An inverted spherical model of an open-cell foam structure

Smorygo, Oleg; Mikutski, Vitali; Marukovich, Alexander; Ilyushchanka, A. Ph.; Sadykov, Vladіslav; Smirnova, Alevtina

doi:10.1016/j.actamat.2011.01.005

Cited by 23 publications

(10 citation statements)

References 27 publications

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“…8). Larger open porosity seems to be the only reason of the more intensive SiC oxidation: the open porosity favors easier oxygen supply to the non-protected SiC particle surfaces as well as much [24]. This is very close to the same parameters of the experimental samples, and similar oxidation rate can be expected.…”

Section: Processes During the Sinteringsupporting

confidence: 80%

Evaluation of SiC-porcelain ceramics as the material for monolithic catalyst supports

et al. 2014

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Mechanical and thermal properties of SiC-porcelain ceramics were studied in the wide SiC content range of 0-95%. Microstructure evolution, shrinkage at sintering, porosity, mechanical strength, elastic modulus, coefficient of thermal expansion (CTE) and thermal conductivity were studied depending on SiC content. The optimal sintering temperature was 1200 ℃, and the maximum mechanical strength corresponded to SiC content of 90%. Parametric evaluation of the ceramic thermal shock resistance revealed its great potential for thermal cycling applications. It was demonstrated that the open-cell foam catalyst supports can be manufactured from SiC-porcelain ceramics by the polyurethane foam replication process.

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Section: Processes During the Sinteringsupporting

confidence: 80%

Evaluation of SiC-porcelain ceramics as the material for monolithic catalyst supports

et al. 2014

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“…Various reports in the literature contain a statement regarding the dependence of these quantities on the geometrical foam parameters, such as the foam structure, cell diameter, porosity and the specific surface [1][2][3]. However, we are not able to conclude unambiguously about the impact of these parameters on the value of permeability.…”

Section: Introductioncontrasting

confidence: 58%

Influence of flow conditions and foam parameters on pressure drop and heat transfer in flow of fluids through channels filled with metal foams

2018

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This paper reports the results of research into air, water and oil flow through pipes filled with open-cell metal foams, which form a material with a considerable potential for application in the design of process equipment. This study applied three metal foams with various geometrical parameters. The objective of the experiments involved the measurement of pressure drop within a relatively large range of the variability of the flow conditions. On the basis of data from the literature and analysis of the results of experiments, an assessment was undertaken concerned with the influence of the geometrical parameters of the foams as well as velocities and fluid properties on the flow regime and pressure drop. The results demonstrate that the theory concerned with the fluid flow through porous media has a limited application with regard to metal foams due to the considerable turbulence of the flow through such foams. If flow occurs in other conditions than laminar regime, the permeability of metal foams is relative not only to the geometrical structure of the foams but also depends on the properties and velocity of the fluid. The present study demonstrated that the assessment of the flow regime can apply the modified Reynolds number in which the characteristics dimension is defined on the basis of the parameters accounting for the geometrical foam structure. Three flow regimes were distinguished – laminar flow, transient Forchheimer and transient Froud flow. The ranges corresponding to the occurrence of the particular flow regimes were subsequently determined.

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“…It is this high porosity, however, which poses a challenge for numerical simulations as the struts between the pores of the foam require a finely resolved mesh [42]. Instead of generating a conforming mesh which can be challenging both in terms of mesh quality and computing time, we borrow an approach used in analytical studies of open-cell foams [43]. Here, an unit cell for an open-cell foam is constructed as the inversion of five overlapping spheres arranged in a hexagonal packing.…”

Section: Application Example: Open-cell Foamsmentioning

confidence: 99%

Robust event-driven particle tracking in complex geometries

Strobl

Bannerman

Pöschel

2020

Computer Physics Communications

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, T. (Accepted/In press). Robust event-driven particle tracking in complex geometries. Computer Physics Communications. General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. ? Users may download and print one copy of any publication from the public portal for the purpose of private study or research. ? You may not further distribute the material or use it for any profit-making activity or commercial gain ? You may freely distribute the URL identifying the publication in the public portal ? Take down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.

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An inverted spherical model of an open-cell foam structure

Cited by 23 publications

References 27 publications

Evaluation of SiC-porcelain ceramics as the material for monolithic catalyst supports

Evaluation of SiC-porcelain ceramics as the material for monolithic catalyst supports

Influence of flow conditions and foam parameters on pressure drop and heat transfer in flow of fluids through channels filled with metal foams

Robust event-driven particle tracking in complex geometries

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