3-D CFD Simulation of the Airflow over a Gable Roof with Different Elevations

Abstract:

The pressure coefficients on duo-pitched roofs of separated buildings are well described by several standards. Nowadays, there are various commercial or non-commercial programs which can predict the pressure coefficients. However, the most accurate method is to perform a wind tunnel test. The aim of this paper is to simulate the airflow over a gable roof with different elevations under ANSYS Fluent 14.0 program. Examined elevations of the gable roof are 5°, 15° and 30°. Classical two equation k-ε turbulence models based on Reynolds Averaged Navier-Stokes (RANS) equations simulation were performed. Performance of each turbulence model with the increasing angel of the roof was compared.

• Periodical: Applied Mechanics and Materials (Volume 769)
• Pages: 229-234
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.769.229
• Online since: June 2015
• Authors: Juraj Jr. Kralik*
• Keywords: 3D Computing Model, Airflow, ANSYS FLUENT, CFD, Gable Roof Elevation, Turbulent Flow

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