Please use this identifier to cite or link to this item: http://dx.doi.org/10.18419/opus-11488
Authors: Sakiyama, Nayara R. M.
Frick, Jürgen
Bejat, Timea
Garrecht, Harald
Title: Using CFD to evaluate natural ventilation through a 3D parametric modeling approach
Issue Date: 2021
metadata.ubs.publikation.typ: Zeitschriftenartikel
metadata.ubs.publikation.seiten: 27
metadata.ubs.publikation.source: Energies 14 (2021), No. 2197
URI: http://elib.uni-stuttgart.de/handle/11682/11505
http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-ds-115056
http://dx.doi.org/10.18419/opus-11488
ISSN: 1996-1073
Abstract: Predicting building air change rates is a challenge for designers seeking to deal with natural ventilation, a more and more popular passive strategy. Among the methods available for this task, computational fluid dynamics (CFD) appears the most compelling, in ascending use. However, CFD simulations require a range of settings and skills that inhibit its wide application. With the primary goal of providing a pragmatic CFD application to promote wind-driven ventilation assessments at the design phase, this paper presents a study that investigates natural ventilation integrating 3D parametric modeling and CFD. From pre- to post-processing, the workflow addresses all simulation steps: geometry and weather definition, including incident wind directions, a model set up, control, results’ edition, and visualization. Both indoor air velocities and air change rates (ACH) were calculated within the procedure, which used a test house and air measurements as a reference. The study explores alternatives in the 3D design platform’s frame to display and compute ACH and parametrically generate surfaces where air velocities are computed. The paper also discusses the effectiveness of the reference building’s natural ventilation by analyzing the CFD outputs. The proposed approach assists the practical use of CFD by designers, providing detailed information about the numerical model, as well as enabling the means to generate the cases, visualize, and post-process the results.
Appears in Collections:02 Fakultät Bau- und Umweltingenieurwissenschaften

Files in This Item:
File Description SizeFormat 
Using CFD to Evaluate Natural Ventilation through a 3D Parametric Modeling Approach.pdf11,48 MBAdobe PDFView/Open


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