Simulation of airflow in lecture rooms
The purpose of this study is to perform simulation of airflow in lecture rooms using Computational Fluid Dynamics (CFD) technique. Two lecture rooms with different location of air-conditioning units are chosen as study fields for measurements and simulation purposes. The air distribution parameters...
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| Main Authors: | , , |
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| Format: | Conference or Workshop Item |
| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/2680/ http://eprints.uthm.edu.my/2680/1/Johnson.pdf |
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| Summary: | The purpose of this study is to perform simulation of airflow in lecture rooms using Computational Fluid
Dynamics (CFD) technique. Two lecture rooms with different location of air-conditioning units are chosen as
study fields for measurements and simulation purposes. The air distribution parameters addressed in this study
are air velocity and air temperature. Measurements were also done on the boundary parameters of the room such
as air-conditioning inlet and outlet conditions. The simulations were performed by using CFX software without
involving occupants. Two types of turbulence models were compared for suitability in lecture room modeling.
Validation of results through linear regression technique was performed using SPSS software. Based on the
stream plots, the zones below the air-conditioning units were identified to have inadequate airflow. In overall, the
RNG k – e Turbulence Model yields better prediction than Reynolds Stress Turbulence Model. Simulation can be
a useful technique to predict air distribution performance in a lecture room for a better thermal environment. |
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