4 citations · 11 across the 15 of their papers we have counts for
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The role of the `monopole' instability in the evolution of 2D turbulent free shear layers
Saikishan Suryanarayanan, Garry Brown, Roddam Narasimha
The role of instability in the growth of a 2D, temporally evolving, `turbulent' free shear layer is analyzed using vortex-gas simulations that condense all dynamics into the kinema…
Prediction of separation and transition on a low-pressure turbine blade using a RANS grid
Rajesh Ranjan, S. M. Deshpande, Roddam Narasimha
Flow past a high-lift low-pressure turbine (LPT) blade in a cascade could be quite complex as phenomena like separation and transition are often involved. For a highly loadedT106A…
Non-Precipitating Shallow Cumulus Clouds: Theory and Direct Numerical Simulation
S. Ravichandran, Roddam Narasimha
We model cumulus clouds as transient diabatic plumes, and present a single-fluid formulation for the study of the dynamics of developing shallow cumulus clouds. The fluid, air, car…
Turbulent Jet: A DNS Study
Sachin Y. Shinde, Prasanth Prabhakaran, Roddam Narasimha
The entrainment of ambient fluid into a turbulent shear flow has been a topic of wide interest for several decades. To estimate the entrainment of ambient fluid into turbulent jet,…
Laboratory Investigations of the Dynamics of Anomalous Entrainment in Cumulus-cloud flows
Sourabh S. Diwan, Roddam Narasimha, G. S. Bhat +1
Anomalous entrainment in cumulus clouds has been a topic of investigation over many decades in the past. Its importance stems from the fact that entrainment rate is one of the majo…
A DNS Study of entrainment in an axisymmetric turbulent jet as an episodic process
Prasanth Prabhakaran, Sachin Shinde, Roddam Narasimha
This investigation is based on a DNS of a steady self-preserving incompressible axisymmetric turbulent jet at a Reynolds number of 2400. The DNS data enable accurate maps of the ou…