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Dissertations / Theses on the topic 'Cylindrical pipe'

Author: Grafiati

Published: 15 June 2024

Last updated: 31 July 2025

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1

Tribbe, Christian. "Gas/liquid flow in cylindrical and corrugated channels." Thesis, University of Surrey, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244760.

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2

Ozcakir, Ozge. "Vortex-Wave Solutions of Navier-Stokes Equations in a Cylindrical Pipe." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1388682148.

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3

Basco, Scott William. "One Dimensional Approach to Modeling Damage Evolution of Galvanic Corrosion in Cylindrical Systems." University of Akron / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=akron1367489568.

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4

Komminaho, Jukka. "Direct numerical simulation of turbulent flow in plane and cylindrical geometries." Doctoral thesis, Stockholm, 2000. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3054.

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5

Ghanbarpourgeravi, Morteza. "Investigation of Thermal Performance of Cylindrical Heatpipes Operated with Nanofluids." Doctoral thesis, KTH, Skolan för industriell teknik och management (ITM), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-202566.

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Nanofluids as an innovative class of heat transfer fluids created by dispersing nanometre-sizedmetallic or non-metallic particles in conventional heat transfer fluids displayed the potential toimprove the thermophysical properties of the heat transfer fluids. The main purpose of this study is toinvestigate the influence of the use of nanofluids on two-phase heat transfer, particularly on thethermal performance of the heat pipes. In the first stage, the properties of the nanofluids were studied,then, these nanofluids were used as the working fluids of the heat pipes. The thermal performance oft

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6

McVicker, William Richard. "An analytical approach to open, cylindrical organ-pipe scaling from a historical perspective with specific reference to the scaling practices of selected organ-builders." Thesis, Durham University, 1987. http://etheses.dur.ac.uk/1551/.

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7

Salahifar, Raydin. "Analysis of Pipeline Systems Under Harmonic Forces." Thesis, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/19820.

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Starting with tensor calculus and the variational form of the Hamiltonian functional, a generalized theory is formulated for doubly curved thin shells. The formulation avoids geometric approximations commonly adopted in other formulations. The theory is then specialized for cylindrical and toroidal shells as special cases, both of interest in the modeling of straight and elbow segments of pipeline systems. Since the treatment avoids geometric approximations, the cylindrical shell theory is believed to be more accurate than others reported in the literature. By adopting a set of consistent geom

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8

Charles, Antoine Henri Etienne. "Étude thermo-rhéologique de boues digérées : application à l’écoulement en conduite dans les procédés de méthanisation." Electronic Thesis or Diss., Ecole nationale supérieure Mines-Télécom Lille Douai, 2023. http://www.theses.fr/2023MTLD0008.

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Le besoin en traitement des eaux usées par la société est assurée en usine d’épuration par des traitements menant à la production de boues. Afin d’anticiper l’augmentation de ce besoin à l’avenir, les filières de traitement de ces boues doivent atteindre une certaine efficacité, en termes de traitement et de valorisation des boues. Parmi ces filières, le procédé de méthanisation permet de réduire significativement le volume des boues générées et permet par la suite une valorisation agronomique et énergétique, sous forme de digestat, de biogaz, d’électricité ou de chaleur. Il est néanmoins limi

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9

Guo, Dongshan. "Pipe inspection by cylindrically guided waves." Diss., The University of Arizona, 2001. http://hdl.handle.net/10150/289714.

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In this research the cylindrically guided wave inspection technique is proposed for detecting the anomalies in a pipe. Efficient inspection of pipelines for internal and external damages is a challenging task in the chemical and power industries where long pipelines are used and the pipes are coated by insulating materials. Under traditional methods insulation coatings are removed at selected places, then the pipe wall thickness at these spots is measured by ultrasonic transducers. This is a time-consuming and expensive operation since the operation requires point-to-point examination. Guided

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10

Shaul, Robert. "Wave forces on cylindrical piles and pile groups : a critical review." Master's thesis, University of Cape Town, 1990. http://hdl.handle.net/11427/8293.

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Includes bibliography.<br>This thesis is a critical review of methods of predicting wave forces on vertical piles or groups of piles. It assigns different force prediction theories to different situations or flow regimes and analyses their advantages and disadvantages. The thesis is split into two sections: Section I reviewing the force prediction methods for single piles, and Section II for groups of piles.

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11

Kolomazník, Milan. "Predikce koroze trubek pece s využitím provozních dat." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231497.

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The thesis deals with the modeling and prediction of corrosion of radiation tube snake in the heating furnace. Specifically it is focused on vertical cylindrical furnace which is included in the catalytic hydrocracking unit and serves for heating aggressive circulation gas which is the cause of high temperature corrosion. An important basis for the creation of computational models are available records about the operation of the furnace and about the corrosion and degradation mechanisms during the lifetime of the tube system in furnace. Such information enables the creation of a computational

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12

Woolfe, Katherine. "A scaled physical model for underwater sound radiation from a partially submerged cylindrical shell under impact." Thesis, Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/44874.

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The motivation for this study is to create a scaled laboratory model of a steel construction pile being driven by an impact hammer, which can provide controlled data to aid understanding and development of a structural acoustics numerical model simulating full-scale impact pile driving. The scaled model is approximately thirty times shorter than a typical 30-meter long Cast-in-Shell-Steel (CISS) pile. The relationship between the impact force, structural vibrations, and radiated sound field is analyzed. The time-domain acoustic intensity in the radial direction is found to be predominately neg

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13

Nash, David Hugh. "Local loading and saddle supports on cylindrical vessels : some analytical and finite element studies of local load and saddle support problems with a special emphasis towards generating improved design methods." Thesis, University of Strathclyde, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325680.

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14

Leonard, Kevin Raymond. "Ultrasonic guided wave tomography of pipes: A development of new techniques for the nondestructive evaluation of cylindrical geometries and guided wave multi-mode analysis." W&M ScholarWorks, 2004. https://scholarworks.wm.edu/etd/1539616737.

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This dissertation concentrates on the development of two new tomographic techniques that enable wide-area inspection of pipe-like structures. By envisioning a pipe as a plate wrapped around upon itself, the previous Lamb Wave Tomography (LWT) techniques are adapted to cylindrical structures. Helical Ultrasound Tomography (HUT) uses Lamb-like guided wave modes transmitted and received by two circumferential arrays in a single crosshole geometry. Meridional Ultrasound Tomography (MUT) creates the same crosshole geometry with a linear array of transducers along the axis of the cylinder. However,

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15

Machado, Alexandre Cunha. "Um elemento finito de tubo tridimensional para análise geometricamente não linear de dutos." Universidade Federal de Alagoas, 2006. http://repositorio.ufal.br/handle/riufal/394.

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In transport of fluids or even as structural elements, cylindrical shells are widely used in several segments of structure engineering. The understanding of the behavior of this type of structure along a trajectory of equilibrium resultant of a description of historical loading of different natures and, consequently, is important in the definition of the real load capacity of the ducts. In this work, a finite element for geometric and threedimensional nonlinear analyses of pipes is developed. Taking into account the nature of the analysis, proper measure of tension and deformation that are com

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16

Ruini, Mattia. "Modellazione di un sistema per la dissipazione delle vibrazioni generate dall'installazione delle fondazioni delle turbine eoliche." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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L’infissione nel fondale marino di pali in acciaio di grandi dimensioni costituenti la sottostruttura delle turbine eoliche provoca la nascita e la propagazione di un campo di vibrazioni inquinanti. Tali vibrazioni, le quali possono raggiungere elevate distanze, se al di sopra di particolari soglie di intensità, possono causare danni temporanei o permanenti, di natura fisiologica o comportamentale, alle forme di vita acquatiche circostanti il sito di collocamento dell’elemento strutturale. Tuttavia, diverse soluzioni sono state ideate per ridurne gli effetti nocivi: una di queste è il sistema

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17

Boot, John C. "Design of cylindrical plastic pipe linings to resist buckling due to collapse pressures." 2005. http://hdl.handle.net/10454/462.

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Flexible (non-bonded) polymeric sewer linings are used extensively to renovate both gravity and pressure pipes. Linings for both types of pipe are subject to collapse pressures, and in the case of gravity pipes this is the dominant source of loading; the efficient design of linings to sustain collapse pressures is therefore an important problem. In this paper, the buckling of an ideal thinwalled elastic lining in a rigid cylindrical cavity is first presented as a simple closed form solution, and The effect of a representative small imperfection shown to be significant. The different types

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18

Boot, John C., Akbar A. Javadi, and Irina L. Toropova. "Predicting the creep lives of thin-walled cylindrical polymeric pipe linings to external pressure." 2004. http://hdl.handle.net/10454/3443.

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No<br>This paper considers both the linear elastic and creep buckling of polymeric pipe linings used for the rehabilitation of gravity pipes, for which external groundwater pressure has been identified as the prime source of loading. Theoretically perfect and imperfect conditions are considered, with the imperfections taken to be in the form of a concentric or eccentric annulus between the rigid host pipe (cylindrical constraint) and polymeric lining. Under these conditions two recently obtained mathematical procedures for the prediction of linearly and non-linearly elastic buckling are compar

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19

Boot, John C., Akbar A. Javadi, and Irina L. Toropova. "The structural performance of polymeric linings for nominally cylindrical gravity pipes." 2004. http://hdl.handle.net/10454/2837.

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No<br>This paper considers both the linear elastic and creep buckling of polymeric pipe linings used for the rehabilitation of gravity pipes, for which external groundwater pressure has been identified as the prime source of loading. Theoretically perfect and imperfect conditions are considered, with the imperfections taken to be in the form of a concentric or eccentric annulus between the rigid host pipe (cylindrical constraint) and polymeric lining. Under these conditions two recently obtained mathematical procedures for the prediction of linearly and non-linearly elastic buckling are compar

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20

Huang, Chun-Ming, and 黃俊銘. "Experimental Investigation on the Thermal Performance of a Lop Heat Pipe with a Cylindrical Evaporator." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/75623637529463839455.

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碩士<br>國立臺灣科技大學<br>機械工程系<br>92<br>The heat transfer characteristics of a loop heat pipe with cylindrical-shaped evaporator was studied experimentally. Thermocouples were used to measure temperatures along the loop. Trends of steady-state operating temperature are presented and explained at various operating conditions. The effects of different factors, such as the tilt angles of the loop, the cooling fan speed, the amount of charging capacity of the working fluid, and the type of working fluid, were studied in detail. Temperature hysteresis and low-power start-up problems were observed and disc

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21

Lin, Zong-Le, and 林宗樂. "A Study on the Relationship between the Signal Characteristic of Electromagnetic Acoustic Transducer(EMAT) and the Defect of Cylindrical Pipe." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/56813953360351398024.

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碩士<br>雲林科技大學<br>環境與安全工程系碩士班<br>98<br>There are sets of considerable numbers of pipes in the oil refining, petrochemical and other plants. The pipes are mostly used with metal as conduction pipes, using solder joints to form a piping system. The metal pipes demand for a layer of insulation coated in the pipe surface to achieve the purpose of insulation and corrosion, because of long-term transport of gas and liquid. Due to the space limits, the pipes are bent into a variety of angels or buried under the ground surface. Because the coated pipelines are not easy to disassemble and are buried unde

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22

Cai, Shun-Ji, and 蔡舜吉. "Digital Image Correlation for analysis of cracked cylindrical pipes." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/41222012644669684387.

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碩士<br>國立中興大學<br>土木工程學系所<br>97<br>Abstract The stress concentration at the tip of the crack in the penstock may ignite the fast crack growth and lead to the total failure of the penstock. In the study, the technique of Digital Image Correlation (DIC) is applied to detect the strain distribution around the crack tip in a penstock subjected to the pressure of water. With the experiment results, the DIC solutions are in very good agreement with that of finite element within the elastic range of the material. This shows the technique of Digital Image Correlation is feasible in use for strain measur

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