Browsing by Author "Morrison, Gerald L."
Now showing items 21-40 of 49
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Gamal Eldin, Ahmed Mohamed (2009-05-15)This dissertation discusses research on the leakage and rotordynamic characteristics of pocket damper seals (PDS) and see-through labyrinth seals, presents and evaluates models for labyrinth seal and PDS leakage and PDS ...
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Low differential pressure and multiphase flow measurements by means of differential pressure devices Justo, Hernandez Ruiz, (Texas A&M University, 2004-11-15)The response of slotted plate, Venturi meter and standard orifice to the presence of two phase, three phase and low differential flows was investigated. Two mixtures (air-water and air-oil) were used in the two-phase ...
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Shiau, Chao-Cheng (2017-11-17)Researchers in gas turbine field take great interest in the cooling performance on the first-stage vane in a more authentic configuration because of the complicated flow characteristics and intensive heat load that comes ...
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Hall, Kenneth R.; Morrison, Gerald L.; Holste, James C. (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2000-05-02)The focus of this paper is to introduce a novel method for calibrating natural gas flowmeters. This new method can accommodate very large flow rates and it avoids common problems associated with current techniques for meter ...
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Morrison, Gerald L.; Hall, Kenneth R. (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2004-01-20)According to one embodiment of the invention, a computerized method for determining a flow rate of a fluid flowing through a conduit having an obstruction flow meter includes receiving a β ratio value indicative of a β ...
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Alexseev, Alexandre Viktorovich (Texas A&M University, 2005-02-17)Loop heat pipes seem a promising approach for application in modern technologies where such thermal devices as cooling fans and radiators cannot satisfy overall requirements. Even though a loop heat pipe has a big potential ...
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Xu, Jian (2009-05-15)Twin-screw multiphase pumps experience a severe decrease in efficiency, even the breakdown of pumping function, when operating under wet gas conditions. Additionally, field operations have revealed significant vibration ...
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Shin, Yoon Shik (Texas A&M University, 2007-04-25)A rotordynamic analysis of hole-pattern gas annular seals using a two-control-volume model, Ha and Childs and frequency dependent transfer-function model, Kleynhans and Childs is modified with four features. The energy ...
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Morrison, Gerald L.; Holste, James C.; Hall, Kenneth R. (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2002-07-23)This invention is related to flow meter instrumentation. More particularly, the invention is related to obstruction flow meters which are used in series in a flow conduit to determine the volume flow rate of liquid and gas ...
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Morrison, Gerald L.; Holste, James C.; Hall, Kenneth R. (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2002-02-12)This invention is related to flow meter instrumentation. More particularly, the invention is related to obstruction flow meters which are used in series in a flow conduit to determine the volume flow rate of liquid and gas ...
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Lim, Chae H. (2010-01-16)Windback seals work similarly to labyrinth seals except for the effect of helical groove. These seals are essentially a tooth on stator or tooth on rotor labyrinth seal where the grooves are a continuous helical cut like ...
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Neadkratoke, Terdsak (2011-08-08)A numerical method is used to predict flow fields and forces for squeeze film dampers (SFDs). A two dimensional SFD is modeled with different amplitudes and frequencies of the journal orbiting inside the wall. In addition ...
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Khandare, Milind Nandkumar (2012-02-14)Squeeze Film Dampers (SFDs) are employed in high-speed Turbomachinery, particularly aircraft jet engines, to provide external damping. Despite numerous successful applications, it is widely acknowledged that the theoretical ...
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Boppa, Praneetha (2012-10-19)Squeeze film dampers are used in the high speed turbo machinery industry and aerospace industries as a means to reduce vibration amplitude, to provide damping, to improve dynamic stability of the rotor bearing system and ...
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Vijaykumar, Anand (2011-02-22)The flow field in an annular seal is simulated for synchronous circular whirl orbits with 60Hz whirl frequency and a clearance/radius ratio of 0.0154 using the Fluent Computational Fluid Dynamics (CFD) code. Fluent's Moving ...
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Yamsani, Vamshi Krishna (2011-10-21)A computational study was conducted on the flow, both compressible and incompressible, in a labyrinth seal at various geometries and rotation rates. The computations were performed using the commercial software Fluent® ...
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Vasudevamurthy, Gokul (Texas A&M University, 2004-09-30)In order to predict the behavior of bubbly flows, it is necessary to know the three dimensional profiles of the bubbles present in the flow. With advancements in the field of flow visualization, accurate reconstruction of ...
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Villasmil Urdaneta, Larry Alfonso (Texas A&M University, 2006-10-30)Non-contacting annular seals are internal sealing devices used in rotating machinery, such as multistage centrifugal pumps and compressors. Their design affects both efficiency and rotor stability. Traditional plain and ...
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Liu, Kevin (2012-10-19)In this study, the film-cooling effectiveness in different regions of gas turbine blades was investigated with various film hole/slot configurations and mainstream flow conditions. The study consisted of three parts: 1) ...
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Demko, Jonathan Alexander (Texas A&M University. Libraries, 1986)A computational/experimental study was conducted on the incompressible flow in a labyrinth seal at a variety of leakage rates and seal rotation rates. The predictions were obtained using a finite difference code that ...