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 SizeFormat 
aerodynamic_study_of_the_airflow.pdf1.15 MBAdobe PDFThumbnail
  
See online
Show full item record

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.