Results 1 to 10 of about 156,629 (308)

Turbulent channel flow near maximum drag reduction: simulations, experiments and mechanisms

, 2003
It is well known that the drag in a turbulent flow of a polymer solution is significantly reduced compared to Newtonian flow. Here we consider this phenomenon by means of a direct numerical simulation of a turbulent channel flow.
Hulsen, MA, Brule, van den, B.H.A.A., Hunt, J.C.R., Boersma, BJ, Nieuwstadt, FTM, Nieuwstadt, F.T.M., Hunt, JCR, Hulsen, M.A., Van Den Brule, BHAA, Patasinski, PK, Ptasinski, P.K., Boersma, B.J.   +11 more
core   +1 more source

solute-drag: Solute drag

, 2015
<p>The first release of my codes for solving the solute drag model</p ...
tegarwicaksono
core   +1 more source

Effectiveness of active flow control for turbulent skin friction drag reduction [PDF]

, 2011
The effectiveness of the opposition control method proposed by Choi et al. [J. Fluid Mech. 262, 75 (1994)] has been studied using direct numerical simulations.
Chung, Yongmann M., Talha, Tariq, Yongmann M. Chung, Tariq Talha   +3 more
core   +1 more source

An Empirical Model of Aerodynamic Drag in Alpine Skiing

Proceedings, 2018
This paper describes an empirical model of aerodynamic drag for a range of body positions commonly used in alpine skiing. In order to calculate the drag coefficient (CD), a method for calculating the frontal area of an alpine skier, inside a wind tunnel,
Ola Elfmark, Lars M. Bardal
doaj   +1 more source

Antimicrobial Activity of Lactobacillus plantarum Strains Isolated from Fermented Olives Origin

Journal of Medicinal Plants, 2009
Background: Lactobacillus plantarum isolated from fermented olives has been extensively studied with the aim of its use in starter cultures for olive or other production fermentations, but little is known about its antimicrobial resistance and its ...
MR Fazeli, E Vaghari, H Jamalifar, Z Ebrahim, N Samadi   +4 more
doaj  

Strategies for in-orbit calibration of drag-free control systems

, 2008
Drag-Free Satellites (DFS) are a class of scientific satellite missions designed for research on fundamental physics as well as geodesy. They consist, basically, of a small inner satellite (test mass) located in a cavity inside a larger satellite, the ...
Leite Filho, Waldemar Castro, Theil, Stephan, Guilherme, Michel Silas   +2 more
core   +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, Jay Prakash GOIT, Takatsugu KAMEDA   +2 more
doaj   +1 more source

A shortened time horizon approach for optimization with differential-algebraic constraints [PDF]

Annals of computer science and information systems, 2021
Paweł Drąg
doaj   +1 more source

“A Novel Against the Novel”: David Markson’s Antinovelistic Tetralogy [PDF]

Polish Journal of English Studies, 2015
The antinovel is a niche genre which positions itself radically and emphatically against what might be called the conventional novel. It chooses to dispense with such novelistic devices as linear plot, cause-and-effect relation of events,
Wojciech Drąg
doaj  

Determination of drag coefficients in automatic ball balancers at low Reynolds numbers

Engineering Applications of Computational Fluid Mechanics, 2021
The precise calculation of drag forces in the technical application of automatic balancing of rotating machinery provides important information about efficiency and stability.
Lars Spannan, Elmar Woschke
doaj   +1 more source