Paper Title:
Calculation Domain and Boundary Conditions for Push-Pull Ventilation
  Abstract

CFD simulation is a useful tool for studying. However, in reality there are often complex, unsteady air flow patterns and large geometry domain and complex boundary conditions which are very difficult to totally take into consideration in the simulations. So sometimes we made the calculation domain not the same with geometry domain and simplified the boundary conditions. In this paper, five cases were made to study the calculation domain and boundary conditions for push-pull ventilation. According to the analyses and calculations the walls with windows and door closed setting for wall boundary conditions were not correct. On that basis cracks added, and the boundary conditions were pressure-inlet, and the pressure was zero. The calculation domain was reduced, the result was some different: the tendency was the same, but the difference of specific point values was some big. The new boundaries of the reduce calculation domain were set for pressure-inlet, and the pressure was zero. Under this condition, the cracks could be simplified to wall boundary conditions.

  Info
Periodical
Advanced Materials Research (Volumes 374-377)
Chapter
Chapter 2: Efficient Architecture Equipment, Ventilation, Air Conditioning and Refrigeration Technology
Edited by
Hui Li, Yan Feng Liu, Ming Guo, Rui Zhang and Jing Du
Pages
419-424
DOI
10.4028/www.scientific.net/AMR.374-377.419
Citation
Y. Zhou, Y. Wang, "Calculation Domain and Boundary Conditions for Push-Pull Ventilation", Advanced Materials Research, Vols. 374-377, pp. 419-424, 2012
Online since
October 2011
Authors
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Price
$32.00
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