Publications associées à Boundary layer thickness

Optimized Electrolyte Loading and Active Film Thickness for Sandwich Polymer Light-Emitting Electrochemical Cells

Frank Nüesch, Roland Hany, Matthias Diethelm

Effects of ion concentration and active layer thickness play a critical role on the performance of light-emitting electrochemical cells. Expanding on a pioneering materials system comprising the super yellow (SY) polymer and the electrolyte trimethylolprop ...

2019

Exact invariant solution reveals the origin of self-organized oblique turbulent-laminar stripes

Tobias Schneider, Florian Reetz, Tobias Klaus Kreilos

Wall-bounded shear flows transitioning to turbulence may self-organize into alternating turbulent and laminar regions forming a stripe pattern with non-trivial oblique orientation. Different experiments and flow simulations identify oblique stripe patterns ...

2019

Roll-up region of tip vortex: numerical investigation

Mohamed Farhat, Azin Amini, Matthieu Dreyer, Martino Reclari

The appearance of gas-filled vortices at the tip of hydraulic machines blades is usually associated with increase of losses, vibrations, noise and erosion risk. The understanding of the roll-up region, where the boundary layer on the pressure side crosses ...

IOP PUBLISHING LTD2019

Compliant riblets: Problem formulation and effective macrostructural properties

Giuseppe Antonio Zampogna, Alessandro Bottaro

Small-scale, deformable riblets, embedded within the viscous sublayer of a turbulent boundary layer and capable to adapt to the overlying motion, are studied. The wall micro-grooves are made of a linearly elastic material and can undergo small deformations ...

2019

The Reduced Immersed Method for Real-Time Fluid-Elastic Solid Interaction and Contact Simulation

Christopher Brandt

We introduce the Reduced Immersed Method (RIM) for the real-time simulation of two-way coupled incompressible fluids and elastic solids and the interaction of multiple deformables with (self-)collisions. Our framework is based on a novel discretization of ...

ASSOC COMPUTING MACHINERY2019

On the hysteresis of cavitation incipience and desinence in hydraulic machines

Mohamed Farhat, Ali Amini, Martino Reclari

The omnipresent vortical structures in hydraulic machines are extremely prone to the occurrence of cavitation. It is well known that besides the flow parameters, the incipience, development, and disappearance of cavitation within a vortex is very sensitive ...

IOP PUBLISHING LTD2019

Numerical investigation of the convection heat transfer driven by airflows in underground tunnels

Lyesse Laloui, Alessandro Francesco Rotta Loria, Margaux Marie Valérie Peltier

This study presents a fundamental investigation of the convection heat transfer phenomenon driven by airflows in underground tunnels, with reference to the development of the so-called thermal and velocity boundary layers. The purpose of the work is to exp ...

PERGAMON-ELSEVIER SCIENCE LTD2019

Slickwater hydraulic fracture propagation: near-tip and radial geometry solutions

Brice Tanguy Alphonse Lecampion, Haseeb Zia

We quantify the importance of turbulent flow on the propagation of hydraulic fractures (HF) accounting for the addition of friction reducing agents to the fracturing fluid (slickwater fluid). The addition in small quantities of a high molecular weight poly ...

2019

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Boundary layer thickness

Optimized Electrolyte Loading and Active Film Thickness for Sandwich Polymer Light-Emitting Electrochemical Cells

Exact invariant solution reveals the origin of self-organized oblique turbulent-laminar stripes

Roll-up region of tip vortex: numerical investigation

Compliant riblets: Problem formulation and effective macrostructural properties

The Reduced Immersed Method for Real-Time Fluid-Elastic Solid Interaction and Contact Simulation

On the hysteresis of cavitation incipience and desinence in hydraulic machines

Numerical investigation of the convection heat transfer driven by airflows in underground tunnels

Large-Eddy Simulations of the Steady Wintertime Antarctic Boundary Layer

Slickwater hydraulic fracture propagation: near-tip and radial geometry solutions

Turbulent patterns in wall-bounded shear flows: invariant solutions and their bifurcations

Graph Chatbot

Chattez avec Graph Search

Numerical investigation of the convection heat transfer driven by airflows in underground tunnels

Slickwater hydraulic fracture propagation: near-tip and radial geometry solutions

Large-Eddy Simulations of the Steady Wintertime Antarctic Boundary Layer

Turbulent patterns in wall-bounded shear flows: invariant solutions and their bifurcations

Optimized Electrolyte Loading and Active Film Thickness for Sandwich Polymer Light-Emitting Electrochemical Cells

Exact invariant solution reveals the origin of self-organized oblique turbulent-laminar stripes

Compliant riblets: Problem formulation and effective macrostructural properties

Roll-up region of tip vortex: numerical investigation

The Reduced Immersed Method for Real-Time Fluid-Elastic Solid Interaction and Contact Simulation

On the hysteresis of cavitation incipience and desinence in hydraulic machines