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Now showing items 81-90 of 315
Large Eddy Simulation of Multiphase Flows
(2018-06-05)
Multiphase flows are a common phenomenon. Rains, sediment transport in rivers, snow and dust storms, mud slides and avalanches are examples of multiphase flows occurring in nature. Blood flow is an example of multiphase flow ...
Edge Effect of Semi-Infinite Rectangular Posts on Impacting Drops
(2018-05-30)
The inhibiting effect of a sharp edge on liquid spreading is well observed during drop interaction with textured surfaces. On groove-textured solid surfaces comprising unidirectional parallel grooves, the edge effect of ...
A Design Procedure for Flapping Wings Comprising Piezoelectric Actuators, Driver Circuit, and a Compliant Mechanism
(2018-06-05)
Flapping-wing micro air vehicle (MAV) is an emerging micro-robotic technology, which has several challenges toward its practical implementation. Inspired by insect flight, researchers have adopted bio-mimicking approach ...
Time-Optimal Guidance for Impact Angle Constrained Interception of Moving Targets
(2018-05-30)
Various unmanned missions deploy vehicles such as missiles, torpedoes, ground robots, and unmanned aerial vehicles. Guidance strategies for these vehicles aim to intercept a target point and satisfy additional objectives ...
A Numerical Study of Changes to Flow Organization and their Prognostic Measures
(2018-05-23)
Flow induced self-oscillations cause acoustic pressure oscillations of large amplitude in pipe flows. If Reynolds number is treated as a parameter, these floinduced oscillations occur only at discrete and critical values ...
Studies on Vortex Breakdown in a Closed Cylinder with a Rotating Endwall
(2018-01-09)
Swirling flows abound in nature and numerous engineering applications. Under conditions which are not completely understood, the swirling cores could undergo a sudden enlargement of their vortex core, leading to a ’vortex ...
Structure of the Tropical Easterly Jet in NCAR CAM-3.1 GCM
(2018-04-24)
This thesis examines the structure of the Tropical Easterly Jet (TEJ) in a General Circulation Model (GCM). The TEJ is observed only during the Indian summer monsoon period and is strongest during July and August. The jet ...
Dynamics of Droplets Under Support, Acoustic And/Or Ambient Flow Excitation
(2018-04-24)
The first step on the way to understanding the complicated dynamics of spray is to study the behavior of isolated droplets. In many industrial and natural processes such as turbulent combustion, agricultural sprays, spray ...
Mechanics and Mechanisams in Fretting Damage for Stainless Steel and Chromium Carbide Coatings
(2018-04-11)
Fretting is a serious concern in many industrial components, specifically, in nuclear industry for the safe and reliable operation of the component/system. Till date, a lot of efforts has already been made to understand ...
Pragmatic Design of Compliant Mechanisms using Selection Maps
(2018-04-02)
A pragmatic method for designing compliant mechanisms is developed in this thesis, by selecting among existing mechanisms one that may be modified as required. This method complements existing techniques by answering ...