Modelling of air flow rate in significantly flattened rounded rectangular ventilation ducts
UTP University of Science and Technology in Bydgoszcz, Faculty of Mechanical Engineering, Kaliskiego 7, Poland
2 Department of Power Engineering Equipment, Faculty of Mechanical Engineering, Technical University of Liberec, Studentska 2, 46117 Liberec, Czech Republic
* Corresponding author: email@example.com
Published online: 4 June 2018
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.
© The Authors, published by EDP Sciences, 2018
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