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A New Method for Numerical Calculation of Pressure Gradient of Unsteady Flow of a Viscoelastic Fluid in Eccentric Annulus

Authors
Nan Li
Corresponding Author
Nan Li
Available Online July 2015.
DOI
10.2991/lemcs-15.2015.321How to use a DOI?
Keywords
Pressure gradient; Unsteady flow; Viscoelastic fluid; Eccentric annulus; Numerical calculation
Abstract

Finite Volume Method (FVM) was used to discrete governing equations of unsteady flow of second-order fluid with variable coefficients in eccentric annulus with the inner cylinder reciprocating axially, in which a fully implicit scheme was taken on time integral, and Alternating Direction Implicit (ADI) method to solve the discrete equation group. Using HPAM aqueous solution, the numerically calculated pressure gradients were compared with the experimentally measured ones, and coincidences of the comparisons were compared with those calculated by using the other two old methods. The results show that the new method presented is testified to be correct and the coincidences between the calculated pressure gradients and the measured ones, using the new method, are better than those using the old methods; moreover, the numerical calculating procedure of the new method is much more simple and convenient and calculating speed is faster. This study is of certain significance in practical engineering for optimizing the working parameters of beam pumping unit and the energy saving of production system of the unit.

Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the International Conference on Logistics, Engineering, Management and Computer Science
Series
Advances in Intelligent Systems Research
Publication Date
July 2015
ISBN
10.2991/lemcs-15.2015.321
ISSN
1951-6851
DOI
10.2991/lemcs-15.2015.321How to use a DOI?
Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

risenwbib
TY  - CONF
AU  - Nan Li
PY  - 2015/07
DA  - 2015/07
TI  - A New Method for Numerical Calculation of Pressure Gradient of Unsteady Flow of a Viscoelastic Fluid in Eccentric Annulus
BT  - Proceedings of the International Conference on Logistics, Engineering, Management and Computer Science
PB  - Atlantis Press
SP  - 1612
EP  - 1615
SN  - 1951-6851
UR  - https://doi.org/10.2991/lemcs-15.2015.321
DO  - 10.2991/lemcs-15.2015.321
ID  - Li2015/07
ER  -