Results 21 to 30 of about 304,668 (217)

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

open access: yesJ. Non-Newtonian Fluid Mech. 157 (2009) 126-132, 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 stagnation point in the UCM model and extensions, like the FENE-P model.
arxiv   +1 more source

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

Flow towards a Stagnation Region of a Vertical Plate in a Hybrid Nanofluid: Assisting and Opposing Flows

open access: yesMathematics, 2021
This study investigates a hybrid nanofluid flow towards a stagnation region of a vertical plate with radiation effects. The hybrid nanofluid consists of copper (Cu) and alumina (Al2O3) nanoparticles which are added into water to form Cu-Al2O3/water ...
Iskandar Waini, Anuar Ishak, Ioan Pop
doaj   +1 more source

Influence of Single- and Multi-Wall Carbon Nanotubes on Magnetohydrodynamic Stagnation Point Nanofluid Flow over Variable Thicker Surface with Concave and Convex Effects

open access: yesMathematics, 2020
This paper reports a theoretical study on the magnetohydrodynamic flow and heat exchange of carbon nanotubes (CNTs)-based nanoliquid over a variable thicker surface.
Anum Shafiq   +4 more
doaj   +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

Numerical Investigation of MWCNT and SWCNT Fluid Flow along with the Activation Energy Effects over Quartic Auto Catalytic Endothermic and Exothermic Chemical Reactions

open access: yesMathematics, 2022
A mathematical model is created to analyze the impact of Thompson and Troian slip boundaries over a contracting/expanding surface sustaining nanofluid-containing carbon nanotubes along a stagnation point flow.
Yasir Mehmood   +5 more
doaj   +1 more source

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 Flow Studies of Polymer Solutions in 2D System

open access: yesApplied Rheology, 2003
Stagnation flow studies form a key research area in numerous applications dealt with industry. When a fluid approaches a solid boundary, it undergoes severe deceleration along the axis of impingement.
Joshi Ketan, Wedgewood Lewis
doaj   +1 more source

Scaling group analysis on MHD effects on heat transfer near a stagnation point on a linearly stretching sheet with variable viscosity and thermal conductivity, viscous dissipation and heat source/sink [PDF]

open access: yesTheoretical and Applied Mechanics, 2015
The effects of variable viscosity and thermal conductivity on MHD heat transfer flow of viscous incompressible electrically conducting fluid near stagnation point flow on non-conducting stretching sheet in presence of uniform transfer magnetic ...
Dessie Hunegnaw, Naikoti Kishan
doaj   +1 more source

Leading-Edge Erosion and Floating Particles: Stagnation Point Simulation in Particle-Laden Turbulent Flow via Lagrangian Particle Tracking

open access: yesMachines, 2023
Since the stagnation point is subject to straining motion, this 3D experiment is an effort to simulate the stagnation plane, which applies to studying the particle erosion in rotary machine blades, such as wind turbines, gas turbines, and compressors ...
Reza Hassanian, Morris Riedel
doaj   +1 more source

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