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  • Tailoring the pressure drop Hatem

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

Research output: Contribution to journalJournal articlepeer-review

Published
<mark>Journal publication date</mark>12/2015
<mark>Journal</mark>Journal of Porous Materials
Issue number6
Volume22
Number of pages7
Pages (from-to)1627-1633
Publication StatusPublished
Early online date6/08/15
<mark>Original language</mark>English

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 (0textendash50 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.

Bibliographic note

The final publication is available via Springer at http://link.springer.com/article/10.1007Fs10934-015-0046-2