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Now showing items 11-20 of 993
Accurate and Efficient Algorithms for Star Sensor Based Micro-Satellite Attitude and Attitude Rate Estimation
(2018-04-18)
This dissertation addresses novel techniques in determining gyroless micro-satellite attitude and attitude rate. The main objective of this thesis is to explore the possibility of using commercially available low cost ...
Experimental Investigations on Supersonic Ejectors
(2018-04-13)
A supersonic ejector is used to pump a secondary gas using a supersonic primary gas flow by augmentation of momentum and energy in a variable area duct. The internal compressible flow through an ejector has many complex ...
A Computational Study of Structural and Thermo-Mechanical Behavior of Metallic Nanowires
(2018-04-11)
This thesis is an attempt to understand ways to improve thermo-mechanical and structural properties of nano-structured materials. A detailed study on computational design and analysis of metallic nanowires is carried out. ...
Shock Tunnel Investigations on Hypersonic Impinging Shock Wave Boundary Layer Interaction
(2018-04-13)
The interaction of a shock wave and boundary layer often occurs in high speed flows. For sufficiently strong shock strengths the boundary layer separates, generating shock patterns in the contiguous inviscid flow (termed ...
Compressible Mixing of Dissimilar Gases
(2018-03-22)
This thesis is concerned with the study of parallel mixing of two dissimilar gases under compressible conditions in the confined environment. A number of numerical studies are reported in the literature for the compressible ...
Analysis and Detection of Ionospheric Depletions over the Indian Region in the Context of Satellite Navigation
(2018-04-18)
Satellites have revolutionized navigation by making it more universal, accessible and ac- curate. Global Positioning System (GPS) is the most widely used satellite navigation system in the world. However, it is prone to ...
Three Dimensional Computational Fluid Dynamic Simulation and Analysis of a Turbocharger Compressor
(2018-05-01)
This thesis constitutes detailed computational investigation on ow through the passages of a centrifugal compressor used for turbocharging applications. Given the dynamic nature of operation of the turbocharger, it becomes ...
Design and Development of 75 mm Fixed-Wing Nano Air Vehicle
(2018-06-11)
This thesis deals with the design and development of a 75 mm fixed-wing nano-air vehicle (NAV). The NAV is designed to fit inside a cube with each side measuring 75 mm. The range and endurance of the NAV are 300 m and 2-3 ...
Application of Randomized Algorithms in Path Planning and Control of a Micro Air Vehicle
(2018-06-25)
This thesis focuses on the design and development of a fixed wing micro air vehicle (MAV) and on the development of randomized sampling based motion planning and control algorithms for path planning and stabilization of the ...
Effect of Favourable Pressure Gradient on Turbulence in Boundary Layers
(2018-07-16)
This thesis explores the effects of favourable pressure gradient on the structure of turbulent boundary layers (TBL). In this context, the structure of three types of boundary layers namely a zero-pressure-gradient ...