, the case of isothermal hot and cold walls and the case of constant heat flux walls. These exact solutions for the cases of metal foam and air combination reveal that the local thermal equilibrium assumption may hold for the case of isothermal hot and cold walls, but may fail for the case...

...V. Kathare; F. A. Kulacki; Jane H. Davidson Heat transfer measurements for natural convection in superposed metal foam and water layers are reported. Two systems heated at the lower boundary are considered: a water-filled cavity with a foam layer on the heated surface and a water-filled cavity...

...C. Y. Zhao; W. Lu; S. A. Tassou The two-phase flow and boiling heat transfer in horizontal metal-foam filled tubes are experimentally investigated. The results show that the heat transfer is almost doubled by reducing the cell size from 20 ppi to 40 ppi for a given porosity, thanks to more surface...

...Indranil Ghosh High porosity open-cell metal foam is considered to be an attractive choice for compact heat exchanger applications because of its high area density and superior thermal performance. A systematic study has been made in the present article to verify the suitability of the porous...

... issue and the axial conduction issue. Krishnan et al. ( 8 ) have shown recent results achieved by modeling an investment-cast metal foam based on a body-centered cubic array of spheres with a sphere in the center, as well. The solid metal occupies the space not filled by the spheres. The resulting...

... Properties of High Porosity Metal Foams ,” Int. J. Heat Mass Transfer 0017-9310 10.1016/S0017-9310(01)00220-4 , 45 , pp. 1017 – 1031 . Hwang , J. J. , Hwang , G. J. , Yeh , R. H. , and Chao , C. H. , 2002 , “ Measurement of the Interstitial Convection Heat Transfer...

...Indranil Ghosh Forced convection heat transfer in high porosity metal foam, either attached to an isothermal surface or confined between two isothermal plates, has been analyzed, assuming a repetitive simple cubic structure for the foam matrix. The model, in the microscopic level takes account...

.... The reduction in flow outlet height increases the local thermal nonequilibrium condition near the heat-generation surface. porous media metal foam electronic cooling heat transfer heat sink restricted flow outlet Heights of aluminum-foam heat sink and flow outlet Sample no. Type...

...Eric N. Schmierer; Arsalan Razani Many engineering applications require thermal cycling of granular materials. Since these materials generally have poor effective thermal conductivity various techniques have been proposed to improve bed thermal transport. These include insertion of metal foam...