Control of Interfacial Instability in Core-Annular Flow

6 Pages Posted: 23 Apr 2019 Last revised: 31 May 2019

See all articles by Nadia Mehidi Bouam

Nadia Mehidi Bouam

University Abderrahmane Mira of Bejaia

Houria Djessas

University Abderrahmane Mira of Bejaia

Amar Djema

University Abderrahmane Mira of Bejaia

Ilhem Benaissa

University Abderrahmane Mira of Bejaia

Date Written: April 26, 2019

Abstract

The subject of this paper is with theoretical description of interfacial wave of core annular flow. An integral model describing the dynamics of long wave length perturbation to a laminar flow for wide range of Reynolds number is derived. The model consists of a system of two evolution equations that describe the developpement of the interface and the flow rate. In order to test the accuracy of the model, marginal stability results are compared with the earlier results of Hickox (1971) and Preziosi (1989), and very good agreement is found. Effects of interfacial tension, viscosity ration, densitiy ratio and thickness ratio on the stability of core-annular flow are analyzed in detail.

Keywords: Core-Annular Flow, Viscous Fluids, Integral Boundary Layer Approach, Capillary Instability

Suggested Citation

Bouam, Nadia Mehidi and Djessas, Houria and Djema, Amar and Benaissa, Ilhem, Control of Interfacial Instability in Core-Annular Flow (April 26, 2019). 2nd National Conference on Computational Fluid Dynamics & Technology 2018 (CFD & Tech 2018). Available at SSRN: https://ssrn.com/abstract=3375596 or http://dx.doi.org/10.2139/ssrn.3375596

Nadia Mehidi Bouam (Contact Author)

University Abderrahmane Mira of Bejaia ( email )

Bejaia
Algeria

Houria Djessas

University Abderrahmane Mira of Bejaia ( email )

Bejaia
Algeria

Amar Djema

University Abderrahmane Mira of Bejaia ( email )

Bejaia
Algeria

Ilhem Benaissa

University Abderrahmane Mira of Bejaia ( email )

Bejaia
Algeria

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