R
Raghuraman N. Govardhan
Researcher at Indian Institute of Science
Publications - 60
Citations - 5401
Raghuraman N. Govardhan is an academic researcher from Indian Institute of Science. The author has contributed to research in topics: Vortex & Vortex shedding. The author has an hindex of 23, co-authored 55 publications receiving 4516 citations. Previous affiliations of Raghuraman N. Govardhan include Cornell University & Indian Institute of Technology Madras.
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Vortex-induced vibrations
TL;DR: In this paper, a review summarizes fundamental results and discoveries concerning vortex-induced vibration (VIV) that have been made over the last two decades, many of which are related to the push to explore very low mass and damping, and to new computational and experimental techniques that were hitherto not available.
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Modes of vortex formation and frequency response of a freely vibrating cylinder
TL;DR: In this article, the transverse vortex-induced vibrations of an elastically mounted rigid cylinder in a fluid flow were studied for the first time in free vibrations, and the existence of more than one mode transition for low (m*ζ) and high (m *δ) combined mass-damping parameters was analyzed.
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A brief review of recent results in vortex-induced vibrations
TL;DR: In this paper, the authors summarize fundamental results and discoveries concerning vortex-induced vibration, that have been made over the last two decades, many of which are related to the push to very low mass and damping, and to new computational and experimental techniques that were hitherto not available.
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Defining the ‘modified Griffin plot’ in vortex-induced vibration: revealing the effect of Reynolds number using controlled damping
TL;DR: In this paper, the authors study the transverse vortex-induced vibrations of an elastically mounted rigid cylinder in a fluid flow and employ a technique to accurately control the structural damping, enabling the system to take on both negative and positive damping.
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Underwater Sustainability of the ``Cassie'' State of Wetting
TL;DR: An optical technique based on total internal reflection of light at the water-air interface is utilized to quantify the spatial distribution of trapped air on such a surface and its variation with immersion time, suggesting that the sustainability of the "Cassie" state is finite for all the microstructures studied.