Results 11 to 20 of about 380,610 (335)

Drag of a cylindrical object in a two-dimensional granular environment [PDF]

open access: yesEPJ Web of Conferences, 2021
The drag of a cylindrical object in a two-dimensional granular environment is numerically studied. It is found that the drag law is fitted by the sum of the yield force and the dynamic force, the latter of which is reproduced by a simple collision model.
Kubota Takumi   +2 more
doaj   +1 more source

Review of drag coefficients on gas – liquid tower: the drag coefficient independent and dependent on bubble diameter in bubble column experiment [PDF]

open access: yesChemical Review and Letters, 2019
Drag coefficient independent on bubble diameter is required to ease design sieve trays or bubble column, through simulation of computational fluid dynamic.
Reza Kakulvand
doaj   +1 more source

Drag force of circular cylinder blade wind turbines driven by steady lift force of longitudinal vortex

open access: yesNihon Kikai Gakkai ronbunshu, 2021
The effects of the configurations and structural parameters of the cylinder blade wind turbine driven by the steady lift force of the longitudinal vortex on its rotation and drag force characteristics were investigated.
Kasumi SAKAMOTO   +2 more
doaj   +1 more source

Modeling of the Drag Force in Polydisperse Gas–Solid Flow via an Efficient Supervised Machine Learning Approach

open access: yesApplied Sciences, 2023
Most granular flow in nature and industrial processing has the property of polydispersity, whereas we are always restricted to using the monodisperse drag force model in simulations since the drag force model with polydispersity is difficult to establish.
Xin Li   +3 more
doaj   +1 more source

Experimental study on drag characteristics of the practical rigid net under different current conditions

open access: yesFrontiers in Marine Science, 2023
The net structure of a cage is an important component to ensure the survival environment of aquaculture. In order to ensure the safety of the net, an experimental study on practical rigid nets is conducted in this paper. The drag force characteristics of
Songchen Yu   +9 more
doaj   +1 more source

Viscometer using drag force measurements [PDF]

open access: yesReview of Scientific Instruments, 2011
A robust and precise viscometer using the forces exerted by a laminar flow inside a small duct is presented: the force is measured on a long cylindrical sensor dipped into the flow. Two devices of respective volumes 1.4 and 0.031 ml have been realized, demonstrating that the technique is usable with small fluid volumes.
Semin, Benoît   +3 more
openaire   +3 more sources

Direct numerical simulation of the drag force in bubble swarms [PDF]

open access: yes, 2007
This paper studies the swarm effect on the drag force in bubbly flows. From literature it is well-known that for relatively small bubbles, the drag force increases with the bubble hold-up due to additional hindrance experienced by the bubbles caused by ...
Dijkhuizen, W.   +2 more
core   +7 more sources

Van der Waals Frictional Drag induced by Liquid Flow in Low- Dimensional Systems [PDF]

open access: yes, 2008
We study the van der Waals frictional drag force induced by liquid flow in low-dimensional systems (2D and 1D electron systems, and 2D and 1D channels with liquid). We find that for both 1D and 2D systems, the frictional drag force induced by liquid flow
A. I. Volokitin   +6 more
core   +3 more sources

NUMERICAL SIMULATION ON REAR SPOILER ANGLE OF MINI MPV CAR FOR CONDUCTING STABILITY AND SAFETY

open access: yesJurnal Ilmiah SINERGI, 2019
Spoiler attached on the rear part of a car can generate drag force and negative lift force, called downforce. This drag force can increase air resistance to the car, meanwhile, a negative lift force can improve the car’s stability and safety.
Alief Avicenna Luthfie   +3 more
doaj   +1 more source

Long-span Suspension Bridge Flutter Analysis ‎with Drag Force Effects [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2021
The paper investigates the influence of the drag force onto the flutter velocity and frequency of the Akashi Kaikyo Bridge. Finite element analyses were run in ANSYS by combining unsteady lift and moment actions with: (a) unsteady drag, (b) steady drag, (
Gianfranco Piana, Alberto Carpinteri
doaj   +1 more source

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