Generalized equation for the design of a baffle to generate arbitrary flow velocity profiles

Flow velocity profiles can be transformed using non-uniform resistance elements, and the design equation for the distribution of pores in a single baffle plate of uniform thickness was formulated to transform any flow velocity profile into another arbitrary velocity profile. The proposed equation wa...

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Bibliographic Details
Published in:Journal of wind engineering and industrial aerodynamics 2016-02, Vol.149, p.30-34
Main Authors: Choi, M.K., Cho, M.K., Lee, H.W., Jung, H., Lee, J.W.
Format: Article
Language:English
Subjects:
Baffle
Baffles
Design analysis
Design engineering
Flow velocity
Flow velocity profile
Local porosity distribution
Mathematical analysis
Porosity
Transformation
Transforms
Wind engineering
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Summary:Flow velocity profiles can be transformed using non-uniform resistance elements, and the design equation for the distribution of pores in a single baffle plate of uniform thickness was formulated to transform any flow velocity profile into another arbitrary velocity profile. The proposed equation was validated first through numerical analysis for a couple of velocity profiles with satisfactory results, and then verified by an experiment with an excellent agreement of maximum difference less than 4.3%. Also found was an empirical relation between the number of holes in the baffle and the accuracy of the transformed velocity profile.
ISSN:0167-6105
1872-8197
DOI:10.1016/j.jweia.2015.11.013