Abstract
In recent years, end users have become more concerned with the human experience and the personal comfort of the individual is becoming more important in the design of the built environment. Computational Fluid Dynamics (CFD) is a tool that permits assessment of personal comfort. CFD is a stream of fluid mechanics that utilises numerical methods to analyse and solve problems involving fluid flows. While research applications of CFD are developing, as is the use of CFD in the aerospace and Formula1 industries, the use of CFD in Civil Engineering applications is currently at the cutting edge. This paper will investigate the use of computational fluid dynamics as a complementary approach to wind tunnel testing for pedestrian comfort. The results showcased here were determined through a consultancy project by the team at Arup, Dublin. On determining potential wind problems, mitigation measures were proposed and tested in CFD to prove that the mitigation measures were effective. These proposed changes were incorporated into the final design and as a result planning permission was awarded for the development. This work is exemplar of how, from the very conception of the project design, new technological advances lead to a better built and sustainable environment for all.DOI: http://dx.doi.org/10.5755/j01.sace.19.2.17991
Highlights
On determining potential wind problems, mitigation measures were proposed and tested in Computational Fluid Dynamics (CFD) to prove that the mitigation measures work. These proposed changes were incorporated into the final design and as a result planning permission was awarded for the development
This research has validated that CFD obtains equivalent results, comparable to and in agreement with a wind tunnel test
As potential wind problems were uncovered in the design stage of a building submitting for planning permission, mitigation measures were proposed and tested in CFD to verify the proposed changes
Summary
Similar to wind tunnel tests, it can be used to understand the interaction of wind flow through an urban environment and the effect of a proposed development on the local wind microclimate. CFD is not used as a design tool to modify proposed buildings nor is a wind tunnel test used to validate the results. This paper proposes a world first, to validate CFD against wind tunnel tests for the same building while proposing a change in design to alleviate pedestrian discomfort.
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