Improvements of fast fluid dynamics for simulating air flow in buildings

Mingang Jin; Wangda Zuo; Qingyan Chen

doi:10.1080/10407790.2012.724988

Improvements of fast fluid dynamics for simulating air flow in buildings

Mingang Jin, Wangda Zuo, Qingyan Chen

Department of Building Environment and Energy Engineering

Research output: Journal article publication › Journal article › Academic research › peer-review

36 Citations (Scopus)

Abstract

Fast fluid dynamics (FFD) can potentially be used for real-time indoor air-flow simulations. This study developed two-dimensional fast fluid dynamics (2-D FFD) into three-dimensional fast fluid dynamics (3-D FFD). The implementation of boundary conditions at the outlet was improved with a local mass conservation method. A near-wall treatment for the semi-Lagrangian scheme was also proposed. This study validated the 3-D FFD with five flows that have features of indoor air flow. The results show that the 3-D FFD can successfully capture the three dimensionality of air-flow and provide reliable and reasonably accurate simulations for indoor air flows with a speed of about 15 times faster than current computational fluid dynamics (CFD) tools.

Original language	English
Pages (from-to)	419-438
Number of pages	20
Journal	Numerical Heat Transfer, Part B: Fundamentals
Volume	62
Issue number	6
DOIs	https://doi.org/10.1080/10407790.2012.724988
Publication status	Published - 1 Jan 2012

ASJC Scopus subject areas

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

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10.1080/10407790.2012.724988

Cite this

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title = "Improvements of fast fluid dynamics for simulating air flow in buildings",

abstract = "Fast fluid dynamics (FFD) can potentially be used for real-time indoor air-flow simulations. This study developed two-dimensional fast fluid dynamics (2-D FFD) into three-dimensional fast fluid dynamics (3-D FFD). The implementation of boundary conditions at the outlet was improved with a local mass conservation method. A near-wall treatment for the semi-Lagrangian scheme was also proposed. This study validated the 3-D FFD with five flows that have features of indoor air flow. The results show that the 3-D FFD can successfully capture the three dimensionality of air-flow and provide reliable and reasonably accurate simulations for indoor air flows with a speed of about 15 times faster than current computational fluid dynamics (CFD) tools.",

author = "Mingang Jin and Wangda Zuo and Qingyan Chen",

note = "Funding Information: Received 20 December 2011; accepted 30 June 2012. This research was supported by the U.S. Department of Energy through the Energy Efficient Buildings Hub. Address correspondence to Qingyan Chen, National Air Transportation Center of Excellence for Research in the Intermodal Transport Environment (RITE), School of Mechanical Engineering, Purdue University, 585 Purdue Mall, West Lafayette, IN 47907-2088, USA. E-mail: yanchen@purdue.edu",

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N1 - Funding Information: Received 20 December 2011; accepted 30 June 2012. This research was supported by the U.S. Department of Energy through the Energy Efficient Buildings Hub. Address correspondence to Qingyan Chen, National Air Transportation Center of Excellence for Research in the Intermodal Transport Environment (RITE), School of Mechanical Engineering, Purdue University, 585 Purdue Mall, West Lafayette, IN 47907-2088, USA. E-mail: yanchen@purdue.edu

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N2 - Fast fluid dynamics (FFD) can potentially be used for real-time indoor air-flow simulations. This study developed two-dimensional fast fluid dynamics (2-D FFD) into three-dimensional fast fluid dynamics (3-D FFD). The implementation of boundary conditions at the outlet was improved with a local mass conservation method. A near-wall treatment for the semi-Lagrangian scheme was also proposed. This study validated the 3-D FFD with five flows that have features of indoor air flow. The results show that the 3-D FFD can successfully capture the three dimensionality of air-flow and provide reliable and reasonably accurate simulations for indoor air flows with a speed of about 15 times faster than current computational fluid dynamics (CFD) tools.

AB - Fast fluid dynamics (FFD) can potentially be used for real-time indoor air-flow simulations. This study developed two-dimensional fast fluid dynamics (2-D FFD) into three-dimensional fast fluid dynamics (3-D FFD). The implementation of boundary conditions at the outlet was improved with a local mass conservation method. A near-wall treatment for the semi-Lagrangian scheme was also proposed. This study validated the 3-D FFD with five flows that have features of indoor air flow. The results show that the 3-D FFD can successfully capture the three dimensionality of air-flow and provide reliable and reasonably accurate simulations for indoor air flows with a speed of about 15 times faster than current computational fluid dynamics (CFD) tools.

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Improvements of fast fluid dynamics for simulating air flow in buildings

Abstract

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