Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316.2/44687
Title: | Aerodynamic study of the airflow around a scale triangular prismatic hill for Low Reynolds Number | Authors: | Conceição, Eusébio Z. E. Lúcio, Mª Manuela J. R. Viegas, Domingos X. Viegas, Maria T. |
Keywords: | Numerical Simulation;Experimental Tests;Aerodynamic Study;Airflow Around a Scale Triangular Prismatic Hill | Issue Date: | 2018 | Publisher: | Imprensa da Universidade de Coimbra | Journal: | http://hdl.handle.net/10316.2/44517 | Abstract: | In this work is made the aerodynamic study of the airflow around a scale triangular prismatic hill for low Reynolds number. The study is made experimentally and numerically. The numerical simulation is used to complement the experimental results. The study considers a scale triangular prismatic hill with 4 cm of side and 20 cm of length. The scale triangular prismatic hill is located inside a channel with a square section, with 20 cm of side and 100 cm of length. The experimental study is made in a low air velocity aerodynamic tunnel, with a square experimental section of 20×20 cm2. In the experimental test, the airflow around a scale triangular prismatic hill is obtained using the smoke visualization, a laser and a film machine. In the image acquisition a rate of 25 images per second is used. In the numerical simulation the Computational Fluid Dynamics is used. The Computational Fluid Dynamics numerical model considers the two-dimensional turbulent airflows under steady-state and non-isothermal conditions. In the study the air velocity is 0.15 m/s. The air velocity is controlled, in the experimental tunnel, using a Babuc-A and confirmed in the final using a graphic methodology. In the paper the airflow around a scale triangular prismatic hill is analysed. The vortexes dimensions in steady state conditions are numerically calculated, while the vortexes formation in transient conditions are experimentally analysed. | URI: | https://hdl.handle.net/10316.2/44687 | ISBN: | 978-989-26-16-506 (PDF) | DOI: | 10.14195/978-989-26-16-506_170 | Rights: | open access |
Appears in Collections: | Advances in forest fire research 2018 |
Files in This Item:
File | Description | Size | Format | |
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aerodynamic_study_of_the_airflow.pdf | 1.15 MB | Adobe PDF |
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