Results 271 to 280 of about 5,312,570 (354)

DDES analysis of unsteady flow evolution and pressure pulsation at off-design condition of a centrifugal pump

open access: yesRenewable Energy, 2020
In the present paper, to investigate unsteady flow structures and pressure pulsations at off-design conditions, a low specific speed centrifugal pump is investigated by the DDES (Delayed Detached Eddy Simulation) method.
Ning Zhang, Xiaokai Liu
exaly   +2 more sources

Unsteady flow characteristics regarding hump instability in the first stage of a multistage pump-turbine in pump mode

open access: yesRenewable Energy, 2018
This article reports the fluid-dynamical analyses of unsteady flow in the first stage of a multistage pump-turbine where hump instability occurs. This stage can be seen as a centrifugal pump with multistage guide vanes in pump mode.
Giorgio Pavesi
exaly   +2 more sources

The performance and hydrodynamics in unsteady flow of a horizontal axis tidal turbine

open access: yesRenewable Energy, 2019
This paper presents the effect of idealised unsteady tidal velocities on the performance of a newly-designed Horizontal-Axis Tidal Turbine (HATT) through the use of numerical simulations using Computational Fluid Dynamics (CFD). Simulations are conducted
Binoe E Abuan, Robert J Howell
exaly   +2 more sources
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Unsteady Flow

Mechanics of Fluids, 2018
Bernard S. Massey, John Ward-Smith
semanticscholar   +3 more sources

Unsteady flow and heat transfer past a stretching/shrinking sheet in a hybrid nanofluid

International Journal of Heat and Mass Transfer, 2019
The unsteady flow and heat transfer past a stretching/shrinking sheet in a hybrid nanofluid is studied. The governing equations of the problem are transformed to the similarity equations by using similarity transformation technique. The problem is solved
I. Waini, Anuar Ishak, I. Pop
semanticscholar   +1 more source

Unsteady flow volumes

Proceedings Visualization '95, 2002
Flow volumes are extended for use in unsteady (time-dependent) flows. The resulting unsteady flow volumes are the 3 dimensional analog of streamlines. There are few examples where methods other than particle tracing have been used to visualize time varying flows.
Becker, B.G., Lane, D.A., Max, N.L.
openaire   +1 more source

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