Airflow characteristics within a slot-ventilated enclosure

Moureh, Jean; Flick, Denis

doi:10.1016/j.ijheatfluidflow.2004.05.018

Cited by 85 publications

(33 citation statements)

References 20 publications

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“…These point measurements in an air filled setup (2 9 2 9 2 m 3 ) will provide time-resolved data of the air flow pattern, which will provide valuable complementary information to the data set presented in this paper. In addition, LDA is more suited than PIV to carry out a local study concerning wall jet detachment, especially its intermittency (Moureh and Flick 2003) and the local turbulence anisotropy (Moureh and Flick 2005).…”

Section: Discussionmentioning

confidence: 99%

PIV measurements of a plane wall jet in a confined space at transitional slot Reynolds numbers

et al. 2012

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Wall jets are important for a wide variety of engineering applications, including ventilation of confined spaces and cooling and drying processes. Although a lot of experimental studies have been devoted to wall jets, many of these have focused on laminar or turbulent wall jets. There is a lack of experimental data on transitional wall jets, especially transitional wall jets released into a confined space or enclosure. This paper presents flow visualizations and high-resolution Particle Image Velocimetry measurements of isothermal transitional plane wall jets injected through a rectangular slot in a confined space. As opposed to many previous studies, not only the wall jet region but also the recirculation region in the remainder of the enclosure is analyzed. The data and analysis in this paper provide new insights into the behavior of transitional plane wall jets in a confined space and will be useful for the validation of numerical simulations of this type of jets.

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Section: Discussionmentioning

confidence: 99%

PIV measurements of a plane wall jet in a confined space at transitional slot Reynolds numbers

et al. 2012

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“…Doorways, even without air curtains, affect internal air flows, [37][38][39][40][41] which in turn affect the comfort of the inhabitants, energy usage as well as the transport of trace particles. The addition of an air curtain, which serves to partition two enclosures, complicates the flow pattern.…”

Section: Resultsmentioning

confidence: 99%

Numerical Modeling of Doorway Flow Induced by an Air Curtain

Chauhan

Pierce

et al. 2006

9th AIAA/ASME Joint Thermophysics and Heat Transfer Conference

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A large cabin was partitioned along its centerline with the two sides were connected by a doorway. An air curtain was mounted just in front of the doorway. Directly below the air curtain, on the floor, is a vent for receiving the air curtain flow. The air curtain flow was modeled by a commercial Reynolds-averaged Navier-Stokes flow solver with a k-ε turbulence model. The simulation showed that the longitudinal velocity profile of the jet was well maintained from the top to the bottom of the doorway, with a small amount of lateral diffusion. However, the transverse velocity profile showed a larger amount of diffusion. The results indicated that the floor vent did not properly capture the air curtain flow, resulting in entrainment of the air curtain flow into the cabin. Thus, a detailed design of the floor vent is required for certain applications, such as next-generation explosives detection portals, where as much of the air curtain flow as possible needs to be captured.

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“…Singh et al (2003), studied six different configurations of inlet and outlet positions in order to find the best configuration for maximum cooling efficiency of a cavity. Moureh and Flick (2005), combined numerical and experimental parametric study of inlet and outlet positions of a ventilated cavity and showed how to improve environmental parameters such as temperature and contaminant concentration inside the cavity. More recently Xaman et al (2009) presented results of a numerical study to find the optimum ventilation configuration for overall ventilation effectiveness for temperature distribution inside a ventilated cavity.…”

Section: Problem Formulation: Fluid Flow In a Cavitymentioning

confidence: 99%