Results 121 to 130 of about 203,745 (355)
Two-dimensional flows of foam: drag exerted on circular obstacles and dissipation
, 2004 A Stokes experiment for foams is proposed. It consists in a two-dimensional flow of a foam, confined between a water subphase and a top plate, around a fixed circular obstacle. We present systematic measurements of the drag exerted by the flowing foam on
Aubouy, Miguel +5 more
core +2 more sources
Advanced Energy Materials, EarlyView.This review provides a bottom‐up evaluation of sodium‐ion battery safety, linking material degradation mechanisms, cell engineering parameters, and module/pack assembly. It emphasizes that understanding intrinsic material stability and establishing coordinated engineering control across hierarchical levels are vital for preventing degradation coupling ...
Won‐Gwang Lim +5 more
wiley +1 more source
Reduction of trimmed drag [PDF]
Methods are reported for reducing the aircraft drag coefficient for a given aircraft lift coefficient, or speed. The emphasis is placed in determining the load distribution between the wing-body combination and the tail which reduces overall drag ...
Lutze, F. H., Jr.
core +1 more source
Advanced Energy Materials, EarlyView.A fluorinated cyclic ether, FDOL, is shown to stabilize Mg metal anodes by tuning Mg2+ solvation of the G2 electrolyte. The G2‐FDOL electrolyte suppresses passivation and thick, diffusion‐blocking Mg deposits, enabling more uniform Mg plating/stripping and sustained interfacial reactions.
Hafiz Ahmad Ishfaq +9 more
wiley +1 more source
Enhancing the Efficiency of Horizontal Axis Wind Turbines Through Optimization of Blade Parameters
Journal of EngineeringIn this research, we delve into the promising potential of horizontal axis wind turbines to effectively meet the electricity needs of developing countries.
Hossein Seifi Davari +3 more
doaj +1 more source
Application of numerical optimization to the design of advanced supercritical airfoils [PDF]
An application of numerical optimization to the design of advanced airfoils for transonic aircraft showed that low-drag sections can be developed for a given design Mach number without an accompanying drag increase at lower Mach numbers. This is achieved
Hicks, R. M., Johnson, R. R.
core +1 more source
Cavitation Number as a Function of Disk Cavitator Radius: a Numerical Analysis of Natural Supercavitation [PDF]
, 2019 Due to the greater viscosity and density of water compared to air, the maximum speed of underwater travel is severely limited compared to other methods of transportation.
Prichard, Reid
core +1 more source
Did the Indian Green Revolution Change the Farm Size–Productivity Relationship?
Applied Economic Perspectives and Policy, EarlyView.ABSTRACT We examine the relationship between farm size and productivity during India's Green Revolution, a period of rapid technological transformation. Using a unique panel of over 5000 Indian farm households that spans the Green Revolution (1971–1999), we show that the classic (linear) inverse farm size–productivity relationship gradually evolved ...
Rabail Chandio, Leah E. M. Bevis
wiley +1 more source
A study on aerodynamic characteristics and visualization of flow field of lift-drag combined starter
Advances in Mechanical Engineering, 2019 This study refers to the modification of the aerodynamic characteristics of the starter for the lift-type vertical axis wind turbine, the structure of the traditional drag starter was improved, and the lift-drag combined starter model was proposed. Based
Fang Feng +4 more
doaj +1 more source