Experimental investigation of pressure-drop characteristics across multi-layer porous metal structures

Oun, Hatem; Kennedy, Andrew R.

Abstract

This study investigates the effect of airflow (in the range of 0–70 m s-1) on the pressure-drop characteristics for a novel multi-layered, nickel-based porous metal, as a function of thickness (affected by sectioning) and density (affected by compression). In addition to generating unique data for these materials, the study highlights the need for precise pinpointing of the different flow regimes (Darcy, Forchheimer and Turbulent) in order to enable accurate determination of the permeability (K) and form drag coefficient (C) defined by the Forchheimer equation and to understand the complex dependence of length-normalised pressure drop on sample thickness.

Citation

Oun, H., & Kennedy, A. R. (in press). Experimental investigation of pressure-drop characteristics across multi-layer porous metal structures. Journal of Porous Materials, 21(6), https://doi.org/10.1007/s10934-014-9863-y

• Journal Article Type: Article
• Acceptance Date: Jun 10, 2014
• Online Publication Date: Oct 19, 2014
• Deposit Date: Jun 28, 2016
• Publicly Available Date: Jun 28, 2016
• Journal: Journal of Porous Materials
• Print ISSN: 1380-2224
• Electronic ISSN: 1573-4854
• Publisher: Springer Verlag
• Peer Reviewed: Peer Reviewed
• Volume: 21
• Issue: 6
• DOI: https://doi.org/10.1007/s10934-014-9863-y
• Keywords: Multi-layer porous structure, High air-velocity, Ergun equation, Thickness effect, Regime transition
• Public URL: https://nottingham-repository.worktribe.com/output/737936
• Publisher URL: http://link.springer.com/article/10.1007%2Fs10934-014-9863-y
• Additional Information: The final publication is available at Springer via http://link.springer.com/article/10.1007%2Fs10934-014-9863-y