Williamson Roshko 1988, from publication .

Williamson Roshko 1988, Two-dimensional direct numerical simulations are performed for flows at the chord Reynolds number of 10,000, and the vortex pattern in the controlled and noncontrolled wakes as well as the effect of an actuation frequency on the control ability are rigorously investigated. Jul 1, 1988 · In the present experiments, by forcing a cylinder to oscillate up to large amplitudes in a free stream, we can investigate under more controlled conditions how a body influences its own wake to cause synchronization. H. Apr 20, 2026 · When a body oscillates laterally (cross-flow) in a free stream, it can synchronize the vortex formation frequency with the body motion frequency. (b) Boundaries of wake modes identified by Morse and Williamson [27]. Supplemental Notes: J. Oct 1, 1988 · The existence of a discontinuity in the Strouhal–Reynolds number relationship for the laminar vortex shedding of a cylinder is found to be caused by a change in Download scientific diagram | (a) Boundaries of wake modes identified by Williamson and Roshko [18]. 0) and wavelengths (λ / D up to 15. Flow structure form an oscillating cylinder. , 27 ref. and Roshko, A. , 19 fig. Fluids & Structures, 2 (1988), p. Authors: Williamson, C H Roshko, A Publication Date: 1988 Language English Subject/Index Terms TRT Terms: Vortex shedding Old TRIS Terms: Oscillating bodies Subject Areas: Marine Transportation; Filing Info Accession Number: 00694104 Record Type: Publication Source Agency: British Maritime Technology Files: TRIS Created Date: Aug 14 1995 12:00AM Nov 1, 1988 · The existence of two stages in the transition to three‐dimensionality of a cylinder wake C. Part 1: Mechanisms of phase shift and recovery in the rear wake. 57 x 1. 07 x 1. 07-m X-Y towing tank. Many of the questions regarding wake vortex dynamics from the earlier review have now been answered in the literature, and perhaps an essential key to our new understandings (and indeed to new questions) has been the recent We present a brief account of Anatol Roshko's research and educational contributions to fluid mechanics, focusing on the spirit of his transformative ideas and legacy. ] Authors: Williamson, C H Roshko, A Publication Date: 1988 Language English Subject/Index Terms TRT Terms: Vortex shedding Old TRIS Terms: Oscillating bodies Subject Areas: Marine Transportation; Filing Info Accession Number: 00694104 Record Type Since the review of periodic flow phenomena by Berger & Wille (1972) in this journal, over twenty years ago, there has been a surge of activity regarding bluff body wakes. . from publication Nov 1, 1988 · The transition to three‐dimensionality in the near wake of a circular cylinder involves two successive transitions, each of which corresponds with a discontinui Since the review of periodic flow phenomena by Berger & Wille (1972) in this journal, over twenty years ago, there has been a surge of activity regarding bluff body wakes. The results are presented in extensive graphs, diagrams, and photographs and discussed in detail, with a focus on the evolution of several synchronization regions, in which the frequency of vortex formation is locked to the oscillation frequency. 1990 Measurements of base pressure in the wake of a cylinder at low Reynolds numbers. Williamson May 1, 2009 · Williamson and Roshko (1988) conducted an extensive study of the different vortex shedding modes that exist for an oscillating cylinder, which they defined, for example as a ‘2S’ mode indicating two single vortices formed per cycle, a ‘2P’ mode meaning two pair of vortices formed per cycle, and an asymmetric ‘ P + S $\mathrm{P The effects of cross-flow oscillation of a cylinder on the formation of vortices in its wake are investigated experimentally by means of flow-visualization studies in a 4. 0). 14, 38–46. 355 (July) [27 pp. Zeitschrift fur Flugwissenschaften und Weltraurnforschung. The results are presented in extensive graphs, diagrams, and photographs and discussed in detail, with a focus on the evolution of several synchronization regions, in which the frequency of Williamson, C. Jul 1, 1988 · We interpret this particular case as a condition of “resonant synchronization”, and it corresponds with the peak in the body forces observed in Bishop and Hassan's work. Many of the questions regarding wake vortex dynamics from the earlier review have now been answered in the literature, and perhaps an essential key to our new understandings (and indeed to new questions) has been the recent Nov 1, 1988 · The transition to three‐dimensionality in the near wake of a circular cylinder involves two successive transitions, each of which corresponds with a discontinui May 1, 2009 · Williamson and Roshko (1988) conducted an extensive study of the different vortex shedding modes that exist for an oscillating cylinder, which they defined, for example as a ‘2S’ mode indicating two single vortices formed per cycle, a ‘2P’ mode meaning two pair of vortices formed per cycle, and an asymmetric ‘ P + S $\mathrm{P Jun 1, 2008 · Williamson and Roshko (1988), studied the vortex wake patterns for a cylinder, forced to translate in a sinusoidal trajectory, over a wide variation of amplitudes (A / D up to 5. K. Jun 1, 2008 · Williamson and Roshko (1988), studied the vortex wake patterns for a cylinder, forced to translate in a sinusoidal trajectory, over a wide variation of amplitudes (A / D up to 5. axbqiz, 77u5, q5vky, cra, jasa, ssi, dewj, k5r, dbwwm, pyewrq,