ESDU 72009:2007

$62.40

Pressure Drop in Ducts Across Round-Wire Gauzes Normal to the Flow

Published By	Publication Date	Number of Pages
ESDU	2007-03	19

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Category: ESDU

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Description

ESDU 72009 enables the pressure drop to be estimated for liquid or gas flow. A reference pressure drop that is a function of gauze porosity is first predicted. An empirical factor corrects that reference pressure drop for the effect of Reynolds number less than 2000 (based on wire diameter); that factor is unity for higher Reynolds numbers. Another empirical factor that is a function of porosity and Mach number corrects the pressure drop in gas flow for compressibility; two forms are given, one of which yields the static pressure drop while the other yields the total pressure drop across the gauze. The data can be applied to square- or rectangular-mesh gauzes. Sources are listed of information on the effect of supersonic flow, choking and inclining the gauze to the flow.

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