Frontal resistance coefficient of the buses with the different ventilation equipment

Authors

  • 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, e-mail: mariusz.adamski@pb.edu.pl http://orcid.org/0000-0002-1686-8301
  • 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

Keywords:

Boundary layer, Air flow, Aerodynamic tunnel, Ventilation, Boundary layer thickness

Abstract

The article presents the results of the investigation of the influence of natural and mechanical ventilation in the passenger compartment and in the driver's compartment on the air flow around the bus. Experimental research was carried out in aerodynamic tunnels. Based on the measurements, the air velocities distribution in the boundary layer is determined. Also, the effect of the natural ventilation of the interior space on the thickness of the air boundary layer is analysed. The results are presented in the form of distribution diagram and analytical dependencies. The aim of the research was to define the thickness of the boundary layer when the air flows through the vehicle model.

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Published

2021-11-25