A Discussion of the Impact of Building Wind Deflector on Changes in Wind Field by Using the Numerical Simulation

Abstract:

Based on the local acceleration effect generated by air flow passing through obstacles, this study explored changes in the surrounding wind field of buildings and the possibility to develop the potential wind energy by installing wind deflector in building according to the concept of “dredging” to facilitate the integrated application of small-scale wind turbine in buildings. With a nine-story building as the research subject, this study used the wind deflector installed on the building roof to generate the contracted flow effect (Venturi effect) to accelerate the air flow, change wind field and thus increase the possibility of wind power use as well as the power generation efficiency of the small-scale wind turbine. This study applied the numerical simulation method to discuss differences in three cases of no wind deflector (N-WD), installing lower wind deflector (L-WD) and installing upper and lower wind deflectors (2-WD). It also evaluated the impact on wind field and contribution to wind speed acceleration.

• Periodical: Applied Mechanics and Materials (Volumes 291-294)
• Pages: 419-424
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.291-294.419
• Online since: February 2013
• Authors: Nien Tsu Chen, Poren Chung, Che Ming Chiang, Kuang Sheng Liu, Cheng Chen Chen
• Keywords: Numerical Simulation, Wind Deflector, Wind Energy, Wind Field

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