Acta Mechanica Slovaca 2014, 18(1):64-70 | DOI: 10.21496/ams.2014.009

CFD Analysis of the Influence of Meteorological Conditions on Motion of Ammonia

Ondřej Zavila1*, Marian Bojko2, Milada Kozubková2, Pavel Danihelka3, Barbora Baudišová3, Lenka Maléřová4, Mária Čarnogurská5
1 Department of Fire Protection, VSB - Technical University of Ostrava, Lumírova 13/630, Ostrava - Výškovice,70030, Czech Republic
2 Department of Hydrodynamics and Hydraulic Equipment, VSB - Technical University of Ostrava, 17. listopadu 15/2172, Ostrava - Poruba, 708 00, Czech Republic
3 Energy Research Center Innovation for Efficiency and Environment, VSB - Technical University of Ostrava, 17. listopadu 15/2172, Ostrava - Poruba, 708 00, Czech Republic
4 Department of Civil Protection, VSB - Technical University of Ostrava, Lumírova 13/630, Ostrava - Výškovice, 700 30, Czech Republic
5 Department of Power Engineering, Technical University of Košice, Faculty of Mechanical Engineering, Vysokoškolská 4, 042 00 Košice

The article presents the results of a numerical CFD model of gas ammonia plume motion and dispersion after an accidental release from a real ice stadium situated in an urban area. The CFD analysis was performed using the ANSYS Fluent 14.0 for two seasons and eight wind directions. Sixteen tasks emerged, the results of which can define the influence of meteorological conditions (wind direction, wind speed, temperature, etc.) and surrounding buildings on the motion and dispersion of pollutant plume. The simulation was performed with real local meteorological data. The numerical model had been verified by tasks performed in a low-speed wind tunnel. The results show that the influence of meteorological conditions, especially the influence of calendar seasons, on the pollutant plume propagation can be very pronounced. Principles and conclusions drawn from this and similar analyses may have great benefits for emergency planning in complex urban areas.

Keywords: CFD; model; gas; Pollutant; Gravitational forces; Ice stadium

Published: March 31, 2014  Show citation

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Zavila, O., Bojko, M., Kozubková, M., Danihelka, P., Baudišová, B., Maléřová, L., & Čarnogurská, M. (2014). CFD Analysis of the Influence of Meteorological Conditions on Motion of Ammonia. Acta Mechanica Slovaca, 18(1), 64-70. doi: 10.21496/ams.2014.009
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    References

    1. Czech Hydrometeorological Institute. Meteorology, from http://www.chmi.cz/,31.01.2014.
    2. Bojko, M. (2008). Guide for Training of Flow Modeling - FLUENT. VSB - Technical University of Ostrava, Ostrava.
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    7. Zavila, O. (2012). Physical Modelling of Gas Pollutant Motion in the Atmosphere. Edited by C. Liu, Advances in Modeling of Fluid Dynamics. Rijeka, pp. 51-78. Go to original source...

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