Tailoring the pressure-drop in multi-layered open-cell porous inconel structures

Oun, Hatem and Kennedy, Andrew R. (2015) Tailoring the pressure-drop in multi-layered open-cell porous inconel structures. Journal of Porous Materials, 22 (6). pp. 1627-1633. ISSN 1573-4854

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Abstract

This study investigates the pressure-drop behaviour associated with airflow through bulk and structurally tailored multi-layered, open-cell porous Inconel structures over a wide airflow velocity range (0–50 m s-1). The effect of airflow velocity on the pressure-drop behaviour as a function of the sample thickness is presented and related to the flow behaviour corresponding to the relevant flow regimes (Darcy, Forchheimer, Turbulent and Postturbulent). Entrance effects are highlighted as a source of the pressure-drop increase for porous structures with air gaps, regardless of their sizes, as long as they are larger than those generated by loosely-stacked structures. The pressure-drops for gapped porous structures and the mathematical-summation of the pressure drop for the corresponding individual components, were in very good agreement, at lower airflow velocities. The potential for mass-efficient porous structures, providing a high pressure drop, was demonstrated using multiple thin porous laminates separated by air gaps.

Item Type: Article
Additional Information: The final publication is available via Springer at http://link.springer.com/article/10.1007%2Fs10934-015-0046-2
Keywords: Single-phase flow ; Inconel multi-layer porous structures ; Thickness effect ; Material-efficient structures ; Air gap effect
Schools/Departments: University of Nottingham UK Campus > Faculty of Engineering > Department of Mechanical, Materials and Manufacturing Engineering
Identification Number: https://doi.org/10.1007/s10934-015-0046-2
Depositing User: Eprints, Support
Date Deposited: 28 Jun 2016 14:35
Last Modified: 29 Sep 2016 12:21
URI: http://eprints.nottingham.ac.uk/id/eprint/34448

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