Abstract
The aim of the investigation is determination of compressing coefficient and air jet’s initial velocity under the condition, when bus passenger compartment is filled to a great extent with seats and passengers (sitting and standing).
Air distribution experimental research was carried out in passenger compartment of different LAZ (Lviv Bus Plant) bus production models both at presence and absence of the passengers (in filled and empty bus passenger compartment). Air was supplied at the various flow rate through the different air distribution devices. Air exhaust was realized through the driver window. Air jet’s initial velocity of outlet from inflow hole and axial velocities in the bus passenger compartment service area has been experimentally determined. Measurement of the air jet’s velocity was made by thermal electrical anemometer Testo-405. Universal calculating equations of air jet’s velocities and determining factors have been expressed as dimensionless. Velocity of air jet’s outlet from inflow holes of different size and axial velocities in empty and filled bus passenger compartment of different production models have been measured. Dependence of compressing coefficient from three factors is determined and presented as a chart. Obtained chart has been approximated by equation.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
Allmaras SR (1999) Multigrid for the 2-D compressible navier-stokes equations. In: 14th computational fluid dynamics conference, American Institute of Aeronautics and Astronautics, Norfolk, USA
Allmaras SR, Johnson FT, Spalart PR (2012) Modifications and clarifications for the implementation of the spalart-allmaras turbulence model ICCFD7-1902. In: 7th International Conference on Computational Fluid Dynamics, Hawaii
Zhao B, Li X, Zhao QY (2003) A simplified system for indoor airflow simulation. Build Environ 38:543–552
Chen Q, Srebric J (2001) Simplified diffuser boundary conditions for numerical room airflow models. Final Report for ASHRAE RP-1009, Department of Architecture, Massachusetts Institute of Technology, Cambridge, MA, p 181
Holyoake (2006) Diffuser Performance Data Sheet, Ceiling Fixed Pattern Radial Swirl Diffuser, Model CFP Radial Induction Swirl Diffuser
Huo Y, Haghighat F, Zhang J, Shaw C (2000) A systematic approach to describe the air terminal device CFD simulation for room air distribution analysis. Build Environ 35(6):563–576
Kapalo P, Vilcekova S, Domnita F, Voznyak O (2014). Determine a methodology for calculating the needed fresh air. In: The 9th International Conference “Envi-ronmental Engineering”, Vilnius, Lithuania Selected Papers eISSN 2029-7092/eISBN 978-609-457-640-9
Korbut V, Voznyak O, Myroniuk K, Sukholova I, Kapalo P (2017) Examining a device for air distribution by the interaction of counter non-coaxial jets under alternating mode. Eastern Eur J Enterp Technol 2(8(86)):30–38 ISSN 1729-3774
Lorin E, Benhajali A, Soulaimani AA (2007) Positivity preserving finite element-finite volume solver for the Spalart-Allmaras turbulence model. Comput Meth Appl Mech Eng 196(17–20):2097–2116
Rumsey CL, Spalart PR (2009) Turbulence model behavior in low reynolds number regions of aerodynamic flowfields. AIAA J 47(4):982–993
Srebric J, Chen Q (2002) Simplified numerical models for complex air supply diffusers. HVAC&R Res 8(3):277–294
Voznyak O, Sukholova I, Myroniuk K (2015) Research of device for air distribution with swirl and spread air jets at variable mode. Eastern Eur J Enterp Technol 6/7(78):15–23
Grimitlin M (2004) Indoor air distribution. S.Petersburg, p 320 (in Russian)
Gumen M, Dovgaliuk V, Milejkovski V (2016) Determination of the streams turbulence intensity with large-scale vortices on the basis of geometric and kinematic analysis of macrostructure. In Proceedings of Lviv Polytechnic National University: The theory and practice of construction, No 844, pp 76–83 (in Ukrainian)
Dovgaliuk V, Milejkovski V (2002) The calculation model of the stream, which is laid on the curvilinear surface. In: Proceedings of kyiv construction and architecture national university: ventilation, lighting and heat supply, vol 5, pp 26–46 (in Ukrainian)
Dovgaliuk V, Milejkovski V (2013) Analytical studies of the macrostructure of jet flows for the calculation of energy efficient air distribution systems. Energy Effi Constr Architect 4:73–81 (in Ukrainian)
Dovgaliuk V, Milejkovski V (2008) Estimated model of nonisothermal stream, which is laid out on a convex cylindrical surface. In: Proceedings of Kyiv Construction and Architecture National University: Ventilation, lighting and heat supply, vol 12, pp 11–32 (in Ukrainian)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2020 Springer Nature Switzerland AG
About this paper
Cite this paper
Voznyak, O., Yurkevych, Y., Dovbush, O., Serediuk, Y. (2020). The Influence of Chairs and Passengers on Air Velocity in Bus Passenger Compartment. In: Blikharskyy, Z., Koszelnik, P., Mesaros, P. (eds) Proceedings of CEE 2019. CEE 2019. Lecture Notes in Civil Engineering , vol 47. Springer, Cham. https://doi.org/10.1007/978-3-030-27011-7_66
Download citation
DOI: https://doi.org/10.1007/978-3-030-27011-7_66
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-27010-0
Online ISBN: 978-3-030-27011-7
eBook Packages: EngineeringEngineering (R0)