Aerodynamic Coefficients for Frameless Arched Coverings of Rounded Shape
Abstract: A rational option for the insulation of frameless arched coverings is an option consisting of two layers of a cold-curved arch profile, a thermal insulation layer and a ventilated air layer located between them. To obtain the standard air flow velocity in the ventilated layer, it is necessary to determine the speed of the external wind flow at the entrance to the vent. The paper performs numerical simulation of wind flow pressure on frameless arched coverings acting at different angles of attack. As a result, the flow trajectories of arched coverings and patterns of distribution of relative wind pressure over their surface are obtained. Based on the obtained data, the regularities of changes in aerodynamic coefficients are established, taking into account changes in the design parameters of frameless arched coverings and the angles of attack of the incoming wind flow. Schemes of distribution of aerodynamic coefficients are constructed. The obtained values of aerodynamic coefficients exceed the values recommended by the standards, selected for vaulted buildings and coatings close to them in outline. Further research is needed to refine the obtained data.
Keywords: frameless arched covering, wind flow, angle of attack, numerical modeling, aerodynamic coefficients.
Pages: 23-30.
For citation: Mazur, V. A.; Chayka, M. A.; Barmotin, A. A. [et al.]. Aerodynamic Coefficients for Frameless Arched Coverings of Rounded Shape. – Text : electronic. – In: Proceeding of the Donbas National Academy of Civil Engineering and Architecture. – 2021. – Issue 2021-6(152) Technology, organization, mechanization and geodetic support of construction. – Р. 23-30. – URL: https://donnasa.ru/publish_house/journals/vestnik/2021/2021-6(152)/st_04_mazur_chayka_barmotin_profatilo.pdf (date of access: 19.11.2024). – ISSN 2519-2817.
Issue 2021-6 (152)
Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture
Journal: Proceeding of the Donbas National Academy of Civil Engineering and Architecture
Publish house: Donbas National Academy of Civil Engineering and Architecture