Browsing Mechanical Engineering (ME) by Title
Now showing items 18-37 of 450
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Analytical Investigations on Linear And Nonlinear Wave Propagation in Structural-acoustic Waveguides
(2017-09-26)This thesis has two parts: In the first part, we study the dispersion characteristics of structural-acoustic waveguides by obtaining closed-form solutions for the coupled wave numbers. Two representative systems are ... -
Analytical, Numerical, And Experimental Studies Of Fluid Damping In MEMS Devices
(2009-09-11)Fluid damping arising from squeeze film flow of air or some inert gas trapped between an oscillating micro mechanical structure, such as a beam or a plate, and a fixed substrate often dominates the other energy dissipation ... -
Asymptotic Analysis Of The Dispersion Characteristics Of Structural Acoustic Waveguides
(2010-04-12)In this work, we study the coupled dispersion characteristics of three distinct structural-acoustic waveguides, namely: -(1) a two-dimensional waveguide, (2) a fluid-filled circular cylindrical shell and (3)a fluid-filledelliptic ... -
Axially Homogeneous Turbulent Convection at High Rayleigh Numbers : Scaling Laws for Flux and Spectra
(2018-05-30)Natural turbulent convection studies encompass a wide range of flows occurring in nature, for example, atmospheric and oceanic flows, con-vection in the Earth’s mantle, convection in the stars and also in many engineering ... -
Axisymmetric Contact Problems In Composite Elastic Media
(2012-03-01) -
Blade Flutter in a Linear Cascade: Unsteady Loads and Flow Features in Subsonic and Transonic Flows
Vibration related issues like flutter can significantly limit the performance of aircraft engines and cause unwarranted cost and time overruns. The increased demand for more powerful yet compact engines has resulted in the ... -
Blast Loading on Plain and Perforated Tubes with High Explosives
According to the assessments of the United Nations, there are more than 100 million mines lying buried in various conflict zones of many countries in the world. As per their assessment, many thousand casualties happen ... -
Boundary layer transition with and without lateral divergence
Information on the transition processes in turbomachine boundary layers is important in computing schemes for predicting blockage, flow losses, separation, etc. Actual transition on turbomachine blades does not conform to ... -
Breakout Noise From The Coupled Acoustic-Structural HVAC Systems
(2010-07-19)Noise control in the heating, ventilation and air-conditioning (HVAC) systems is one of the critical design parameters in measuring the occupant comfort. The noise generated by air-handling units propagates through the ... -
Buoyancy Driven Turbulence In A Vertical Pipe
(2011-06-24) -
Buoyancy effects and pulsation effects on heat transfer in air flowing in a uniformly heated horizontal pipe Ph.D. Thesis
H a rein is rapor tB d an i n w u s t i g a t i o n c a rr ic d out on haat transfs r to air f l ou inc th r o u g n u uni f o r m l y heated horizontal pipu. It deals uith tht. bff<jct of buo ya nc y and effbct of p u l ... -
A Capillary-fed Evaporative Microthruster for Micro/Nano Satellites
Small satellites offer a unique platform for short-term and low-cost communications and surveillance missions. They are essential for, scientific research, and technology demonstration due to their ability to provide rapid ... -
Casing boundary layer decelopment in axial impellers with TIP clearence
Casing wall boundary layers are heavily skewed under the action of secondary and tip clearance flows, relative wall motion and the transverse forces associated with the blade rows. The growth of the casing boundary layers ... -
CFD Studies Of Pulse Tube Refrigerators
(2012-12-06)The performance evaluation and parametric studies of an Inertance Tube Pulse Tube Refrigerator (IPTR) are performed for different length-to-diameter ratios, with the Computational Fluid Dynamics (CFD) package FLUENT. The ... -
Characterization Of Al-Si Alloy Engine Bores For Tribological Studies
(2013-06-06)Aluminum - Silicon alloys are recognized as appropriate materials for high performance cast components used in transportation powertrain applications. A combination of excellent wear resistance, good thermal conductivity ...