Improvements in FFD modeling by using different numerical schemes

Wangda Zuo; Jianjun Hu; Qingyan Chen

doi:10.1080/10407790.2010.504694

Improvements in FFD modeling by using different numerical schemes

Wangda Zuo, Jianjun Hu, Qingyan Chen

Architectural Engineering

Research output: Contribution to journal › Article › peer-review

39 Scopus citations

Abstract

Indoor environment design and air management in buildings requires fast simulation of air distribution. A fast fluid dynamics (FFD) model seems very promising. This work was to develop the FFD by improving its speed and accuracy. Enhancement of computing speed can be realized by modifying the time-splitting method. Improvements in accuracy were achieved by replacing the finite-difference scheme by the finite-volume method and by proposing a correction function for mass conservation. Using the new FFD model for several indoor air flows, the results show significant reduction in computing time and great improvements on accuracy.

Original language	English (US)
Pages (from-to)	1-16
Number of pages	16
Journal	Numerical Heat Transfer, Part B: Fundamentals
Volume	58
Issue number	1
DOIs	https://doi.org/10.1080/10407790.2010.504694
State	Published - Jul 2010

All Science Journal Classification (ASJC) codes

Numerical Analysis
Modeling and Simulation
Condensed Matter Physics
Mechanics of Materials
Computer Science Applications

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10.1080/10407790.2010.504694

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abstract = "Indoor environment design and air management in buildings requires fast simulation of air distribution. A fast fluid dynamics (FFD) model seems very promising. This work was to develop the FFD by improving its speed and accuracy. Enhancement of computing speed can be realized by modifying the time-splitting method. Improvements in accuracy were achieved by replacing the finite-difference scheme by the finite-volume method and by proposing a correction function for mass conservation. Using the new FFD model for several indoor air flows, the results show significant reduction in computing time and great improvements on accuracy.",

author = "Wangda Zuo and Jianjun Hu and Qingyan Chen",

note = "Funding Information: This study was funded by the U.S. Federal Aviation Administration (FAA) Office of Aerospace Medicine through the National Air Transportation Center of Excellence for Research in the Intermodal Transport Environment under Cooperative Agreement 07-CRITE-PU. Although the FAA sponsored this project, it neither endorses nor rejects the findings of this research. The presentation of this information is in the interest of invoking technical community comment on the results and conclusions of the research.",

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AU - Hu, Jianjun

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AB - Indoor environment design and air management in buildings requires fast simulation of air distribution. A fast fluid dynamics (FFD) model seems very promising. This work was to develop the FFD by improving its speed and accuracy. Enhancement of computing speed can be realized by modifying the time-splitting method. Improvements in accuracy were achieved by replacing the finite-difference scheme by the finite-volume method and by proposing a correction function for mass conservation. Using the new FFD model for several indoor air flows, the results show significant reduction in computing time and great improvements on accuracy.

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Improvements in FFD modeling by using different numerical schemes

Abstract

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