TY - JOUR

T1 - Experimental investigation of pressure-drop characteristics across multi-layer porous metal structures

AU - Oun, Hatem

AU - Kennedy, Andrew R.

N1 - The final publication is available at Springer via http://link.springer.com/article/10.1007Fs10934-014-9863-y

PY - 2014/12

Y1 - 2014/12

N2 - This study investigates the effect of airflow (in the range of 0textendash70 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.

AB - This study investigates the effect of airflow (in the range of 0textendash70 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.

KW - Multi-layer porous structure

KW - High air-velocity

KW - Ergun equation

KW - Thickness effect

KW - Regime transition

U2 - 10.1007/s10934-014-9863-y

DO - 10.1007/s10934-014-9863-y

M3 - Journal article

VL - 21

SP - 1133

EP - 1141

JO - Journal of Porous Materials

JF - Journal of Porous Materials

SN - 1573-4854

IS - 6

ER -