Numerical Simulation of 3-D Pollution Propagated from a Gaseous Source Through ‎Indoor Space by Applying Pressure Zonal Model

Authors

1 Scientific Member of Shahid Chamran University of Ahvaz

2 Shahid Chamran University

Abstract

Simulating the distribution of emissions in indoor spaces is usually done using very time-consuming and costly ‎computational fluid dynamics methods. In this paper, in order to achieve a suitable accuracy and high-speed method for ‎simulating three-dimensional emission propagation in a room due to a gaseous pollution source, a pressure version of the ‎zonal method has been developed. To demonstrate the capabilities of this developing method, two problems of the air ‎emission within a room have been investigated. At the first problem, for validating the results of this research, the emission ‎simulation through contaminated air into a room with dimension of 3×4×2.5 m via an air-conditioning gate mounted on the ‎wall near the ceiling is done and the results have been compared with the experimental data and the results of the numerical ‎solution of Navier-Stocks Equations. According to this comparison, the percentage of average error between the present ‎results and the experimental data is 26.8 and also the percentage of average error between the present results and the results ‎of numerical solution is 10. After that, considering both constant and instantaneous gaseous pollution sources in a room with ‎dimensions of 3×4×3 m, pollution distributions in the room have been evaluated. According to the results of this research, ‎this zonal method can obtain acceptable results in far less time than those of the experimental and computational fluid ‎dynamics methods. Therefore, this method can be efficient for considering time-consuming environmental problems.‎

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References

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Journal of Solid and Fluid Mechanics
Volume 8, Issue 1
April 2018
Pages 99-109

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