Results 51 to 60 of about 32,763 (309)
Numerical calculation of boundary layers and wake characteristics of high-speed trains with different lengths. [PDF]
PLoS ONE, 2017 Trains with different numbers of cars running in the open air were simulated using the delayed detached-eddy simulation (DDES). The numbers of cars included in the simulation are 3, 4, 5 and 8.
Lirong Jia, Dan Zhou, Jiqiang Niu
doaj +1 more source
Experimental and modelling investigation of the deformation, drag and break-up of drizzle droplets subjected to strong aerodynamics forces in relation to SLD aircraft icing [PDF]
, 2005 The distortion, drag and break-up of drizzle droplets subjected to strong aerodynamic forces was investigated to understand the pre-impact behaviour of droplets in aircraft icing from supercooled freezing drizzle.
Luxford, Geoffrey
core
A Dislocation Perspective on Strength and Toughness in Ceramics
Advanced Engineering Materials, EarlyView.Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley +1 more source
Evaluation drag coefficients for circular patch vegetation with different riverbed roughness
Cogent Engineering, 2022 The drag coefficient of a one-line circular patch of emergent sparse vegetation in an open-channel flow or riverbeds with varying bed roughness sizes was experimentally investigated.
Karim R. Gubashi +3 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.This study applies machine learning regression to predict chromium layer thickness in decorative trivalent chromium electroplating, using 441 experiments from laboratory‐scale (1L) and pilot‐scale (14L) setups. Tree‐based models, particularly CatBoost, outperformed linear regression by capturing nonlinear parameter interactions (R2$R^2$ up to 0.77 ...
Christoph Baumer +4 more
wiley +1 more source
Turbulators and Coefficient of Drag [PDF]
International Scholastic Journal of ScienceTurbulators have been shown to reduce the drag force on an object moving through a fluid. The relationship between the number of turbulators and the coefficient of drag of a sphere moving through water is investigated here.
Piyasak Chantabhakdi +3 more
doaj
Advanced Functional Materials, EarlyView.This paper presents a digital microfluidics‐based technique for transferring and reconfiguring soft nanomembranes. Laser‐machined nanothin membranes are picked up, transported, and aligned via tailored surface tension and the actuation of water droplets, enabling the development of flexible electronics, the integration of functional materials on 3D ...
Quang Anh Nguyen +15 more
wiley +1 more source
Calculation and uncertainty analysis method for airfoil drag coefficient considering compressibility
AIP AdvancesIn order to meet the need of evaluating the effectiveness of airfoil drag reduction design, the calculation and uncertainty analysis method for airfoil drag coefficient considering compressibility is studied.
Yufeng Du +4 more
doaj +1 more source
Drag coefficients with applications to satellite orbits [PDF]
, 1989 In the last twenty or so years the results of theory and experiment have produced much information on the characteristics of gas-surface interactions relevant to a satellite in hyperthermal free-molecular flow. This thesis contains reviews of the rarefied gas dynamics applicable to satellites and has attempted to compare existing models of gas-surface ...
openaire +2 more sources
Drag Coefficients of Golf Balls
World Journal of Mechanics, 2018 Drag across a golf ball can affect distance traveled when hitting a ball. An average golf ball will have a drag coefficient of, 0.24 35 m/s. This research found that a significantly deeper dimple pattern will greatly affect the boundary layer, thus changing the drag coefficient and boundary layer.
Peter E. Jenkins +3 more
openaire +2 more sources