SIMULATION OF THE DYNAMICS OF AN ELASTIC MEMBRANE IN A GROOVED CHANNEL USING A COMBINED LATTICE BOLTZMANN-IMMERSED BOUNDARY METHOD

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ALIZADEH ASAD; DADVAND ABDOLRAHMAN

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Journal: Modares Mechanical Engineering Year:2016 | Volume:15 | Issue:10 Page(s): 240-248

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Title

SIMULATION OF THE DYNAMICS OF AN ELASTIC MEMBRANE IN A GROOVED CHANNEL USING A COMBINED LATTICE BOLTZMANN-IMMERSED BOUNDARY METHOD

Author(s)

ALIZADEH ASAD | DADVAND ABDOLRAHMAN | Issue Writer Certificate

Keywords

LATTICE BOLTZMANN METHODQ1

IMMERSED BOUNDARY METHODQ1

ELASTIC MEMBRANEQ2

INTERACTIONQ3

GROOVED CHANNELQ2

Abstract

In the current study, the motion and deformation of an ELASTIC MEMBRANE in a two-dimensional channel with and without a groove is simulated using a combined lattice Boltzmann-immersed boundary method. The LATTICE BOLTZMANN METHOD is used to solve the fluid flow equations and the IMMERSED BOUNDARY METHOD is used to incorporate the fluid-membrane INTERACTION. The ELASTIC MEMBRANE is considered as a flexible boundary immersed in the flow domain. In the IMMERSED BOUNDARY METHOD, the membrane is represented in the Lagrangian coordinates while the fluid domain is discretized on a uniform fixed Eulerian grid. The INTERACTION between the fluid and the membrane is modeled using Dirac delta function. The effects of no-slip boundary condition are enforced by addition of a forcing term to the lattice Boltzmann equation. Depending on the flow rate (or Reynolds number), the initial location and stiffness of the ELASTIC MEMBRANE, the size of the groove, the membrane only rotates inside the groove or the flow moves it out of the groove. The results are presented in terms of flow velocity and pressure fields and membrane configuration at different times. Comparison between the present results and the available numerical and experimental ones shows good agreement between them.

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APA: Copy

ALIZADEH, ASAD, & DADVAND, ABDOLRAHMAN. (2016). SIMULATION OF THE DYNAMICS OF AN ELASTIC MEMBRANE IN A GROOVED CHANNEL USING A COMBINED LATTICE BOLTZMANN-IMMERSED BOUNDARY METHOD. MODARES MECHANICAL ENGINEERING, 15(10), 240-248. SID. https://sid.ir/paper/179644/en

Vancouver: Copy

ALIZADEH ASAD, DADVAND ABDOLRAHMAN. SIMULATION OF THE DYNAMICS OF AN ELASTIC MEMBRANE IN A GROOVED CHANNEL USING A COMBINED LATTICE BOLTZMANN-IMMERSED BOUNDARY METHOD. MODARES MECHANICAL ENGINEERING[Internet]. 2016;15(10):240-248. Available from: https://sid.ir/paper/179644/en

IEEE: Copy

ASAD ALIZADEH, and ABDOLRAHMAN DADVAND, “SIMULATION OF THE DYNAMICS OF AN ELASTIC MEMBRANE IN A GROOVED CHANNEL USING A COMBINED LATTICE BOLTZMANN-IMMERSED BOUNDARY METHOD,” MODARES MECHANICAL ENGINEERING, vol. 15, no. 10, pp. 240–248, 2016, [Online]. Available: https://sid.ir/paper/179644/en

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