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Browsing Rama Govindarajan by Issue Date

Browsing Rama Govindarajan by Issue Date

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  • Global instabilities in diverging channel flows 
    Swaminathan, Gayathri; Sahu, Kirti Chandra; Sameen, A; Govindarajan, Rama (Springer, 2011-06)
    A global stability study of a divergent channel flow reveals features not obtained hitherto by making either the parallel or the weakly non-parallel (WNP) flow assumption. A divergent channel flow is chosen for this study ...
  • Stability of a vortex in radial density stratification: role of wave interactions 
    Dixit, Harish N; Govindarajan, Rama (Cambridge University Press, 2011-07)
    We study the stability of a vortex in an axisymmetric density distribution. It is shown that a light-cored vortex can be unstable in spite of the 'stable stratification' of density. Using a model flow consisting of step ...
  • Vortex shedding patterns, their competition, and chaos in flow past inline oscillating rectangular cylinders 
    T, Srikanth; Dixit, Harish N; Tatavarti, Rao; Govindarajan, Rama (American Institute of Physics, 2011-07)
    The flow past inline oscillating rectangular cylinders is studied numerically at a Reynolds number representative of two-dimensional flow. A symmetric mode, known as S-II, consisting of a pair of oppositely signed vortices ...
  • Minimum energy shapes of one-side-pinned static drops on inclined surfaces 
    Thampi, Sumesh P; Govindarajan, Rama (American Physical Society, 2011-10-10)
    The shape that a liquid drop will assume when resting statically on a solid surface inclined to the horizontal is studied here in two dimensions. Earlier experimental and numerical studies yield multiple solutions primarily ...
  • Linear stability of double-diffusive two-fluid channel flow 
    Sahu, Kirti Chandra; Govindarajan, Rama (Cambridge University Press, 2011-11-10)
    Double-diffusive density stratified systems are well studied and have been shown to display a rich variety of instability behaviour. However double-diffusive systems where the inhomogeneities in solute concentration are ...

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