Volume 18, Issue 8 (12-2018)
Modares Mechanical Engineering 2018, 18(8): 19-29 |
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Hosseini Moghaddam S A, iranmanesh M, Jahanshahi Javaran E, Zadehgol A. Application of innovative entropic lattice Boltzmann method for multiphase fluid flow through porous media. Modares Mechanical Engineering 2018; 18 (8) :19-29
URL: http://mme.modares.ac.ir/article-15-16529-en.html
URL: http://mme.modares.ac.ir/article-15-16529-en.html
Seyed Amir Hosseini Moghaddam1 
, Masoud Iranmanesh * 2, Ebrahim Jahanshahi Javaran3 , Abed Zadehgol4
, Masoud Iranmanesh * 2, Ebrahim Jahanshahi Javaran3 , Abed Zadehgol4
1- Department of Energy, Institute of Science and High Technology and Environmental Sciences Graduate University of Advanced Technology, Kerman, Iran.
2- faculty member of energy dept. kerman graduate university of advanced technology
3- faculty
4- Graduate University of Advanced Technology, Kerman, Iran
2- faculty member of energy dept. kerman graduate university of advanced technology
3- faculty
4- Graduate University of Advanced Technology, Kerman, Iran
Abstract: (7135 Views)
In this research work, using the recently introduced entropic constant speed kinetic model and employing the Pseudo-Potential model of Shan and Chen (SC), two phase flow of incompressible and immiscible fluids through porous media is studied. Applications of the entropic kinetic models in simulating multi-phase and multi-component flows have been thoroughly investigated, during the past decade. Lack of an entropy function, in a kinetics based model, implies that the existence of a unique equilibrium state, under all flow conditions and for all positions and times, cannot be guaranteed by the model. Hence, simulation of two multi-phase flows with high density ratios, using the conventional kinetic models (which do not satisfy the second law of thermodynamics) may not yield proper results, due to numerical instabilities. In this research, performing numerical simulations, the accuracy and stability of the recently introduced constant speed kinetic model and the conventional lattice Boltzmann models have been compared with each other. The present simulations include the verification of the Laplace Law and the contact angles and two phase flow through simple channels. In addition to the above, two phase flow in porous media has been simulated and the relative permeability vs wettability has been reported. The obtained results are in excellent agreement with previous results reported by others researchers.
Keywords: Multiphase flow, Entropic kinetic model, Shan-Chen method, Porous media, Relative permeability coefficient
Article Type: Research Article |
Subject:
Aerospace Structures
Received: 2018/02/13 | Accepted: 2018/09/25 | Published: 2018/09/25
Received: 2018/02/13 | Accepted: 2018/09/25 | Published: 2018/09/25
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