Experiments in Fluids
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Hypersonic flow over a six-finned configuration
Experiments in Fluids - Tập 6 - Trang 237-242 - 1988
Experimental data of the flow field over a six-finned configuration are compared with computations from an inviscid Euler code and a parabolized Navier-Stokes (PNS) code to assess their accuracy. Surface oil flow patterns, surface pressures, and flow field pilot surveys are presented. The PNS computations are in good agreement with the measurements in the inviscid regions. Differences are noted in...... hiện toàn bộ
Effect of radiation on natural convection in an L-shaped corner
Experiments in Fluids - - 2000
An experimental investigation of the interaction of surface radiation and natural convection in an L shaped corner is presented. Parametric studies to explore the influence of surface emissivity and aspect ratio on the total heat transfer rate from the isothermal vertical wall of the L corner, have been carried out. For an L corner with highly polished walls, the present experimental results are ...... hiện toàn bộ
Collision of a liquid drop on the edge region of a plate heated above the Leidenfrost temperature
Experiments in Fluids - - 2009
The role of shape and relative submergence on the structure of wakes of low-aspect-ratio wall-mounted bodies
Experiments in Fluids - Tập 53 - Trang 1943-1962 - 2012
The effects of shape and relative submergence (the ratio of flow depth to obstacle height, d/H) are investigated on the wakes around four different low-aspect-ratio wall-mounted obstacles at Re
H
= 17,800: semi-ellipsoids with the major axes of the base ellipses aligned in the streamwise and transverse directions, and two cylinders with aspect ratios matching the...... hiện toàn bộ
Measurement of velocity-temperature correlations in a turbulent diffusion flame
Experiments in Fluids - Tập 37 - Trang 364-374 - 2004
The paper reports on the nonintrusive, simultaneous measurement of velocity and temperature fluctuations in a turbulent jet diffusion flame. Velocity fluctuations were measured using laser Doppler anemometry (LDA), whereas coherent anti-Stokes Raman spectroscopy (CARS) was used for temperature measurements. The simultaneous measurements were affected by both density bias and velocity bias because ...... hiện toàn bộ
Effect of chord-to-diameter ratio on vertical-axis wind turbine wake development
Experiments in Fluids - Tập 58 - Trang 1-11 - 2017
The wake structure of a vertical-axis wind turbine (VAWT) is strongly dependent on the tip-speed ratio,
$$\lambda$$
, or the tangential speed of the turbine blade relative to the incoming wind speed. The geometry of a turbine can influence
...... hiện toàn bộ
The stability and development of tip and root vortices behind a model wind turbine
Experiments in Fluids - - 2013
Solid transport measurements through image processing
Experiments in Fluids - Tập 41 - Trang 721-734 - 2006
The paper describes a novel technique which enables evaluation of sediment fluxes on the upper layer of a granular bed by means of separate measurements of concentration and velocity of the moving particles. Specific elaboration techniques based on digital image processing were applied to films of the solid fluxes, allowing for automatic measurement. Sediment concentration was measured via a techn...... hiện toàn bộ
Statistical investigation of errors in particle image velocimetry
Experiments in Fluids - Tập 10 - Trang 138-146 - 1990
The accuracy of the particle image velocimetry technique was investigated using synthetic images having known characteristics. Algorithms were developed to extract two-dimensional velocity information by tracking particles between successive frames of a movie automatically without operator assistance. This allowed to parametrically investigate the influence of the various parameters (image contras...... hiện toàn bộ
A variable angle method of calibration for X-probes applied to wall-bounded turbulent shear flow
Experiments in Fluids - Tập 2 - Trang 121-130 - 1984
A variable angle calibration technique for hot wire and hot film X-probes incorporating a new method of interpolation is described here along with measurements in a fully developed turbulent channel flow. Results based on the new method of calibration include the mean velocity profile, Reynolds stress, and probability density distributions for fluctuating velocity components u and υ and for the fl...... hiện toàn bộ
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