Results 31 to 40 of about 780,077 (343)

Acoustic mixing at low Reynold’s numbers [PDF]

open access: yesApplied Physics Letters, 2006
In microfluidic devices, hydrodynamic flow is usually governed by very low Reynold’s numbers. Under these conditions, only laminar flow is possible. Hence, mixing in microfluidics occurs by diffusion only. Interaction of small fluid volumes and acoustic waves in a solid leads to pronounced streaming effects in the fluid inducing mixing and stirring ...
Sritharan, K.   +4 more
openaire   +1 more source

Hydromechanics of low-Reynolds-number flow. Part 4. Translation of spheroids [PDF]

open access: yes, 1976
The problem of a uniform transverse flow past a prolate spheroid of arbitrary aspect ratio at low Reynolds numbers has been analysed by the method of matched asymptotic expansions. The solution is found to depend on two Reynolds numbers, one based on the
Chwang, Allen T., Wu, Theodore Y.
core   +1 more source

Flow characteristics over NACA4412 airfoil at low Reynolds number

open access: yesEPJ Web of Conferences, 2016
In this study, the flow phenomena over NACA4412 were experimentally observed at various angle of attack and Reynolds number of 25000, 50000 and 75000, respectively.
Genç Mustafa Serdar   +5 more
doaj   +1 more source

Control surface effectiveness of low Reynolds number flight vehicles

open access: yesJournal of Fluid Science and Technology, 2014
Low-speed wind tunnel tests are carried out to investigate the control surface effectiveness at low Reynolds numbers (Re = 20,000-80,000). A thick airfoil, NACA0012, has a nonlinearity of the control surface effectiveness, which are associated with flow ...
Masayuki ANYOJI   +6 more
doaj   +1 more source

Three-dimensional structure of a low-Reynolds-number turbulent boundary layer [PDF]

open access: yes, 2004
A low-Reynolds-number zero-pressure-gradient incompressible turbulent boundary layer was investigated using a volumetric imaging technique. The Reynolds number based on momentum thickness was 700.
Delo, C., Kelso, R., Smits, A.
core   +2 more sources

Design of a control system for a 1.5 m diameter coaxial rigid rotor model

open access: yesHangkong gongcheng jinzhan
As a key equipment for rotor wind tunnel testing, the design specifications and control accuracy of the rotor test bench directly determine the testing accuracy and effectiveness of the rotor wind tunnel testing.
LIU Shi, SHAO Tianshuang, LIU Xiangnan
doaj   +1 more source

Rotor blade design and dynamic characteristics analysis of unmanned helicopter

open access: yesHangkong gongcheng jinzhan
The widespread application of composite materials in blades also makes the force and stiffness characteristics of blades more complex than traditional blades.
GAO Hongbo
doaj   +1 more source

Viscoelasticity-Induced Instability in Plane Couette Flow at Very Low Reynolds Number

open access: yesFluids, 2022
Elasto-inertial turbulence (EIT), a new turbulent state found in polymer solutions with viscoelastic properties, is associated with drag-reduced turbulence.
Tomohiro Nimura, Takahiro Tsukahara
doaj   +1 more source

Effective swimming strategies in low Reynolds number flows

open access: yes, 2011
The optimal strategy for a microscopic swimmer to migrate across a linear shear flow is discussed. The two cases, in which the swimmer is located at large distance, and in the proximity of a solid wall, are taken into account.
A. Najafi   +33 more
core   +2 more sources

Numerical Validation of a Multi-Dimensional Similarity Law for Scaled STOVL Aircraft Models

open access: yesAerospace
The complex jet-ground interactions of Short Take-off and Vertical Landing (STOVL) aircraft are critical to flight safety and performance, yet studying them with traditional full-scale wind tunnel tests is prohibitively expensive and time-consuming ...
Shengguan Xu   +7 more
doaj   +1 more source

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