Results 131 to 140 of about 10,289,048 (317)

Filament actuation by an active colloid at low Reynolds number

open access: yesNew Journal of Physics, 2017
Active colloids and externally actuated semi-flexible filaments provide basic building blocks for designing autonomously motile micro-machines. Here, we show that a passive semi-flexible filament can be actuated and transported by attaching an active ...
Abhrajit Laskar, R Adhikari
doaj   +1 more source

Reynolds number and Mach number effect on space shuttle configurations [PDF]

open access: yes
Analytical studies have been conducted concerning the lee-surface flow phenomena over a space shuttle orbiter model based on the experimental data obtained during September, 1971 through August, 1972.
Zakkay, V.
core   +1 more source

Leakage of Metallic Ball Seat Valves with Anisotropic Surfaces

open access: yesChemical Engineering &Technology, Volume 46, Issue 1, Page 102-109, January 2023., 2023
A better understanding of the physics behind metallic sealing can be applied to develop better metallic valves and static seals. Most importantly, the influence of surface roughness on the leak tightness must be investigated. Most technical surfaces of practical interest are highly anisotropic.
Felix Fischer   +2 more
wiley   +1 more source

What is the Reynolds Number of the Solar Wind?

open access: yesThe Astrophysical Journal
The Reynolds number, Re , is an important quantity for describing a turbulent flow. It tells us about the bandwidth over which energy can cascade from large scales to smaller ones, prior to the onset of dissipation.
Daniel Wrench   +4 more
doaj   +1 more source

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