Drag and heat transfer closures for realistic numerically generated random open-cell solid foams using an immersed boundary method

S. Das, S. Sneijders, N.G. Deen, J.A.M. Kuipers

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9 Citations (Scopus)
130 Downloads (Pure)

Abstract

In this paper, we apply a novel immersed boundary method to simulate pore-scale level fluid flow and convective heat transfer in realistic numerically generated open-cell solid foams in a Cartesian computational domain. Five different periodic foam samples of varying porosities (ε=[0.877,0.948]) are generated by numerically mimicking the actual foam formation process (minimizing surface area). The step-by-step procedure for generating the periodic foam geometries is presented. The specific surface areas of the generated foams of different porosities are compared with real foam geometries showing a reasonable agreement. The Reynolds number (Re) is varied from Re≈0 (creeping flow) to Re≈500, and finally drag and Nusselt correlations have been proposed. A detailed analysis is presented on the local velocity and temperature field for the fluid-solid interaction in a complex cellular porous medium.

Original languageEnglish
Pages (from-to)260-274
Number of pages15
JournalChemical Engineering Science
Volume183
DOIs
Publication statusPublished - 29 Jun 2018

Fingerprint

Drag
Foams
Heat transfer
Porosity
Geometry
Specific surface area
Porous materials
Flow of fluids
Temperature distribution
Reynolds number
Fluids

Keywords

  • Cellular porous media
  • Drag closure
  • Heat transfer closure
  • Immersed boundary method
  • Open-cell solid foams
  • Periodic boundary treatment

Cite this

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title = "Drag and heat transfer closures for realistic numerically generated random open-cell solid foams using an immersed boundary method",
abstract = "In this paper, we apply a novel immersed boundary method to simulate pore-scale level fluid flow and convective heat transfer in realistic numerically generated open-cell solid foams in a Cartesian computational domain. Five different periodic foam samples of varying porosities (ε=[0.877,0.948]) are generated by numerically mimicking the actual foam formation process (minimizing surface area). The step-by-step procedure for generating the periodic foam geometries is presented. The specific surface areas of the generated foams of different porosities are compared with real foam geometries showing a reasonable agreement. The Reynolds number (Re) is varied from Re≈0 (creeping flow) to Re≈500, and finally drag and Nusselt correlations have been proposed. A detailed analysis is presented on the local velocity and temperature field for the fluid-solid interaction in a complex cellular porous medium.",
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Drag and heat transfer closures for realistic numerically generated random open-cell solid foams using an immersed boundary method. / Das, S.; Sneijders, S.; Deen, N.G.; Kuipers, J.A.M.

In: Chemical Engineering Science, Vol. 183, 29.06.2018, p. 260-274.

Research output: Contribution to journalArticleAcademicpeer-review

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T1 - Drag and heat transfer closures for realistic numerically generated random open-cell solid foams using an immersed boundary method

AU - Das, S.

AU - Sneijders, S.

AU - Deen, N.G.

AU - Kuipers, J.A.M.

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N2 - In this paper, we apply a novel immersed boundary method to simulate pore-scale level fluid flow and convective heat transfer in realistic numerically generated open-cell solid foams in a Cartesian computational domain. Five different periodic foam samples of varying porosities (ε=[0.877,0.948]) are generated by numerically mimicking the actual foam formation process (minimizing surface area). The step-by-step procedure for generating the periodic foam geometries is presented. The specific surface areas of the generated foams of different porosities are compared with real foam geometries showing a reasonable agreement. The Reynolds number (Re) is varied from Re≈0 (creeping flow) to Re≈500, and finally drag and Nusselt correlations have been proposed. A detailed analysis is presented on the local velocity and temperature field for the fluid-solid interaction in a complex cellular porous medium.

AB - In this paper, we apply a novel immersed boundary method to simulate pore-scale level fluid flow and convective heat transfer in realistic numerically generated open-cell solid foams in a Cartesian computational domain. Five different periodic foam samples of varying porosities (ε=[0.877,0.948]) are generated by numerically mimicking the actual foam formation process (minimizing surface area). The step-by-step procedure for generating the periodic foam geometries is presented. The specific surface areas of the generated foams of different porosities are compared with real foam geometries showing a reasonable agreement. The Reynolds number (Re) is varied from Re≈0 (creeping flow) to Re≈500, and finally drag and Nusselt correlations have been proposed. A detailed analysis is presented on the local velocity and temperature field for the fluid-solid interaction in a complex cellular porous medium.

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