Numerical Investigation of Particle Deposition in a Room using Large Eddy Simulation based on Lattice Boltzmann Method

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SAJJADI H.; SALMANZADEH M.; AHMADI G.; JAFARI S.

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Journal Paper

Paper Information

Journal: Journal of Applied and Computational Sciences in Mechanics Year:2019 | Volume:30 | Issue:2 (20) Page(s): 83-94

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Title

Numerical Investigation of Particle Deposition in a Room using Large Eddy Simulation based on Lattice Boltzmann Method

Author(s)

SAJJADI H. | SALMANZADEH M. | AHMADI G. | JAFARI S. | Issue Writer Certificate

Keywords

Lattice Boltzmann MethodQ1

Large Eddy SimulationQ1

Particle DepositionQ1

Shear Improved Smagorinsky ModelQ1

Abstract

In this paper the Multi Relaxation Time Lattice Boltzmann Method in conjunction with the Large Eddy Simulation model was used to study the Particle Deposition in a room with various diameters (10nm-10μ m)and the effect of buoyancy, drag and Brownian forces to Particle Deposition on the different walls of the room has been investigated. The sub-grid scale turbulence effects were simulated through a shear-improved Smagorinsky model. To simulate the Particle Deposition in the room, the particle injection process was initiated with 144 particles injected uniformly at the inlet with the same velocity as the airflow at every 0. 05s; particle injection was stopped after 30s. Therefore, a total of 86400 particles were injected into the room. The present simulation results for the airflow showed good agreement with the experimental data and the earlier numerical results. The simulated results for particle dispersion and deposition showed that the numbers of deposited particles on the walls increases by augmentation of the time. When the particle injection started the concentration in the inlet jet region is more than other zones and that increases in the region far from the inlet by time. Present results will be interesting for designing air condition systems in the office and hospitals rooms.

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APA: Copy

SAJJADI, H., SALMANZADEH, M., AHMADI, G., & JAFARI, S.. (2019). Numerical Investigation of Particle Deposition in a Room using Large Eddy Simulation based on Lattice Boltzmann Method. JOURNAL OF APPLIED AND COMPUTATIONAL SCIENCES IN MECHANICS (JOURNAL OF SCHOOL OF ENGINEERING), 30(2 (20) ), 83-94. SID. https://sid.ir/paper/196229/en

Vancouver: Copy

SAJJADI H., SALMANZADEH M., AHMADI G., JAFARI S.. Numerical Investigation of Particle Deposition in a Room using Large Eddy Simulation based on Lattice Boltzmann Method. JOURNAL OF APPLIED AND COMPUTATIONAL SCIENCES IN MECHANICS (JOURNAL OF SCHOOL OF ENGINEERING)[Internet]. 2019;30(2 (20) ):83-94. Available from: https://sid.ir/paper/196229/en

IEEE: Copy

H. SAJJADI, M. SALMANZADEH, G. AHMADI, and S. JAFARI, “Numerical Investigation of Particle Deposition in a Room using Large Eddy Simulation based on Lattice Boltzmann Method,” JOURNAL OF APPLIED AND COMPUTATIONAL SCIENCES IN MECHANICS (JOURNAL OF SCHOOL OF ENGINEERING), vol. 30, no. 2 (20) , pp. 83–94, 2019, [Online]. Available: https://sid.ir/paper/196229/en

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