Results 101 to 110 of about 189,516 (302)

Quasi-steady vortical structures in vertically vibrating soap �lms [PDF]

, 1998
An analysis of the quasi-steady streaming of the liquid in a vertically vibrated horizontal soap film is reported. The air around the soap film is seen to play a variety of roles: it transmits normal and tangential oscillatory stresses to the film, damps
Higuera Antón, Francisco, Vega de Prada, José Manuel, Weidman, P. D.   +2 more
core   +1 more source

Optimal behavior of viscoelastic flow at resonant frequencies

, 2004
The global entropy generation rate in the zero-mean oscillatory flow of a Maxwell fluid in a pipe is analyzed with the aim at determining its behavior at resonant flow conditions.
A. A. Lambert, A. Bejan, A. Bejan, A. Bejan, A. Bejan, A. Rey, A.C. Baytas, G. Ibáñez, J. A. del Río, J.A. del Río, N. Sun, R.H. Hoffman, S. Cuevas, S.R. Groot, S.S. Niranjan, U.H. Kurzweg   +15 more
core   +1 more source

Geometry‐Dependent Adhesion in Transparent Monodomain Liquid Crystal Elastomers

Advanced Functional Materials, EarlyView.
Liquid Crystal Elastomers (LCEs) are emerging as exciting pressure‐sensitive adhesives. We examine adhesion in chemically identical elastomer films, exploring the influence of geometry (director orientation) and phase (nematic or isotropic). We demonstrate the potential of these aligned films as transparent, tunable, broad‐temperature‐range smart ...
Aidan Street, Devesh Mistry, Johan Mattsson, Helen F. Gleeson   +3 more
wiley   +1 more source

Reverse Steady Streaming Induced by a Freely Moving Wavy Wall

Fluids
In this work, we present a theoretical and experimental investigation of the fluid–structure interaction between a freely moving wall and an oscillatory flow. Our objective is to elucidate the coupling mechanism between the fluid and the oscillating body
José Carlos Domínguez-Lozoya, Sebastián Gutiérrez-Juárez, David Roberto Domínguez-Lozoya, Aldo Figueroa, Sergio Cuevas   +4 more
doaj   +1 more source

Horizontal-axis tidal turbine blade loading for multi-frequency oscillatory motion [PDF]

, 2012
This paper presents results from an experimental study which analysed the hydrodynamic response of the out-of-plane blade root bending moment for a horizontal-axis turbine exposed to multi-frequency oscillatory motion.
Day, A. H., Flay, R.G.J., Milne, I.A., Sharma, R.N.   +3 more
core  

Role of Histidine‐Containing Peptoids in Accelerating the Kinetics of Calcite Growth

Advanced Functional Materials, EarlyView.
Amphiphilic histidine‐containing peptoids mimic carbonic anhydrase (CA) to accelerate calcite step growth. In the presence of Zn2+, they promote the deprotonation of HCO3−, the desolvation of Ca2+, and the reorganization of interfacial hydration layers, thereby reducing the activation barrier for calcite growth.
Mingyi Zhang, Ying Chen, Chenyang Shi, Progyateg Chakma, James J. De Yoreo, Chun‐Long Chen   +5 more
wiley   +1 more source

Measurement of Heat Flow Transmitted through a Stacked-Screen Regenerator of Thermoacoustic Engine

Applied Sciences, 2017
A stacked-screen regenerator is a key component in a thermoacoustic Stirling engine. Therefore, the choice of suitable mesh screens is important in the engine design.
Shu Han Hsu, Tetsushi Biwa
doaj   +1 more source

Experimental investigation and analysis of two sources of nozzle-thrust misalignment [PDF]

, 1970
Asymmetry of nozzle's throat produces oscillatory type net side-force axial profile. Using mean values of localized static pressure and Mach number, scaling laws for flat-plate supersonic flow over protrusion are applied to nozzle expansion cone ...
Dowdy, M. W., Strand, L. D.
core   +1 more source

Block Copolymers: Emerging Building Blocks for Additive Manufacturing

Advanced Functional Materials, EarlyView.
This review addresses how block copolymer (BCP) physics and rheology have led to the widespread use of BCPs in advanced additive manufacturing techniques, with particular emphasis on the untapped potential of these nanostructured materials toward achieving multi‐scale architected materials with unique, programmable material properties.
Alice S. Fergerson, Hemish B. Thakkar, Jiaen Wu, Emily C. Davidson   +3 more
wiley   +1 more source

Numerical Predictions of Early Stage Turbulence in Oscillatory Flow across Parallel-Plate Heat Exchangers of a Thermoacoustic System

Applied Sciences, 2017
This work focuses on the predictions of turbulent transition in oscillatory flow subjected to temperature gradients, which often occurs within heat exchangers of thermoacoustic devices.
Fatimah A. Z. Mohd Saat, Artur J. Jaworski   +1 more
doaj   +1 more source