An Investigation of Transition Flow in Porous Media by Event Driven Molecular Dynamics Simulation
| Autor: | Koç, Mustafa, Kandemir, İlyas, Akkaya, Volkan Ramazan |
|---|---|
| Přispěvatelé: | MÜ, Teknoloji Fakültesi, Enerji Sistemleri Mühendisliği Bölümü, Akkaya, Volkan Ramazan |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
event driven molecular dynamic simulation
knudsen number porosity tortuosity permeability viscosity mass flow rate transition regime darcy’s law klinkenberg’s theory Viscosity Transition Regime Mechanical Engineering lcsh:Mechanical engineering and machinery Mass Flow Rate Transition regime Tortuosity Darcy's Law Mass flow rate Knudsen Number Condensed Matter Physics Klinkenberg's Theroy Permeability Physics::Fluid Dynamics Mechanics of Materials Darcy’s law Event driven molecular dynamic simulation lcsh:TJ1-1570 Klinkenberg’s theory Event Driven Molecular Dynamic Simulation Porosity |
| Zdroj: | Journal of Applied Fluid Mechanics, Vol 14, Iss 1, Pp 23-36 (2021) |
| ISSN: | 1735-3572 |
| Popis: | Aim of this study is to investigate the properties of mono-atomic gas flow through the porous medium by using Event-Driven Molecular Dynamics (EDMD) simulation in the transition regime. The molecules and the solid particles forming the porous structure were modelled as hard spheres hence molecule trajectories, collision partners, interaction times and post-collision velocities were calculated deterministically. The porous medium is formed of spherical particles suspended in the middle of the channel and these particles are distributed into the channel in a regular cubic array. Collisions of gas molecules with porous medium were provided by means of the specular reflection boundary condition. A negative pressure boundary condition was applied to the inlet and outlet of the porous media to ensure gas flow. Porosity, solid sphere diameter and Knudsen number (Kn) were initially input to the simulation for different Cases. Thus, the effects of these parameters on mass flow rate, dynamic viscosity, tortuosity and permeability were calculated by EDMD simulation. The results were compared with the literature and were found to be consistent. |
| Databáze: | OpenAIRE |
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