Results 21 to 30 of about 5,350,206 (351)

Nested separatrices in simple shear flows: the effect of localized disturbances on stagnation lines [PDF]

open access: yes, 2005
The effects of localized two-dimensional disturbances on the structure of shear flows featuring a stagnation line are investigated. A simple superposition of a planar Couette flow and Moffatt's [J. Fluid Mech.
Gaskell, P.H.   +2 more
core   +1 more source

A Combined Convection Carreau–Yasuda Nanofluid Model over a Convective Heated Surface near a Stagnation Point: A Numerical Study

open access: yes, 2021
The focus of this manuscript is on two-dimensional mixed convection non-Newtonian nanofluid flow near stagnation point over a stretched surface with convectively heated boundary conditions.
A. Hussain   +6 more
semanticscholar   +1 more source

Mixed Convection Flow of Powell–Eyring Nanofluid near a Stagnation Point along a Vertical Stretching Sheet

open access: yesMathematics, 2021
A stagnation-point flow of a Powell–Eyring nanofluid along a vertical stretching surface is examined. The buoyancy force effect due to mixed convection is taken into consideration along with the Brownian motion and thermophoresis effect.
Nadhirah Abdul Halim   +1 more
semanticscholar   +1 more source

Stagnation point von Kármán coefficient [PDF]

open access: yesPhysical Review E, 2009
On the basis of various direct numerical simulations (DNS) of turbulent channel flows the following picture is proposed. (i) At a distance y from either wall, the Taylor microscale lambda is proportional to the average distance l(s) between stagnation points of the fluctuating velocity field, i.e., lambda(y)=B(1)l(s)(y) with B(1) constant, for delta(nu)
Vassilios Dallas   +2 more
openaire   +3 more sources

Analytic Adjoint Solutions for the 2D Incompressible Euler Equations Using the Green's Function Approach [PDF]

open access: yesJournal of Fluid Mechanics 943 (2022) A22, 2022
The Green's function approach of Giles and Pierce is used to build the lift and drag based analytic adjoint solutions for the two-dimensional incompressible Euler equations around irrotational base flows. The drag-based adjoint solution turns out to have a very simple closed form in terms of the flow variables and is smooth throughout the flow domain ...
arxiv   +1 more source

Stagnation-point flow past a shrinking sheet in a nanofluid. [PDF]

open access: yes, 2011
In this paper, the stagnation-point flow and heat transfer towards a shrinking sheet in a nanofluid is considered. The nonlinear system of coupled partial differential equations was transformed and reduced to a nonlinear system of coupled ordinary ...
Jaradat, Mihaela   +3 more
core   +1 more source

Mixed Convective Stagnation Point Flow towards a Vertical Riga Plate in Hybrid Cu-Al2O3/Water Nanofluid

open access: yesMathematics, 2020
The present work highlights the stagnation point flow with mixed convection induced by a Riga plate using a Cu-Al 2 O 3 /water hybrid nanofluid. The electromagnetohydrodynamic (EMHD) force generated from the Riga plate was influential in the heat ...
N. Khashi’ie   +2 more
semanticscholar   +1 more source

Vortex shedding in a two-dimensional diffuser: theory and simulation of separation control by periodic mass injection [PDF]

open access: yes, 2004
We develop a reduced-order model for large-scale unsteadiness (vortex shedding) in a two-dimensional diffuser and use the model to show how periodic mass injection near the separation point reduces stagnation pressure loss.
Colonius, Tim   +2 more
core   +1 more source

Facile Synthesis of Uranium Complexes with a Pendant Borane Lewis Acid and 1,2‐Insertion of CO into a U−N Bond

open access: yesAngewandte Chemie, Volume 134, Issue 51, December 19, 2022., 2022
Reactions between the highly strained uranacycle I with various boranes afford unprecedented uranium complexes bearing either a pendant borate or a pendant borane Lewis acid. The latter promotes the 1,2‐insertion of CO into a UIV‐N bond. Abstract In this contribution, we illustrate uranium complexes bearing a pendant borate (i.e.
Wei Su   +4 more
wiley   +2 more sources

MHD oblique stagnation-point flow of a Newtonian fluid [PDF]

open access: yes, 2011
The steady two-dimensional oblique stagnation-point flow of an electrically conducting Newtonian fluid in the presence of a uniform external electromagnetic field (E0, H0) is analyzed, and some physical situations are examined.
Borrelli, Alessandra   +2 more
core   +1 more source

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