low Reynolds numbers
Behavior of spherical particles at low Reynolds numbers in a fluctuating translational flow
... a steady but turbulent freestream show that the turbulence has a pronounced effect on the near wake, and it is suggested that at low Reynolds numbers this might account for the change in[r] ...
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Effects of turbulence intensity and integral length scale on an asymmetric airfoil at low Reynolds numbers
... at low Reynolds numbers based on chord (typically less than 200,000) is critical in many engineering applications including micro air vehicles and small scale wind ...at low Reynolds ...
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A Comparison between steady jets and synthetic jets at low Reynolds numbers
... significant difference was observed between the steady and synthetic jet Nusselt numbers at low Reynolds numbers and low H/D. In comparison to steady jets, the stronger entrainment of ...
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Experimental Study of Owl Like Airfoil Aerodynamics at Low Reynolds Numbers
... for low-Reynolds-number aircrafts such as micro air vehicles. Reynolds num- ber dependency on aerodynamics is also evaluated at low Reynolds ...at low angles of ...The ...
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Channel Flow Behaviour During Mixed Convection at Low Reynolds Numbers
... The flow structure under mixed convection heat transfer inside a horizontal square channel at low Reynolds numbers and over a range of Grashof numbers has been studied experimentally. Particle ...
223
Solution of two dimensional time fractional Burgers equation with high and low Reynolds numbers
... Nowadays, fractional calculus modeling methods are considered as powerful techniques to handle physical and engineering problems with memory feature and nonlocal property, due to the natural structure of fractional ...
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UNSTEADY AERODYNAMIC PERFORMANCE OF MODEL WINGS AT LOW REYNOLDS NUMBERS
... In earlier studies of Drosophila wing performance, Vogel (1967) noted that real wings exhibited a broad stall plateau that was not present in model wings, and he suggested that the behavior might be attributed to the ...
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Aquatic wing flapping at low Reynolds numbers: swimming kinematics of the Antarctic pteropod, Clione antarctica
... We studied swimming kinematics of the Antarctic pteropod, Clione antarctica, to investigate how propulsive forces are generated by flexible oscillating appendages operating at low Reynolds numbers ...
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Fluctuating and time averaged heat transfer characteristics of a steady jet at low Reynolds numbers
... at low Reynolds ...for Reynolds numbers ranging from 1000 to 4000, and for non-dimensional surface to jet exit spacings (H/D) from 1 to ...
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Unsteady flow over flexible wings at different low Reynolds numbers
... concluded that the spanwise wing deformation and the increased effective angle of attack of the deformed wing increased thrust generation. On the other hand, it was noticed that when the flexibility was too high, the ...
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THE EFFECTS OF WING ROTATION ON UNSTEADY AERODYNAMIC PERFORMANCE AT LOW REYNOLDS NUMBERS
... Unlike the lift-generating surfaces of planes and helicopters, the wings of animals must frequently change direction. The wing motion of many animals consists of alternating upstrokes and downstrokes, each with an ...
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Dynamics of drop deformation and breakup in time-dependent flows at low Reynolds numbers
... Figure 20 Numerical simulation of the effect of changes to subcritical capillary number for a given modestly deformed initial shape. D,,[r] ...
369
Force production and flow structure of the leading edge vortex on flapping wings at high and low Reynolds numbers
... One of the challenges in developing a comprehensive theory of biological flight is to understand how aerodynamic mechanisms change with body size. Recent work has focused on flows generated by flapping wings in a variety ...
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Localized turbulence structures in transitional rectangular-duct flow
... At low Reynolds numbers puffs can be in an equilibrium state where they have roughly 20 pipe diameter length (Mullin 2011) and propagate at a speed of approximately 0 ...onset Reynolds number ...
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Flow around an oscillating circular disk at low to moderate Reynolds numbers
... contour plots on several z planes again demonstrate that the flow is planar symmetric. The present planar symmetric flow recalls the planar symmetric (or reflectionally sym- metric) modes of the uniform flow normal to a ...
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Experimental Analysis of Wall Flow Pattern and Fluid Shear Stress Effects on Creeping Flow Field in Convergent-Divergent Microchannels
... different Reynolds numbers showed that in the low Reynolds numbers, because of increase of the precipitation, the destructive effect of channel obstruction can be eliminated by means of ...
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Compressible flows at small Reynolds numbers
... -v- TABLE OF CONTENTS PAGE Chapter Introduction 1 II The Formulation of Lagerstrom-Chester Theory 4 III The Solution of the Lagerstrom-Chester Paradox l0 IV A New Slip Condition 25 Forma[r] ...
122
On the origin of time-dependent behaviour in a barotropically unstable shear layer
... The Reynolds number at which the respective flows are found vary are, Re >≈ 200 in the exper- iments and Re = 788 in the numerical model which showed a steady 2 + 1 at Re = ...
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Experimental and computational investigation of flow about low aspect ratio ellipsoids at transcritical Reynolds numbers
... the Reynolds-stress tensor in the three-dimensional boundary layer of an inclined body of revolution,” Ninth Symposium on Turbulent Shear Flows, Department of Mechanical Engineering, ...
129
Comparison of the Aerodynamic Characteristics of the NACA0012 Airfoil at Low-to-Moderate Reynolds Numbers for any Aspect Ratio
... though low frequencies have been measured in this random movement for the same NACA0012 airfoil studied here by means of flow visualizations and Proper Orthogonal ...based Reynolds numbers below 7·10 ...
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