Universal Journal of Applied Science(CEASE PUBLICATION) Vol. 5(2), pp. 5 - 10
DOI: 10.13189/ujas.2017.050201
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A Numerical Study on Miscible Viscoelastic Fingering Instability

H. Shokri ^*, M.H. Kayhani , M. Norouzi
Mechanical Engineering Department, Shahrood University of Technology, Iran

ABSTRACT

In this study, the viscoelastic fingering instability of miscible displacement is investigated using computational fluid dynamics (CFD). The Maxwell's model has been used as the constitutive equation of viscoelastic fluid and Hartley transformation (as a spectral method) and fourth-order Adams-Bashforth technique are used to solve the governing equations. The development of the finger structures is discussed using concentration contours and diagrams of transversely average concentration, mixing length and sweep efficiency. It is found that the flow is more stabilized when relaxation time of displacing fluid is increased.

KEYWORDS
Fingering Instability, Viscoelastic Fluid, Spectral Method

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] H. Shokri , M.H. Kayhani , M. Norouzi , "A Numerical Study on Miscible Viscoelastic Fingering Instability," Universal Journal of Applied Science(CEASE PUBLICATION), Vol. 5, No. 2, pp. 5 - 10, 2017. DOI: 10.13189/ujas.2017.050201.

(b). APA Format:
H. Shokri , M.H. Kayhani , M. Norouzi (2017). A Numerical Study on Miscible Viscoelastic Fingering Instability. Universal Journal of Applied Science(CEASE PUBLICATION), 5(2), 5 - 10. DOI: 10.13189/ujas.2017.050201.