Simulating wind-driven rain on building facades using Eulerian multiphase with standard k - epsilon turbulence model

Examensarbete för masterexamen

Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12380/226222
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Type: Examensarbete för masterexamen
Master Thesis
Title: Simulating wind-driven rain on building facades using Eulerian multiphase with standard k - epsilon turbulence model
Authors: Pettersson, Kaj
Abstract: Wind-driven rain (WDR) is responsible for many types of damage to building facades and contributes to runoff management problems in urban environments. Consequently there is significant interest in predicting WDR using CFD simulations. In this thesis an Eulerian multiphase (EM) method is proposed which includes solving the rain phase closure equations instead of using a response coefficient to approximate turbulent behavior. The simulations are conducted using AVL FIRE with standard k - epsilon model and are validated against experimental data. The method produces results with error ranging from 1% to 50%, comparable to previous methods. In addition the use of no-slip boundary conditions on the facade walls causes artificially high levels of WDR, requiring numerical or methodological compensation.
Keywords: Strömningsmekanik och akustik;Building Futures;Hållbar utveckling;Fluid Mechanics and Acoustics;Building Futures;Sustainable Development
Issue Date: 2015
Publisher: Chalmers tekniska högskola / Institutionen för tillämpad mekanik
Chalmers University of Technology / Department of Applied Mechanics
Series/Report no.: Diploma work - Department of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden : 2015:87
URI: https://hdl.handle.net/20.500.12380/226222
Collection:Examensarbeten för masterexamen // Master Theses



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