Results 41 to 50 of about 5,350,206 (351)

The Stokes conjecture for waves with vorticity [PDF]

open access: yes, 2012
We study stagnation points of two-dimensional steady gravity free-surface water waves with vorticity. We obtain for example that, in the case where the free surface is an injective curve, the asymptotics at any stagnation point is given either by the “
Almgren   +25 more
core   +2 more sources

Oscillatory Flow Near a Stagnation Point [PDF]

open access: yesSIAM Journal on Applied Mathematics, 2003
The classical Hiemenz solution describes incompressible two-dimensional stagnation point flow at a solid wall. We consider an unsteady version of this problem, examining particularly the response close to the wall when the solution at infinity is modulated in time by a periodic factor of specified amplitude and frequency. While this problem has already
Blyth, M.G., Hall, P.
openaire   +3 more sources

Current Trends and Future Perspective for Cold Spray Metal‐Ceramic Composites

open access: yesAdvanced Engineering Materials, EarlyView.
The use of cold spray (CS) technology for creating cermet deposits, combining ceramic and metallic components, is advancing rapidly. Cermets offer excellent temperature handling and erosion resistance for diverse applications. This review outlines the current state of the art, focusing on the deposition dynamics and strategies to optimize the ...
Romario A. Wicaksono   +2 more
wiley   +1 more source

Novel approach to characterize the cross‐linking effect of liquid silicone rubber via cavity pressure analysis during injection molding

open access: yesJournal of Applied Polymer Science, Volume 140, Issue 4, January 20, 2023., 2023
In this paper, the cross‐linking reaction during the processing of liquid silicone rubber in the injection molding process is illustrated by measuring the cavity pressure. This shows a characteristic curve when derived twice. This curve is attributable to cross‐linking. With this knowledge, processes can be optimized and costs saved.
Dennis F. Weißer   +3 more
wiley   +1 more source

The symmetry for two class of steady stratified periodic water waves [PDF]

open access: yesarXiv, 2022
In this paper, we mainly consider two class of travelling stratified periodic water waves, one with negative (or without) surface tension and the other with constant Bernoulli's function and stagnation points. We first establish the symmetry result for stratified water waves with negative (or without) surface tension, but without stagnation by using ...
arxiv  

Impinging Howarth stagnation-point flows

open access: yesEuropean Journal of Mechanics - B/Fluids, 2019
The flow of one Howarth stagnation-point flow impinging directly on another Howarth stagnation-point flow is studied, and an exact similarity solution to the Navier-Stokes equations is found. The upper layer fluid has density ρ1 and kinematic viscosity ʋ1 while the lower layer fluid has density ρ2 and kinematic viscosity ʋ2 and the two fluids are ...
Turner, M. R., Weidman, P. D.
openaire   +5 more sources

Aerosol Deposition in the Vicinity of a Stagnation Point [PDF]

open access: yesAerosol Science and Technology, 1990
A method is presented to compute the trajectories of aerosol particles in the vicinity of a stagnation point and thus to obtain their rates of deposition. According to this method a particle starts its motion on the initial streamline, moves from one streamline to another under the influence of inertia, and touches the collector surface while on the ...
M. Fichman, C. Gutfinger, D. Pnueli
openaire   +2 more sources

Unsteady Three-Dimensional MHD Non-Axisymmetric Homann Stagnation Point Flow of a Hybrid Nanofluid with Stability Analysis

open access: yesMathematics, 2020
The hybrid nanofluid under the influence of magnetohydrodynamics (MHD) is a new interest in the industrial sector due to its applications, such as in solar water heating and scraped surface heat exchangers.
N. A. Zainal   +3 more
semanticscholar   +1 more source

Material Challenges and Alloy Selection for Particle/s‐CO2 Heat Exchangers in Concentrated Solar Power Systems

open access: yesAdvanced Engineering Materials, EarlyView.
Combining supercritical CO2 (s‐CO2) cycles with particle‐based heat transfer media holds great potential in concentrated solar power plants but poses enormous material challenges. The particle/s‐CO2 heat exchanger must withstand extreme conditions, including high temperatures, pressures, CO2 corrosion, and erosion.
Mathias Christian Galetz   +5 more
wiley   +1 more source

Size Specific Trapping at a Convergent Stagnation Point [PDF]

open access: yesBiophysical Journal, 2013
DNA has been observed to be trapped at a convergent stagnation point created by opposite rotating vortices in simulations based on the lattice-Boltzmann method using a bead-spring model for the DNA. Previous work has successfully separated polymers whose length differs by a factor of 2.
Jennifer Kreft Pearce, Sarah Jeanfavre
openaire   +2 more sources

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