Aerospace Engineering (AE)
Recent Submissions
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Effect of particles on nonequilibrium relaxation phenomena in high temperature gas-nozzle flows
This thesis presents an exhaustive study of the effects of solid particles on the relaxation phenomena of various nonequilibrium processes, such as vibrational, dissociation and ionization, of the gas phase at high temperature ... -
Similar solutions in nonequilibrium nozzle flows
The phenomena of thermal and/or chemical nonequilibrium in flowing gases at high temperatures is of fundamental importance in rocket nozzles as well as hypersonic flight simulation facilities. The present state-of-the-art ... -
Bursting phenomenon in turbulent flows
The importance of the phenomenon of bursts in turbulent shear layers has been recognised by fluid dynamicists during the past few years. Kline et al. (1967), Corino & Brodkey (1969), and more recently Grass (1971) noticed ... -
Lifted laminar diffusion flames-experiments and analysis.
Experiments on axisymmetric and two-dimensional lifted laminar diffusion flames have been conducted to obtain the height of lift as a function of flow parameters. The results are correlated on the basis of simple dimensional ... -
Role of subsurface flows in the ignition of liquid fuel pools-a theoretical study
The work is a theoretical study on the ignition of a pool of liquid fuel at subflash temperatures under the action of localized ignition sources. While a few experimental results are available in the literature, no theoretical ... -
Parametric analysis of fully developed turbulent Wall jets
From an examination of all available data on wall jets, it is concluded that at distances sufficiently far downstream from the slot, a fully developed state of the flow can be identified, where the details of the initial ... -
Robust and Accurate Kinetic Schemes based on Flexible Velocities for Compressible Flows
Kinetic theory based schemes offer a unique approach to numerically solving the hyperbolic nonlinear Euler equations. These methods start with the Boltzmann equation as the governing equation at the kinetic level and then ... -
Studies on laminar boundary layer diffusion flames in a confined flow.
When a gaseous fuel is uniformly injected through a porous flat plate into a laminar boundary layer of an oxidant stream, a two-dimensional diffusion flame can be established which exhibits some special features. Despite ... -
Low Reynolds Number Vortex Shedding In Three-dimensional Flows
Understanding of the flow behind the bluff body poses a great challenge and remains almost entirely in the empirical and descriptive realm of knowledge. Flow in the wake of bluff bodies is characterized by the phenomenon ... -
Dynamic behavior of electro-rheological fluid sandwich beams
Electrorheological (ER) fluids are fluids with controllable rheological properties. The study of change in rheology of suspensions due to application of electric field is of interest both from academic and industrial points ... -
Development and critical assessment of a new flic method for base flows
The motivation for the present work stems from two complex base flow problems of relevance to satellite launch vehicles, namely the flow about the base of a rocket body containing an exhaust jet and the aerodynamics of ... -
Reverse transition in a two dimensional boundary layer flow
Experiments on reverse transition were conducted in two-dimensional accelerated incompressible turbulent boundary layers. Mean velocity profiles, longitudinal velocity fluctuations u′u'u′ (i.e., u′2‾\overline{u'^2}u′2), ... -
Inverse transition from turbulent to laminar flow in a two-dimensional channel
An experimental investigation on inverse transition from turbulent to laminar flow in a two-dimensional channel was carried out. The experiments were conducted in the inverse transition region at Reynolds numbers of 525, ... -
Studies on transition from laminar to turbulent flow in a pipe
This thesis describes some investigations on the transition from laminar to turbulent flow in a straight pipe of circu lar cross-section. It is found that Emmons* Theory of transition by the formation and growth of ... -
UAV Group Autonomy In Network Centric Environment
It is a well-recognized fact that unmanned aerial vehicles are considered an essential element in today’s network-centric integrated battlefield environment. Compared to solo UAV missions, deploying multiple unmanned aerial ... -
Learning Action Priors for Deep Visual Predictions
This thesis addresses the critical challenge of visual prediction in mobile robotics, particularly focusing on scenarios where cameras mounted on autonomous robots must navigate dynamic environments with human presence. ... -
Morse Potential Based Aggregation in Multiagent Systems with Applications to Circumnavigation and Exploration
Swarms of autonomous vehicles, which are modeled as Multi-agent systems (MASs), have found increasing applications in search and rescue, reconnaissance missions, collaborative transportation, among many other applications ... -
Decongestion Strategies for Dense Urban Airspace
With the rapid growth in the number of uncrewed aircraft systems (UAS) being deployed for on-demand delivery applications, severe congestion is anticipated in the low-altitude class-G urban airspace. Thus, there is a need ... -
Development of Generalizable Spiking Neural Network-Based Learning Frameworks For Solving Perimeter Defense Problem
Spiking Neural Networks (SNNs) are third-generation neural networks that can process information in a more biologically realistic way compared to other neural networks such as sigmoidal networks. They process the information ...
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