# Image-based finite element modeling of air flow and thermal transport in Al-fiber-sintered porous materials

https://mdr.nims.go.jp/datasets/30bea341-0e6e-440e-a311-ec9dea21a1fa

## File

- [20240306_Manuscript_SKAWAI_MMC.pdf](https://mdr.nims.go.jp/filesets/88c37f9d-1d5c-457b-b94e-a7ac107aedac/download) ([Detail](https://mdr.nims.go.jp/filesets/88c37f9d-1d5c-457b-b94e-a7ac107aedac.md))

## Id

30bea341-0e6e-440e-a311-ec9dea21a1fa

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-05-21T05:23:40.920247Z

## Updated at

2024-06-03T02:55:16.305170Z

## Published at

2026-05-09T23:24:40.884427Z

## Doi

https://doi.org/10.48505/nims.4526

## First published url

https://doi.org/10.1016/j.applthermaleng.2024.123375

## Date published

2024-05-09

## Recorded date published

2024-7

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Image-based finite element modeling of air flow and thermal transport in
    Al-fiber-sintered porous materials
  title_type: original
  lang: en

## Description

- description: In this study, the pressure drop and heat transfer in a heat-transfer
    tube filled with a sintered porous medium comprising Al fibers were investigated
    using computational fluid dynamics (CFD) simulations. We reconstructed the sintered
    fibrous porous structure and generated a computational mesh using X-ray computed
    tomography data, and the simulated pressure drop and heat transfer agreed well
    with those reported by Enoki et al. [2021]. The differences in both the form coefficient
    and the permeability between two different samples can be explained from the differences
    in both the specific solid surface area and the porosity. Further, the CFD simulations
    indicated that thermal conduction of the Al solid phase enhanced the heat exchange
    between the air and Al fibers. To examine the effect of solid-phase thermal conduction,
    we generated a model of a heat-transfer tube having an ideal wire mesh structure,
    in which we introduced the interfacial thermal conductivity between Al fibers
    and the inner tube wall as additional factors. We also performed CFD simulations
    with four different shell-region thicknesses and found that even a very narrow
    gap of 5 to 10 μm heavily affected the heat-exchange performance because of the
    low thermal conductivity of the shell region.
  description_type: abstract
  lang: en

## Creator

- name: S. Kawai
  role: author
- name: I. Watanabe
  role: author
  orcid: https://orcid.org/0000-0002-7693-1675
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: image-based finite element analysis
  schema: not_defined
- subject: computational fluid dynamics
  schema: not_defined
- subject: heat transfer device
  schema: not_defined
- subject: fibrous porous media
  schema: not_defined

## Rights

- identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2024-05-09
end_date: 2026-05-10

## Journal

- title: Applied Thermal Engineering
  issn: '13594311'
  volume: '249'
  article_number: '123375'

## Conference



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## Measurement method



## Specimen



## Chemical composition



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## Fileset

- id: 88c37f9d-1d5c-457b-b94e-a7ac107aedac
  filename: 20240306_Manuscript_SKAWAI_MMC.pdf
  content_type: application/pdf
  size: 2956586
  md5: 79315e0a2c4172fc7b07409d8a5ddb5d

## Thumbnail

fileset_id: 88c37f9d-1d5c-457b-b94e-a7ac107aedac
filename: 20240306_Manuscript_SKAWAI_MMC.pdf