Results 31 to 40 of about 2,751,374 (249)
Journal of Physical Oceanography, 2018 Ocean surface roughness and whitecaps are driven by the ocean surface wind stress; thus, their values calculated from the wind speed input may vary significantly depending on the drag coefficient formula applied.
P. Hwang
semanticscholar +1 more source
Computational investigation on drag coefficient and pressure distribution of the truck with add-on
Ain Shams Engineering JournalThe current demand for reducing the drag coefficient represents one of the most significant challenges for all truck manufacturers. Fuel consumption can be improved via aerodynamic effects, which lower the vehicle’s drag coefficient.
M.S. Karthik +6 more
doaj +1 more source
Effect of pulsatile flow to drag of a two-dimensional bluff body
Nihon Kikai Gakkai ronbunshu, 2021 Drag and velocity measurement on a two-dimensional bluff body has been performed in a pulsatile flow. Circular and rectangular cylinders were selected in the present study.
Kouki ISERI +2 more
doaj +1 more source
Two-dimensional flow of foam around an obstacle: force measurements
, 2005 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
Benjamin Dollet +17 more
core +2 more sources
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
Energy and momentum relaxation of heavy fermion in dense and warm plasma
, 2010 We determine the drag and the momentum diffusion coefficients of heavy fermion in dense plasma. It is seen that in degenerate matter drag coefficient at the leading order mediated by transverse photon is proportional to $(E-\mu)^2$ while for the ...
Abhee K. Dutt-Mazumder +5 more
core +1 more source
Investigation of the aerodynamic characteristics of a lifting body in ground proximity [PDF]
, 2016 The use of cambered hull shapes in the next generation of lighter-than-air vehicles to enhance aerodynamic performance, together with optimized take-off manoeuvre profiles, will require a more detailed understanding of ground proximity effects for such
Garry, Kevin P. +2 more
core +1 more source
Space WeatherSatellite drag coefficients are crucial for determining the neutral mass densities that affect spacecraft operations in the thermosphere. Many studies typically utilize a constant drag coefficient of 2.2 to calculate the neutral density.
Xin Wang +9 more
doaj +1 more source
气体物理Drag reduction for flows over blunt bodies has always been a hot topic of research in aerospace and other fields, which is very important to improve aircraft performance and reduce energy consumption.
Qiujing HU, Yan WANG
doaj +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