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Turbulent flow of a...
Abstract
Subject headings
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- Suspensions of solid particles are frequently found in applications and environmental flows. Several studies concern the rheological properties of suspensions in laminar flows, but much less is known of turbulent suspensions. The present work fills this gap providing DNS data on dense suspensions of neutrally-buoyant rigid sphere in a turbulent channel flow at the bulk Reynolds number of Re = U0h/ν = 2800. We show that considering volume fractions Φ ≤ 0.1 the turbulent flow is similar to the unladen case with higher turbulence intensities. On the contrary, the flow behavior strongly changes at Φ = 0.2where the turbulence appears to be attenuated.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering (hsv//eng)
Keyword
- Channel flow
- Laminar flow
- Pipe flow
- Reynolds number
- Turbulence
- Turbulent flow
- Buoyant rigid sphere
- Dense suspension
- Environmental flow
- Rheological property
- Spherical particle
- Turbulence intensity
- Turbulent channel flows
- Turbulent suspension
- Suspensions (fluids)
Publication and Content Type
- ref (subject category)
- kon (subject category)
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