Modelling of air flow rate in significantly flattened rounded rectangular ventilation ducts

Paper presents new mathematical model for air flow velocity distribution in rounded rectangular ducts and its experimental verification. In papers [1, 2] an mathematical model based on modified Prandtl equation for power power-law velocity profile was determined. It works very well for smaller cross...

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Bibliographic Details
Published in:EPJ Web of conferences 2018-01, Vol.180, p.2082
Main Authors: Peszynski, Kazimierz, Novosád, Jan, Smyk, Emil, Olszewski, Lukasz, Dančová, Petra
Format: Article
Language:English
Subjects:
Air flow
Cross-sections
Ducts
Flow velocity
Mathematical analysis
Mathematical models
Velocity distribution
Ventilation
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Summary:Paper presents new mathematical model for air flow velocity distribution in rounded rectangular ducts and its experimental verification. In papers [1, 2] an mathematical model based on modified Prandtl equation for power power-law velocity profile was determined. It works very well for smaller cross sections. During the study of larger cross sections new phenomena in flowing air have been observed, it forced the search for a new model. The new model is based on a rounded rectangular division into two parts: slot and rounded square.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/201817002082