The influence of the wind structure definition in the standard k-ε model of turbulence on the distribution of pressure coefficient on the façades of the prism
Paulina Jamińska
Department of Structural Mechanics; Faculty of Civil Engineering and Architecture; Lublin University of Technology (Poland)
https://orcid.org/0000-0003-2205-6526
Abstract
The paper deals with the influence of the definition of turbulence kinetic energy k and dissipation of turbulence kinetic energy ε on wind pressure coefficient distribution on walls of rectangular model. The investigation includes computer simulations for the four cases of boundary conditions, the most common in the literature. In some analysed cases, the wind structure characteristics used in computations were derived from experimental studies performed in the wind tunnel. The results in the form of pressure coefficients were analyzed on the basis of their relevance to the use in the field of wind engineering. All calculations were performed in ANSYS FLUENT with use of standard k-ε model. The 3D model of the flow around the prism was considered in calculations.
Keywords:
turbulent wind flow, wind structure, k-ε model, Computational Fluid DynamicsReferences
Błazik-Borowa E., Problemy związane ze stosowaniem modelu turbulencji k-? wyznaczania parametrów opływu budynków, Wydawnictwo Politechniki Lubelskiej, 2008.
Google Scholar
Easeom G., Improved Turbulence Models for computational Wind Engineering, PhD Thesis, Nottingham, 2000.
Google Scholar
Launder B.E., Spalding D.B., Lectures in Mathematical Models of Turbulence, Academic Press, Londyn 1972.
Google Scholar
Richards P.J., Hoxey R.P., Appropriate boundary conditions for computational wind engineering model using the k-? turbulence model, Journal of Wind Engineering and Industrial Aerodynamics 46&47 (1993) 145-153.
DOI: https://doi.org/10.1016/0167-6105(93)90124-7
Google Scholar
Blocken B., Stathopoulos T., Carmeliet J., CFD simulation of the atmospheric boundary layer: wall function problems, Atmospheric Environment 41 (2007) 238-252.
DOI: https://doi.org/10.1016/j.atmosenv.2006.08.019
Google Scholar
Franke, J., Hellsten, A., Schlünzen, H. and Carissimo, B. (Eds.) Best Practice Guideline for the CFD Simulation of Flows in the Urban Environment, COST Office, Brussels 2007.
Google Scholar
Norris S.E., Richards P.J., Appropriate boundary conditions for computational wind engineering models revisited, The fifth International Symposium on Computational Wind Engineering, 2010.
DOI: https://doi.org/10.1016/j.jweia.2010.12.008
Google Scholar
Tominaga Y., Mochida A., Yoshie R., Kataoka H., Nozu T., Yoshikawa M., Shirasawa T., AIJ guidelines for practical applications of CFD to pedestrian wind environment around buildings, Journal of Wind Engineering and Industrial Aerodynamics 96 (2008) 1749-1761.
DOI: https://doi.org/10.1016/j.jweia.2008.02.058
Google Scholar
Zhang J., Yang Q., Li Q.S., Application of nonlinear eddy viscosity model in simulations of flows over bluff body, BBAA7 2012.
Google Scholar
Bęc J., Lipecki T., Błazik-Borowa E., Szulej J., Badania struktury przepływu w tunelu aerodynamicznym Laboratorium Inżynierii Wiatrowej Politechniki Krakowskiej, Materiały XIII Konferencji Fizyki Budowli w Teorii i Praktyce, Łódź 2011.
Google Scholar
Blocken B., Carmeliet J., Stathopoulos T., CFD evaluation of wind speed conditions in passages between parallel buildings – effect of wall-function roughness modifications for the atmospheric boundary layer flow, Journal of Wind Engineering and Industrial Aerodynamics 95, 2007.
DOI: https://doi.org/10.1016/j.susc.2007.01.031
Google Scholar
Yoshie R., Mochida A., Tominaga Y., Kataoka H., Harimoto K., Nozu T., Shirasawa T., Cooperative Project for CFD prediction of pedestrian wind environment In the Architectural Institute of Japan, Journal of Wind Engineering and Industrial Aerodynamics 95, 2007.
DOI: https://doi.org/10.1016/j.jweia.2007.02.023
Google Scholar
Authors
Paulina JamińskaDepartment of Structural Mechanics; Faculty of Civil Engineering and Architecture; Lublin University of Technology Poland
https://orcid.org/0000-0003-2205-6526
Statistics
Abstract views: 222PDF downloads: 143
License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Budownictwo i Architektura supports the open science program. The journal enables Open Access to their publications. Everyone can view, download and forward articles, provided that the terms of the license are respected.
Publishing of articles is possible after submitting a signed statement on the transfer of a license to the Journal.