Multiphase Interactions
Multiphase flows are made up of a combination of the different states of matter, e.g. solids in liquids, liquids & gases, solids in gases, plasmas & gases, and so forth. These flows are all around us - wind driving the formation of ocean waves, debris flows and landslides occurring after a saturating rain, the bubbly flows associated with boat propellors,, sediment transport in streams and rivers - and the inherent complexity of these natural and engineered examples mean these flows are still very active topics of study. SAFL researchers use experimental facilities like CloudIA, the wind tunnel, and our assorted flumes and channels to help quantify the nature and behavior of different multiphase flows, while also using numerical techniques and simulations to better visualize these interactions and predict their behavior.
SAFL Affiliated Faculty
Roger Arndt
John Gulliver
Kimberly Hill
Jiarong Hong
Lian Shen
SAFL Researchers
Jeffrey Marr
Read more about SAFL multiphase related projects/research:
(filter "multiphase interactions" if needed)
Evaluating the effectiveness of pretreatment practices for rain gardens
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The purpose of this project was to evaluate the effectiveness of different pretreatment devices in Minnesota. The objective was to gather quantitative data using a common method that will allow for comparisons across devices.
Evaluating permeable pavement as an alternative to road salt application
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The Minnesota Department of Transportation tasked SAFL researchers with evaluating the use of unsalted permeable pavement in comparison to traditional impermeable salted pavement. Permeable pavement refers to a surface where water can infiltrate into pavement and ultimately become groundwater, rather than running off pavement into the stormwater system.
Broadway Pump Station Physical Model
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After a 2011 flood caused extensive damage in Minot, North Dakota, MWH Americas, Inc. was hired to design a pumping station as part of the Mouse River Enhanced Flood Protection Plan, to pump stormwater over the river levee during flood events. The applied engineering team at the St. Anthony Falls Laboratory was then tasked to build a physical model of the proposed pumping station to identify and mitigate unanticipated/unacceptable flow patterns prior to construction.
Long-throated U-flume study
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SAFL researchers built a scale model of a round-bottomed long-throated flume, in order to validate Winflume software for this specific flume geometry.