Simulation and Analysis of a Turbulent Flow Around a Three-Dimensional Obstacle

التفاصيل البيبلوغرافية
العنوان:	Simulation and Analysis of a Turbulent Flow Around a Three-Dimensional Obstacle
المؤلفون:	Benahmed, Lamia, Aliane, Khaled
المصدر:	Acta Mechanica et Automatica ; volume 13, issue 3, page 173-180 ; ISSN 2300-5319
بيانات النشر:	Walter de Gruyter GmbH
سنة النشر:	2019
الوصف:	The study of flow around obstacles is devised into three different positions: above the obstacle, upstream of the obstacle, and downstream of the latter. The behaviour of the fluid downstream of the obstacle is less known, and the physical and numerical modelling is being given the existence of recirculation zones with their complex behaviour. The purpose of the work presented below is to study the influence of the inclined form of the two upper peaks of a rectangular cube. A three-dimensional study was carried out using the ANSYS CFX calculation code. Turbulence models have been used to study the flow characteristics around the inclined obstacle. The time-averaged results of contours of velocity vectors , cross-stream and stream wise velocity and streamlines were obtained by using K-ω shear -stress transport (SST), RANG K-ε and K-ε to model the turbulence, and the governing equations were solved using the finite volume method. The turbulence model K-ω SST has presented the best prediction of the flow characteristics for the obstacle among the investigated turbulence models in this work.
نوع الوثيقة:	article in journal/newspaper
اللغة:	English
DOI:	10.2478/ama-2019-0023
الاتاحة:	http://dx.doi.org/10.2478/ama-2019-0023 https://content.sciendo.com/view/journals/ama/13/3/article-p173.xml https://www.sciendo.com/pdf/10.2478/ama-2019-0023
Rights:	http://creativecommons.org/licenses/by-nc-nd/3.0
رقم الانضمام:	edsbas.C7EB0114
قاعدة البيانات:	BASE

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الوصف
DOI:	10.2478/ama-2019-0023