Results 41 to 50 of about 262,236 (353)

Unsteady Magnetohydrodynamic Stagnation Point Flow of a Nanofluid over a Slendering Stretching Sheet Using Buongiorno’s Model [PDF]

open access: yesInternational Journal of Research in Industrial Engineering, 2018
This paper aimed to model and analyze the unsteady hydromagnetic boundary layer stagnation point nanofluid flow over a non-linear stretching surface through porous medium with variable wall thickness.
R. V. M. S. S. Kiran Kumar   +2 more
doaj   +1 more source

A Wind Tunnel Experimental Study on the Icing Characteristics of a Cylinder Rotating around a Vertical Axis

open access: yesApplied Sciences, 2021
Rotating machinery in cold and humid regions is prone to icing. For exploring the characteristics of icing on objects rotating around a vertical axis, such as vertical axis wind turbines (VAWT), a cylinder rotating around the vertical axis was selected ...
Wenfeng Guo   +4 more
doaj   +1 more source

Stress singularities and the formation of birefringent strands in stagnation flows of dilute polymer solutions

open access: yes, 2009
We consider stagnation point flow away from a wall for creeping flow of dilute polymer solutions. For a simplified flow geometry, we explicitly show that a narrow region of strong polymer extension (a birefringent strand) forms downstream of the ...
Alexander N. Morozov   +21 more
core   +2 more sources

Numerical Investigation on the Effect of Blockage on the Icing of Airfoils

open access: yesAerospace, 2022
The blockage is one of the important factors affecting the icing of airfoils in wind tunnel tests. In this paper, numerical simulations are conducted to study the effect of blockage on the icing of different airfoils.
Daixiao Lu   +4 more
doaj   +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

Stagnation–saddle points and flow patterns in Stokes flow between contra-rotating cylinders [PDF]

open access: yes, 1998
The steady flow is considered of a Newtonian fluid, of viscosity mu, between contra-rotating cylinders with peripheral speeds U-1 and U-2 The two-dimensional velocity field is determined correct to O(H-0/2R)(1/2), where 2H(0) is the minimum separation of
Gaskell, P.H.   +2 more
core   +1 more source

Effect of gas blowing on the head of thermal ablation vehicle

open access: yesAdvances in Aerodynamics, 2022
The reentry vehicle will encounter thermal ablation, especially at the stagnation point regime. A theoretical work has been done to analyze the thermal effect of gas blowing due to thermal ablation of surface material on the head of a general hypersonic ...
Qing Li   +3 more
doaj   +1 more source

Evolution of disturbances in stagnation-point flow [PDF]

open access: yesJournal of Fluid Mechanics, 1994
The evolution of three-dimensional disturbances in an incompressible three-dimensional stagnation-point flow in an inviscid fluid is investigated. Since it is not possible to apply classical normal-mode analysis to the disturbance equations for the fully three-dimensional stagnation-point flow to obtain solutions, an initial-value problem is solved ...
Thomas L. Jackson   +2 more
openaire   +3 more sources

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

Quantitative determination of the leaching range of in-situ leaching mining area by stagnation point

open access: yesNuclear Engineering and Technology
The leaching range is critical to the leaching efficiency, production cost and environmental effect of in-situ leaching of uranium. In this study, the groundwater dynamics of the well-site was simulated to determine the leaching range in condition of ...
Chong Zhang   +7 more
doaj   +1 more source

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