Working Paper Article Version 2 This version is not peer-reviewed

Some New Light on the Study of Fluid Flow in Closed Conduits: An Experimental Protocol to Identify the Value of a Misconstrued Constant

Version 1 : Received: 29 May 2019 / Approved: 30 May 2019 / Online: 30 May 2019 (10:41:36 CEST)
Version 2 : Received: 5 July 2019 / Approved: 9 July 2019 / Online: 9 July 2019 (05:07:49 CEST)

How to cite: Quinn, H. Some New Light on the Study of Fluid Flow in Closed Conduits: An Experimental Protocol to Identify the Value of a Misconstrued Constant. Preprints 2019, 2019050367 Quinn, H. Some New Light on the Study of Fluid Flow in Closed Conduits: An Experimental Protocol to Identify the Value of a Misconstrued Constant. Preprints 2019, 2019050367

Abstract

In this paper, the experimental protocol which we disclose is designed to identify the values for both the constant in the Kozeny/Carman model, which relates to the linear component of permeability, and the variable kinetic coefficient in the newly minted Q- modified Ergun model, which relates to the non-linear components of permeability, without involving any new theoretical development. Moreover, kinetic contributions to measured pressure gradient, which are not accounted for in some currently accepted empirical fluid flow equations, such as Poiseuille’s for flow in empty conduits and Kozeny/Carman for flow in packed conduits, but which nevertheless contribute to measured pressure drop and thus hamper the identification of the value of the constant relative to the laminar component, are captured and lumped together into a single variable kinetic parameter-the kinetic coefficient.

Keywords

bed permeability; Kozeny/Carman; Ergun; friction factor; porosity; UHPLC

Subject

Physical Sciences, Fluids and Plasmas Physics

Comments (1)

Comment 1
Received: 9 July 2019
Commenter: Hubert Quinn
Commenter's Conflict of Interests: Author
Comment: A revised abstract to more accurately describe the distinguishing features of the paper, particularly as it pertains to conventional wisdom. This newly written abstract will provide more insight on the need to explore in more detail the concepts which drive the relationship between flow and pressure and expecially those due to kinetic considerations.
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