Results 21 to 30 of about 254,963 (201)

Validation of actuator disc circulation distribution for unsteady virtual blades model

open access: yesTheoretical and Applied Mechanics Letters, 2021
The actuator disc method is an engineering approach to reduce computer resources in computational fluid dynamics (CFD) simulations of helicopter rotors or aeroplane propellers.
A. N. Kusyumov   +3 more
doaj   +1 more source

Single-layer Axisymmetric Model for a Hadley Circulation with Parameterized Eddy Momentum Forcing

open access: yesJournal of Advances in Modeling Earth Systems, 2009
An axisymmetric single-layer model is used to study interactions of the Hadley circulation with extratropical eddies. Eddy momentum fluxes are parameterized using a simple closure motivated by calculations with an idealized dry general circulation model (
Adam Sobel, Tapio Schneider
doaj   +1 more source

Multisymplectic formulation of fluid dynamics using the inverse map [PDF]

open access: yes, 2007
We construct multisymplectic formulations of fluid dynamics using the inverse of the Lagrangian path map. This inverse map, the ‘back-to-labels’ map, gives the initial Lagrangian label of the fluid particle that currently occupies each Eulerian position.
Cotter, CJ, Holm, DD, Hydon, PE
core   +2 more sources

Effects of Salinity Variability on Recent El Niño Events

open access: yesAtmosphere, 2019
Ocean salinity variability provides a new way to study the evolution of the the El Niño-Southern Oscillation (ENSO). Comparisons between the salinity variation and related processes responsible for sea surface temperature anomaly (SSTA) were ...
Hai Zhi   +3 more
doaj   +1 more source

Fluid Dynamic Relationships Involved in Circulation Cleaning

open access: yesJournal of Dairy Science, 1968
Abstract Removal of milk deposits on metal pipes using only fluid flow, without benefit of detergent materials, was studied. Soil removal rate was linear at flow rates between 4,000 and 30,000 kg/hour, representing Reynolds Numbers of from 85,000 to 600,000, demonstrating that cleaning effectiveness steadily improved as the pumping rate increased. Use
D.J. Hankinson, C.E. Carver
openaire   +1 more source

Hamiltonian approach to hybrid plasma models [PDF]

open access: yes, 2010
The Hamiltonian structures of several hybrid kinetic-fluid models are identified explicitly, upon considering collisionless Vlasov dynamics for the hot particles interacting with a bulk fluid.
Cesare Tronci   +8 more
core   +1 more source

Optimal Design and Operation of Dual-Ejector PEMFC Hydrogen Supply and Circulation System

open access: yesEnergies, 2022
A proton exchange membrane fuel cell (PEMFC) system requires an adequate hydrogen supply and circulation to achieve its expected performance and operating life.
Li Chen   +4 more
doaj   +1 more source

The motion of solid bodies in potential flow with circulation: a geometric outlook [PDF]

open access: yes, 2008
The motion of a circular body in 2D potential flow is studied using symplectic reduction. The equations of motion are obtained starting front a kinetic-energy type system on a space of embeddings and reducing by the particle relabelling symmetry group ...
Kanso, Eva   +2 more
core   +3 more sources

TO THE QUESTION OF CONTROL OF HYDRAULIC MODES OF THE HEAT NETWORK

open access: yesInternational Journal of Advanced Studies, 2019
The mathematical modeling program Computational fluid dynamics is used. Research allows you to take into account all the factors affecting changes in hydrostatic pressure, to study the interaction process of the circulation pump, make-up unit and the ...
Alexey Andreevich Alekseev   +1 more
doaj   +1 more source

Boundary Zonal Flow in Rotating Turbulent Rayleigh-Bénard Convection [PDF]

open access: yes, 2019
For rapidly rotating turbulent Rayleigh–Bénard convection in a slender cylindrical cell, experiments and direct numerical simulations reveal a boundary zonal flow (BZF) that replaces the classical large-scale circulation.
Ahlers, Guenter   +9 more
core   +3 more sources

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