1-20 of 29
Keywords: vibrations
Close
Sort by
Journal Articles
Publisher: ASME
Article Type: Research-Article
J. Fluids Eng. July 2019, 141(7): 071105.
Paper No: FE-18-1475
Published Online: January 7, 2019
... on a hydrophobic, vertical surface were conducted in xflow using the lattice Boltzmann method (LBM). Results were compared to two experimental cases; in the first case, experimental and simulated droplets experienced 30 Hz vibrations (i.e., ±0.1 mm x-direction amplitude, ±0.2 mm y-direction amplitude...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. December 2011, 133(12): 121102.
Published Online: December 19, 2011
...Mehmet N. Tomac; Kevin Yugulis; James W. Gregory; James Loftus; Tony Ferrito This work develops an understanding of the flow mechanisms that induce vibrations on automotive side view mirrors. The unsteady nature of the flow over side view mirrors causes unsteady aerodynamic load distributions...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. August 2011, 133(8): 081102.
Published Online: August 16, 2011
...Andreas Lucius; Gunther Brenner Flow instabilities like rotating stall can lead to severe vibrations in turbomachines if the eigenfrequency of the rotor is equal to the stall frequency. The goal of the present work is to shed some light on the origin of the rotating stall phenomenon...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. May 2011, 133(5): 051202.
Published Online: June 2, 2011
...Rong Fung Huang; Jeng Cha Cheng; Jia-Kun Chen; Ching Min Hsu The flow, vortex shedding, and surface pressure of a square cylinder at incidence were manipulated by means of a self-sustained vibrating rod placed around the leading edge of the upwind-facing lateral face of the square cylinder...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. December 2010, 132(12): 121201.
Published Online: December 22, 2010
...Antoine Fornari; Matthew Sullivan; Hua Chen; Christopher Harrison; Kai Hsu; Frederic Marty; Bruno Mercier We have studied the phenomenon of squeeze film damping in a liquid with a microfabricated vibrating plate oscillating in its fundamental mode with out-of-plane motion. It is paramount...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. July 2010, 132(7): 071102.
Published Online: July 8, 2010
... is discussed based on a vibration model in which the hydrodynamic forces and moments are assumed to be smaller than structural forces with the structural coupling being represented by a structural influence factor. Then, the fundamental characteristics of rotordynamic moment on the backshroud of a Francis...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. June 2010, 132(6): 061105.
Published Online: June 23, 2010
...Yoshiki Yoshida; Masato Eguchi; Taiichi Motomura; Masaharu Uchiumi; Hirotaka Kure; Yoshiyulki Maruta Asymmetric cavitation, in which cavity lengths are unequal on each blade, is known as a source of cavitation induced shaft vibration in turbomachinery. To investigate the relationship of the uneven...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. October 2009, 131(10): 101203.
Published Online: September 30, 2009
... velocities between 2 and 12. The results are reduced to a uniform grid, tabulated, and applied to prediction of resonant, nonresonant, and time history vortex-induced vibration. The results are reduced to a uniform grid, tabulated, and applied to prediction of resonant, nonresonant and time history vortex...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. May 2009, 131(5): 051102.
Published Online: April 10, 2009
.... In contrast to practical applications, in the present test configuration, the mode of vibration of the blades remains unchanged by the introduction of the part-span shroud. This allows the influence of the aerodynamic blockage introduced by the part-span shroud to be assessed in isolation from the change...
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. March 2009, 131(3): 031203.
Published Online: February 9, 2009
...T. Pärssinen; H. Eloranta; P. Saarenrinne An experimental study on the effects of various geometrical parameters to the characteristics of vortex-induced vibration (VIV) of a splitter plate is presented. The dynamic response of the fluid-structure system was measured using particle image...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Research Papers
J. Fluids Eng. March 2008, 130(3): 031104.
Published Online: March 3, 2008
... system. The measured pressure data contain background noise and high-frequency sound signals due to the blade vibrations. The background noise is separately measured; its effect on the signal is determined from a spectral subtraction algorithm. A time-accurate finite volume numerical solution...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Fluids Eng. November 2007, 129(11): 1428–1435.
Published Online: May 26, 2007
...C. G. Rodriguez; E. Egusquiza; I. F. Santos The highest vibration levels in large pump turbines are, in general, originated in the rotor stator interaction (RSI). This vibration has specific characteristics that can be clearly observed in the frequency domain: harmonics of the moving blade passing...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Fluids Eng. October 2007, 129(10): 1306–1313.
Published Online: April 25, 2007
...S. Kanagai; J. Suzuki; S. Obi; S. Masuda This paper focuses on the interaction between the flow unsteadiness and disk vibration of shrouded corotating disk system to identify the nature of the flow-induced vibration of disks in the wide range of rotation speed below critical. Special attention...
Journal Articles
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Fluids Eng. August 2007, 129(8): 966–973.
Published Online: March 16, 2007
... of cavitation and fluid-structure interaction on the mechanism of the vortex generation. The vortex shedding frequency, derived from the flow-induced vibration measurement, is found to follow the Strouhal law provided that no hydrofoil resonance frequencies are excited, i.e., lock-off. For such a regime...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Fluids Eng. July 2007, 129(7): 886–893.
Published Online: January 15, 2007
... tunnel for various free stream velocities. Special attention has been given to validate the use of acceleration transducers for studying the physical process. In particular, the modulation in amplitude of the cavitation induced vibrations in a high frequency band has allowed us to determine the shedding...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Fluids Eng. February 2007, 129(2): 236–244.
Published Online: August 15, 2006
... in the future to produce detailed information, for a vertically vibrated, granular material. Hence, a more simplified model is presented, in order to generate some useful results with a reasonable computational time. The system, as illustrated schematically in Fig. 1a , represents a virtual type...
Journal Articles
Publisher: ASME
Article Type: Technical Papers
J. Fluids Eng. March 2007, 129(3): 368–375.
Published Online: July 26, 2006
...Shigenori Takada; Norio Tagawa; Atsunobu Mori; Yoshiaki Mizoh; Masaru Nakakita It is important to clarify the characteristics of flow-induced vibrations in hard disk drives in order to achieve an ultrahigh magnetic recording density. In particular, it is necessary to reduce the flow-induced disk...