R
Rama Govindarajan
Researcher at Tata Institute of Fundamental Research
Publications - 182
Citations - 2761
Rama Govindarajan is an academic researcher from Tata Institute of Fundamental Research. The author has contributed to research in topics: Reynolds number & Turbulence. The author has an hindex of 22, co-authored 174 publications receiving 2270 citations. Previous affiliations of Rama Govindarajan include Weizmann Institute of Science & Sapienza University of Rome.
Papers
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Journal ArticleDOI
Dynamics of an initially spherical bubble rising in quiescent liquid
TL;DR: It is reported that the dynamics is fully three-dimensional, and provide a broad canvas of behaviour patterns, and a perfect correlation between large shape asymmetry and path instability is established.
Journal ArticleDOI
Instabilities in Viscosity-Stratified Flow
TL;DR: In this article, a review highlights the profound and unexpected ways in which viscosity varying in space and time can affect flow and the most striking manifestations are through alterations of flow stability, as established in model shear flows and industrial applications.
Book ChapterDOI
An Introduction to Hydrodynamic Stability
Anubhab Roy,Rama Govindarajan +1 more
TL;DR: In this paper, the authors describe common physical mechanisms which cause flows to become unstable and introduce recent viewpoints on the subject, and also discuss how surface tension and viscosity can act as both stabilisers and destabilisers.
Journal ArticleDOI
Effect of miscibility on the linear instability of two-fluid channel flow
TL;DR: In this paper, the authors extended the Yih model for interfacial instabilities in two-fluid channel flow and showed that when the critical layer of the dominant disturbance overlaps the viscosity-stratified layer, the instability is broadband and at low Reynolds number.
Journal ArticleDOI
Stability of miscible core–annular flows with viscosity stratification
TL;DR: In this paper, the authors investigated the linear stability of variable viscosity, miscible core-annular flows and showed that the flow is stable at any Reynolds number when the magnitude of the viscosities ratio is less than a critical value.