Results 101 to 110 of about 452,313 (293)
Minimalist turbulent boundary layer model [PDF]
Physical Review E, 2009 We introduce an elementary model of a turbulent boundary layer over a flat surface, given as a vertical random distribution of spanwise Lamb-Oseen vortex configurations placed over a non-slip boundary condition line. We are able to reproduce several important features of realistic flows, such as the viscous and logarithmic boundary sublayers, and the ...
openaire +3 more sources
Advanced Electronic Materials, EarlyView.This work maps and optimizes aerosol‐jet printing of PEDOT:PSS on flexible polyimide. By co‐tuning carrier and sheath gas flows, print speed, and solvent composition with surface activation, continuous, uniform microlines with sharp edges and minimal overspray are achieved.
Md Shariful Islam +2 more
wiley +1 more source
A multiple-time-scale turbulence model based on variable partitioning of turbulent kinetic energy spectrum [PDF]
A multiple-time-scale turbulence model of a single point closure and a simplified split-spectrum method is presented. In the model, the effect of the ratio of the production rate to the dissipation rate on eddy viscosity is modeled by use of the multiple-
Chen, C.-P., Kim, S.-W.
core +1 more source
Interface Engineering Strategies for Realizing Anode‐Free Sodium Batteries: A Review
Advanced Energy Materials, EarlyView.This review examines anode‐free sodium batteries as a promising solution for advancing sodium‐based energy storage. It focuses on the role of interface engineering in addressing challenges such as sodium deposition, interface stability, and dendrite growth.
Yulian Dong +6 more
wiley +1 more source
Investigation of the effect of turbulence models for CFD simulations of dynamic airfoils
Gazi Üniversitesi Fen Bilimleri DergisiThis study presents a numerical investigation into the aerodynamic behavior of a pitching NACA 0012 airfoil under dynamic conditions. The analysis was carried out using a sliding mesh method in Fluent, incorporating sinusoidal pitching motion with ...
Sinem Keskin , Mustafa Serdar Genç
doaj +1 more source
Scalable Liquid‐Phase Exfoliation of h‐BN for Solar‐Reflective and Thermally Stable Polymer Aerogels
Advanced Energy and Sustainability Research, EarlyView.High‐pressure homogenization exfoliates hexagonal boron nitride (h‐BN) into stable nanosheets, which are incorporated into PVA, CMC, and HEC matrices to form lightweight composite aerogels. Tuning h‐BN loading (0–50 wt%) transforms the structure from porous to densely packed, tailoring optical, thermal, and mechanical properties. An optimized PVA/20 wt%
Mouza Alaryani +6 more
wiley +1 more source
An algebraic model for prediction of bypass and separation-induced transition in turbomachinery boundary layers [PDF]
, 2016 An algebraic intermittency model for bypass and separation-induced transition is presented. The model modifies the production terms of a k-omega turbulence model. It uses only local variables and is tuned for turbomachinery flows.
Dick, Erik, Kubacki, Slawomir
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Topological Properties of International Commodity Market: How Uncertainty Affects the Linkages?
Agribusiness, EarlyView.ABSTRACT The study aims to explore the network topology of the international commodity market by examining the interconnections among 21 commodity futures across various categories, including energy, precious and industrial metals, and agriculture. We analyze the market structure of these commodity futures under both low and high uncertainty conditions
Ibrahim Yagli, Bayram Deviren
wiley +1 more source
Noise produced by turbulent flow into a rotor: Theory manual for atmospheric turbulence prediction and mean flow and turbulence contraction prediction [PDF]
Prediction of helicopter main rotor noise due to ingestion of atmospheric turbulence was analyzed. The analysis combines several different models that describe the fluid mechanics of the turbulence and the ingestion process.
Simonich, J. C.
core +1 more source
MathematicsNumerical simulations were conducted to investigate high-pressure water jets in air. The Eulerian multiphase model was employed as the computational framework.
Xianglong Yang, Lei Yang
doaj +1 more source