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http://dx.doi.org/10.3795/KSME-B.2013.37.8.759

Experimental Study of Pressure Drop in Compressible Fluid through Porous Media  

Seo, Min Kyo (Hanwha Corporation Defence R&D Center)
Kim, Do Hun (School of Aerospace & Mechanical Engineering, Korea Aerospace Univ.)
Seo, Chan Woo (School of Aerospace & Mechanical Engineering, Korea Aerospace Univ.)
Lee, Seoung Youn (School of Aerospace & Mechanical Engineering, Korea Aerospace Univ.)
Jang, Seok Pil (School of Aerospace & Mechanical Engineering, Korea Aerospace Univ.)
Koo, Jaye (School of Aerospace & Mechanical Engineering, Korea Aerospace Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.37, no.8, 2013 , pp. 759-765 More about this Journal
Abstract
This study proposes the characteristics of the pressure drop in a compressible fluid through porous media for application to a porous injector in a liquid rocket engine in order to improve the uniformity of the drop size distribution and the mixing performance of shear coaxial injectors. The fluid through the porous media is a Non-Darcy flow that shows a Nonlinear relation between the pressure drop and the velocity at high speed and high mass flow rate. The pressure drop of the Non-Darcy flow can be derived using the Forchheimer equation that includes the losses of viscous and inertia resistance. The permeability and Ergun coefficient represented as a function of the pressure drop and pore size can be applied to the porous injector, where the fluid through the porous media is compressible. A generalized correlation between the pressure drop in relation to the pore size was derived.
Keywords
Porous Media; Pressure Drop; Forchheimer Equation; Non-Darcy Flow; Permeability; Ergun Coefficient;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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