Original scientific paper
https://doi.org/10.30765/er.1443
Frontal resistance coefficient of the buses with the different ventilation equipment
Orest Voznyak
; Lviv Polytechnic National University, Department of Heat and Gas Supply and Ventilation, St. Bandery 12, 79013 Lviv, Ukraine
Oleksandr Dovbush
; Lviv Polytechnic National University, Department of Heat and Gas Supply and Ventilation, St. Bandery 12, 79013 Lviv, Ukraine
Peter Kapalo
; Technical University of Kosice, Faculty of Civil Engineering, Department of Technical Building Equipment, Vysokoskolska 4, 04200 Kosice, Slovakia
Mariusz Adamski
; Bialystok University of Technology, Faculty of Civil and Environmental Engineering 45E, Wiejska Street, 15-351 Bialystok, Poland
Florin Domnita
; Technical University of Cluj-Napoca, Building Services Faculty, Department of Building Services Engineering, 21 Decembrie 1989 Boulevard 128-130, 400604 Cluj-Napoca, Romania
Ciprian Bacotiu
; Technical University of Cluj-Napoca, Building Services Faculty, Department of Building Services Engineering, 21 Decembrie 1989 Boulevard 128-130, 400604 Cluj-Napoca, Romania
Abstract
The article presents the results of the investigation of the influence of natural and mechanical ventilation in a passenger compartment and in a driver's compartment on the air flow around the bus. The experimental research was carried out in aerodynamic tunnels. Based on the measurements, the air velocities distribution in the boundary layer was determined. Furthermore, the effect of natural ventilation of the interior space on the thickness of the air boundary layer was analysed. The results are presented in the form of distribution diagram and analytical dependencies. The aim of this research was to define the thickness of the boundary layer when the air flows through a vehicle model.
Keywords
boundary layer; air flow; aerodynamic tunnel; ventilation; boundary layer thickness
Hrčak ID:
257070
URI
Publication date:
24.11.2021.
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