Results 171 to 180 of about 5,070,033 (225)
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2013
The aerodynamic characteristics of bluff bodies differ substantially from streamlined bodies, and an understanding of bluff body aerodynamics is essential to make progress in understanding wind engineering. Streamlined bodies like aircraft wings have a rounded nose, a thin profile, and a sharp trailing edge.
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The aerodynamic characteristics of bluff bodies differ substantially from streamlined bodies, and an understanding of bluff body aerodynamics is essential to make progress in understanding wind engineering. Streamlined bodies like aircraft wings have a rounded nose, a thin profile, and a sharp trailing edge.
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Fork-shaped bluff body for enhancing the performance of galloping-based wind energy harvester
Energy, 2019Galloping-based piezoelectric energy harvesting systems are being used to supply renewable electricity for the low-power wireless sensor network nodes. In this paper, a fork-shaped bluff body is presented as the basic system component, and demonstrated ...
Fengrui Liu +3 more
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Modeling Flow around Bluff Bodies
Journal of Computing in Civil Engineering, 2005The interaction of wind with elastic structures is complex. It is impossible to describe both wind and structural motion without considering the interaction therein. The purpose of this technical note is to present a method for simulating wind-structure interaction using commercial software.
Makola M. Abdullah +3 more
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International journal of hydrogen energy, 2019
An approach to improve premixed hydrogen/air combustion in micro combustor is numerically studied in this paper. The micro–combustor with slits on both sides of the bluff body shows better combustion efficiency and uniformity of temperature distribution.
Yunfei Yan +6 more
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An approach to improve premixed hydrogen/air combustion in micro combustor is numerically studied in this paper. The micro–combustor with slits on both sides of the bluff body shows better combustion efficiency and uniformity of temperature distribution.
Yunfei Yan +6 more
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, 2020
In this study, we numerically investigated the main factors affecting the flame blowout limit of bluff-body micro-combustors with a blockage ratio (δ) varying from 0.3 to 0.8; the combustion performance of these combustors is investigated as well ...
Minghao Wang, Pengfei Li, Feifei Wang
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In this study, we numerically investigated the main factors affecting the flame blowout limit of bluff-body micro-combustors with a blockage ratio (δ) varying from 0.3 to 0.8; the combustion performance of these combustors is investigated as well ...
Minghao Wang, Pengfei Li, Feifei Wang
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Wideband PZT energy harvesting from the wake of a bluff body in varying flow speeds
International Journal of Mechanical Sciences, 2019Wake-galloping flow energy harvesters vibrate linearly under fluid force which results in a narrow lock-in region. Hence, their efficiency drops significantly in variable flow speeds leading to inevitable discrepancies between the natural frequency of ...
M. Rezaei, R. Talebitooti
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, 2020
The paper discusses the computational fluid dynamics simulation results of a bluff body. A literature case regarding a closed box section of a suspended bridge was selected since it is of practical relevance.
F. Rizzo +3 more
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The paper discusses the computational fluid dynamics simulation results of a bluff body. A literature case regarding a closed box section of a suspended bridge was selected since it is of practical relevance.
F. Rizzo +3 more
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Torsional flutter of bluff bodies
Journal of Wind Engineering and Industrial Aerodynamics, 1997This paper describes the torsional flutter mechanism of 2D rectangular cylinders and 2D H-shaped cylinders based upon unsteady pressure measurements under forced torsional vibration. For some cylinders with certain side ratio (BD, B: chord length, D: cylinder thickness), such as BD = 5 to BD = 12.5, in the high reduced velocity range, that is V/f B> 10
Masaru Matsumoto +4 more
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The Canadian Journal of Chemical Engineering, 1973
AbstractThe attached recirculating wake zone has been experimentally investigated for spheres, spherical caps and circular discs normal to the flow. Tracer photography in a water tunnel was employed for the measurements. Results are presented over the range of Reynolds number from 20 to 400.
T. R. Kalra, P. H. T. Uhlherr
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AbstractThe attached recirculating wake zone has been experimentally investigated for spheres, spherical caps and circular discs normal to the flow. Tracer photography in a water tunnel was employed for the measurements. Results are presented over the range of Reynolds number from 20 to 400.
T. R. Kalra, P. H. T. Uhlherr
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Dynamics of rolling bluff bodies
2018The fluid-structure interaction of bluff bodies rolling through a fluid along a flat surface is explored both numerically and experimentally. This thesis identifies relevant studies from the literature, describes the different methods of investigation and presents the outcomes of the research program. A major focus is on the initial transitions of two-
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