Aerospace Engineering (AE): Recent submissions
Now showing items 1-20 of 488
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Dynamo action due to turbulence in a linear shear flow
Astrophysical systems such as the Sun, disc galaxies, galaxy clusters, and accretion discs possess ordered magnetic fields alongside random components. These magnetic fields survive for timescales much longer than diffusion ... -
GMRES acceleration of kinetic flux vector split (KFVS) Eulercodes
The present work is concerned with the acceleration of Euler codes using the Generalized Minimal Residual (GMRES) algorithm. The codes taken up for acceleration are 2D cellcentred, timemarching, finitevolume explicit Euler ... -
General procedure for evaluation of crack closure integral in problems of fracture mechanics
Fracturebased design procedures ensuring safety in the presence of cracks, which cannot be detected with hundred percent reliability by NonDestructive Testing (NDT) methods, have become essential for aerospace and many ... -
Study of some three dimensional effects in bolted joints
Joints are essential to connect parts of structural components and to interconnect subassemblies of largescale structural systems. Various types of structural joints are used in technological practice; among these, bolted ... -
Numerical simulation of a plane "Canonical" mixing layer using a vortex sheet model
A novel method for computing mixinglayer flow in the limit of infinite Reynolds number using a twodimensional vortexsheet technique is presented here. The method computes the evolution of the sheet by dividing it into ... -
Boundary restaint effects and correction ruler for two-dimensional separated flow past bodies.
It is now recognized that considerable uncertainties and inadequacies exist in methods for effecting blockage or boundaryrestraint corrections in wind and water tunnels. These factors have led to the search for alternative ... -
Energy balance growth
The problem of predicting residual strength of sheet metal construction is of considerable importance in damage-tolerant or fail-safe design of aircraft. The phenomenon of stable crack growth prior to fracture instability ... -
Study of mean velocity profiles in three-dimensional incompressible turbulent boundary layers
This thesis is concerned with the description of mean velocity profiles in three-dimensional incompressible turbulent boundary layers. The principal features of the study are an examination of the Preston tube technique ... -
Special Finite elements for analysis of pain jionts in composite plates
Joints are essential to connect various components of a structural assembly. Among various methods of joining, pin (or fastener) joints are of detachable type and are the most preferred under situations requiring periodic ... -
Investigation of cutting mechanisms and strain fields during orthogonal cutting in CFRPs
Cutting mechanisms in fiber reinforced plastics (FRPs) have been studied in the present work. Full field strains are measured using the digital image correlation (DIC) technique, and force signals are measured using a ... -
Finite element analysis of stress concentrations and singularities
Stress concentrations or singularities occur in a structure whenever there is a sharp change in geometry, or discontinuities in loading or material properties. In the analysis of problems with significant concentrations, ... -
Study of large scale unstable air sea interactions in the tropics using a coupled ocean atmosphere model
Coupling between the ocean and the atmosphere plays an important role in determining the nature of short-term climate fluctuations in the tropics, such as the El Niño–Southern Oscillation (ENSO). Although the tropical ocean ... -
Role of ozone in sun weather relationships
This thesis comprises analytical studies of the relationships between solar/geomagnetic activity and the day-to-day variation of total atmospheric ozone at five selected stations — Resolute, Churchill, Hohenpeissenberg, ... -
Sensitivity studies on the structure of the monsoon desert heat flow.
The sensitivity of the atmospheric response to large-scale summer continental sensible heat sources, such as those prevailing over the great deserts of the Afro-Asian landmass, is studied in this thesis. Understanding this ... -
Effects of solar and geomagnetic activity on stratospheric temperatures
This thesis comprises analytical investigations of temperature variations in the 21–60 km altitude region related to solar and geomagnetic activity. The analyses have been carried out using Meteorological Rocket Network ... -
Studies on effects of solar and geomagnetic activity on mesospheric temperature
This thesis comprises analytical and experimental investigations of the mesosphere, specifically the altitude region 50–90 km. The analytical work consists of correlation analyses of mesospheric temperature data from ... -
On High-Speed Curved Compression Ramp Air Intakes
A scramjet, i.e., a supersonic combustion ramjet, is an air-breathing engine that enables sustained atmospheric flight in the hypersonic regime. It consists broadly of four key components: the air intake, isolator, combustor, ... -
Compressive behavior of continuous fiber polymer composites in the presence of process-induced defects
The current work examines how process-induced defects influence the compressive behavior of composite structures. The defects analyzed include wrinkles at the macroscale and fiber misalignment at the microscale. ... -
Multi-Agent Coordination using Convex Formations and Binary Tree Structures
Multi-agent systems are increasingly deployed in missions involving large-scale tasks with complex objectives that are beyond the capability of a single agent. Such missions demand computationally efficient coordination ...