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Investigation of an Axisymmetric Spiked Body in a Hypersonic Shock Tunnel
The forefront research in the regime of hypersonic flow is intended to focus on improving the overall performance of the existing aerospace vehicles. A high-speed vehicle experiences a high level of aerodynamic heating and ...
Electromechanical properties of PbTiO3 based piezoelectric ceramics and energy harvesting application of their flexible polymer composites
Ferroelectric and piezoelectric polycrystalline ceramics exhibiting large electromechanical response are sought after in electronic devices such as actuators, transducers in sonar, sensors, accelerators, aerospace, ...
Experimental and Numerical Studies on Chemically Active Flame Inhibitors
Fire hazards pose an increasingly potent threat to modern societies. Early identification and mitigation of fire hazards are crucial to avoid the loss of human lives and property. Recent research suggests that finely-atomized ...
Evolution of recrystallization texture in face-centered cubic materials: Role of twin boundaries
The phenomenon of recrystallization and corresponding texture evolution in metallic systems has been studied for several decades yet not understood completely. The complexity of the problem arises due to its dependence on ...
An Application of Resonant Column along with Bender Elements Tests for Assessing Dynamic Properties and Liquefaction Potential of Sand
For determining the response of foundation soils subjected to different kinds of vibrations emerging from (i) an occurrence of an earthquake, (ii) movements of trains over railways tracks, (iii) running of vehicles over ...
Investigation of Thin Films for Frequency Selective Surface Based Radar Absorbing Structures
Modern day stealth aircraft uses microwave absorbers for absorption of incident Radar signals transmitted by rival aircraft. Recently, several attempts were made to fabricate radar absorbing structures (RAS) of various ...
Physical insights into unstart dynamics of a hypersonic mixed compression intake
Hypersonic air-breathing cruise vehicles powered by supersonic combustion ramjet engines
are the potential candidate for future space and defense applications. The air intake of the
scramjet engine is a vital component ...
Quasi-Static and Implicit-Dynamic Finite Element Solution of Large Deformation Elastic Adhesive Contacts Using a Volumetric Interaction Scheme
Adhesive forces, mediated by van der Waals’ and other interactions, dominate the contact response in the micron and sub-micron regimes. Understanding adhesion is especially important in biological systems (interaction of ...
Molecular simulation of thermal conductivity in DNA and phonon dispersion in layered materials
Heat conduction plays a key role and is linked to the underneath lattice structure. The heat transfer in soft matter materials like DNA and polymers is seldom understood and is deeply linked to the geometry and functional ...
An Experimental Investigation of Transitional and Turbulent Channel Flow
This thesis is a comprehensive experimental investigation of transitional and turbulent channel
flow in the Reynolds number range of Reτ = 55 − 1559. Towards this objective, a new
channel flow facility was designed and ...