High fidelity aerodynamic shape optimization using the adjoint method for gradient calculation is presented for an aircraft wing with particular emphasis on designing wings for propeller-driven aircraft with lower induced ...

A layer of fluid with a free-surface which is initially supercritical (local Froude Fr > 1), displays a near discontinuity in film-thickness at a location where the Froude number becomes unity. This is better known as ...

In the last two decades, Lattice Boltzmann Method (LBM) has emerged as an e cient alternative for hydrodynamic simulations. In LBM, a ctitious lattice with suitable isotropy in the velocity space is considered to recover ...

Clouds are one of the major sources of uncertainty in climate prediction (IPCC Fourth Assessment Report: Climate Change 2007). They play a significant role in transporting heat across the whole extent of the troposphere. ...

In the present work, we study the effect of off-source volumetric heating on a starting plume in an attempt to understand the fluid dynamics of clouds. Clouds play a major role in weather and climate. In the tropics cumulus ...

In the present study, we have implemented a three-dimensional direct numerical simulation (DNS) algorithm for the purpose of studying instability and transition in a Poiseuille flow with imposed unstable stratification. ...

Rarefied gas dynamics show marked deviations from Navier-Stokes dynamics, which make them interesting to study. This thesis on rarefied ’granular’ gas dynamics, aims to study a prototypical flow setup of smooth inelastic ...

Abstract not available

A free-shear flow driven by both initial momentum and buoyancy is a buoyant jet. Turbulent buoyant jets spread in a direction normal to their primary-flow direction by incorporating irrotational ambient fluid into the ...