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Dissertations / Theses on the topic 'Thermal field method'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Ptitsin, V. E. "New Thermal Field Electron Emission Energy Conversion Method." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/35247.

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New thermal field electron emission energy conversion method for vacuum electron-optical systems (EOS) with a nanostructured surface electron sources is offered and developed. Physical and numerical modeling of an electron emission and transport processes for different EOS is carried out. It is shown that at the specific configuration of electrostatic and magnetic fields in the EOS offered method permits to realize energy conversion processes with high efficiency. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35247

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2

James, William Thomas. "Electro-thermal-mechanical modeling of GaN HFETs and MOSHFETs." Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/41212.

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High power Gallium Nitride (GaN) based field effect transistors are used in many high power applications from RADARs to communications. These devices dissipate a large amount of power and sustain high electric fields during operation. High power dissipation occurs in the form of heat generation through Joule heating which also results in localized hot spot formation that induces thermal stresses. In addition, because GaN is strongly piezoelectric, high electric fields result in large inverse piezoelectric stresses. Combined with residual stresses due to growth conditions, these effects are bel

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Christensen, Adam Paul. "Multiscale modeling of thermal transport in gallium nitride microelectronics." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/31681.

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Thesis (Ph.D)--Mechanical Engineering, Georgia Institute of Technology, 2010.<br>Committee Chair: Samuel Graham; Committee Member: Donald Dorsey; Committee Member: Douglas Yoder; Committee Member: Michael Leamy; Committee Member: Sankar Nair; Committee Member: Zhuomin Zhang. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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4

Hösthagen, Anders. "Thermal Crack Risk Estimation and Material Properties of Young Concrete." Licentiate thesis, Luleå tekniska universitet, Byggkonstruktion och brand, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-65495.

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This thesis presents how to establish a theoretical model to predict risk of thermal cracking in young concrete when cast on ground or an arbitrary construction. The crack risk in young concrete is determined in two steps: 1) calculation of temperature distribution within newly cast concrete and adjacent structure; 2) calculation of stresses caused by thermal and moisture (due to self-desiccation, if drying shrinkage not included) changes in the analyzed structure. If the stress reaches the tensile strength of the young concrete, one or several cracks will occur. The main focus of this work is

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Pimenta, Paulo Vicente de Cassia Lima. "Thermomechanical simulation of continuous casting process using element based finite-volume method." Universidade Federal do CearÃ, 2014. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=13684.

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CoordenaÃÃo de AperfeÃoamento de Pessoal de NÃvel Superior<br>The continuous casting technique in the last four decades has been large used for to production of semi-finished steel. The heat transfer is major mechanism and it occurs in various steps during the continuous casting. The quality of steel is directly related to the way the heat transfer occur because the thermal variations produce mechanical loads as well as contact forces which are generated through the rollers and shake of the mold. Such factors may cause defects such as fractures or cracks in the final product if the resulting s

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6

Brdečko, Radim. "Větrací systém automobilu - porovnání vlivu okrajových podmínek na proudění z různých typů vyústek." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417049.

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Diploma thesis deals with a research of the flow in front of three different automotive vents. The velocity field and intensity of the turbulence was measured in detail, using thermoanemometry. After that the same data was measured with PIV method and validation was performed. The difference between achieved data was investigated. The design among the vents was also investigated, because it’s fundamentally affects the air flow. The purpose of this thesis is to obtain data about the velocity field using two methods and their subsequent use to validate numerical simulations, which will be perfor

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Sathyanarayana, Aravind. "Pool and flow boiling of novel heat transfer fluids from nanostructured surfaces." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/50299.

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Steadily increasing heat dissipation in electronic devices has generated renewed interest in direct immersion cooling. The ideal heat transfer fluid for direct immersion cooling applications should be chemically and thermally stable, and compatible with the electronic components. These constraints have led to the use of Novec fluids and fluroinerts as coolants. Although these fluids are chemically stable and have low dielectric constants, they are plagued by poor thermal properties. These factors necessitate the development of new heat transfer fluids with improved heat transfer properties and

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Бокоч, М. М., Георгій Васильович Кулінченко, Георгий Васильевич Кулинченко та Heorhii Vasylovych Kulinchenko. "Побудова теплового поля процесу випалювання цегли". Thesis, Сумський державний університет, 2017. http://essuir.sumdu.edu.ua/handle/123456789/65248.

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Забезпечення розвитку будівничої галузі країни залежить від динаміки будівництва нових та модернізації існуючих цегляних заводів. При цьому основним питанням розвитку залишається енергоємність і трудомісткість процесів виробництва цегли.

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9

Wirnsberger, Peter. "Computer simulation and theoretical prediction of thermally induced polarisation." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/282988.

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In this thesis, we study the phenomenon of thermally induced polarisation using a combination of theory and computer simulation. Molecules of sufficiently low symmetry exhibit thermo-molecular orientation when subjected to a temperature gradient, leading to considerable electrostatic fields in polar liquids. Here, we first use non-equilibrium molecular dynamics simulations to study this interesting effect numerically. To this end, we propose an integration algorithm to impose a constant heat flux in simulations and show that it greatly improves energy conservation compared to a previous algori

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CAVALIERI, TASSIO A. "Emprego do NCNP no estudo dos TLDs 600 e 700 visando a implementação da caracterização do feixe de irradiação na instalação de BNCT do IEA-R1." reponame:Repositório Institucional do IPEN, 2013. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10565.

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Wagner, Valentin Kurt [Verfasser]. "Thermal field methods of the shallow subsurface / Valentin Kurt Wagner." Karlsruhe : KIT-Bibliothek, 2014. http://d-nb.info/1052933432/34.

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Pustějovský, Michal. "Optimalizace teplotního pole s fázovou přeměnou." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232173.

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This thesis deals with modelling of continuous casting of steel. This process of steel manufacturing has achieved dominant position not only in the Czech Republic but also worldwide. The solved casted bar cross-section shape is circular, because it is rarely studied in academical works nowadays. First part of thesis focuses on creating numerical model of thermal field, using finite difference method with cylindrical coordinates. This model is then employed in optimization part, which represents control problem of abrupt step change of casting speed. The main goal is to find out, whether the co

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OLIVEIRA, José Ricardo Ferreira. "Identificação da difusividade térmica de ligas metálicas utilizando um campo de temperatura periódico." Universidade Federal de Campina Grande, 2017. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/1488.

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Submitted by Emanuel Varela Cardoso (emanuel.varela@ufcg.edu.br) on 2018-08-17T17:30:45Z No. of bitstreams: 1 JOSÉ RICARDO FERREIRA OLIVEIRA – DISSERTAÇÃO (PPGEM) 2017.pdf: 2648257 bytes, checksum: 5e08d81aaa5973d7c6fd8bac23c313cc (MD5)<br>Made available in DSpace on 2018-08-17T17:30:45Z (GMT). No. of bitstreams: 1 JOSÉ RICARDO FERREIRA OLIVEIRA – DISSERTAÇÃO (PPGEM) 2017.pdf: 2648257 bytes, checksum: 5e08d81aaa5973d7c6fd8bac23c313cc (MD5) Previous issue date: 2017-11-30<br>CNPq<br>A caracterização termofísica dos materiais utilizados na Engenharia é de grande importância par

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Testa, Samuele. "Airflow fields analysis in bounded domains with CFD methods." Doctoral thesis, Università degli studi di Padova, 2013. http://hdl.handle.net/11577/3423590.

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In the current work the focus is on natural ventilation occurring in buildings. The first step is to discuss the potential of numerical models applied to determine building performance and air flow as part of a mixed mode building control scheme with respect to a test case. A dynamic simulation software (TRNSYS) is used to estimate the annual energy demand. An optimization program (GenOpt) changes iteratively the parameters regulating the airflow within the building model in order to minimize the whole year energy use. Elements which are considered in the analysis are outdoor climatic conditio

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15

Ali, Salamat. "Specific heat measurements using the A.C. technique on the chevrel phase superconductor Pb(_1-x)Gd(_x)Mo(_6)S(_8) in high magnetic fields." Thesis, Durham University, 1996. http://etheses.dur.ac.uk/5284/.

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We have developed a probe to measure specific heat of Gd-doped PbMo(_6)S(_8), at low temperatures in high magnetic fields up to 12.5 T using a heat pulse method and an a.c. technique. Comparison between these heat capacity measurements and transport measurements provides critical complimentary information about fundamental thermodynamic properties and granularity m superconductors. We have used a tiny, robust, highly sensitive and broadly field independent Cemox thermometer (CX-1030), eliminating the use of bulky gas thermometry or capacitance thermometry. The diameter of the probe is 20 min w

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Castellví, Fernández Quim. "Non-focal non-thermal electrical methods for cancer treatment." Doctoral thesis, Universitat Pompeu Fabra, 2017. http://hdl.handle.net/10803/586217.

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Most physical ablation modalities for cancer treatment are focal and are based on thermal damage. Despite their regular clinical use as an alternative to surgical resection, their thermal principle of operation entails risks regarding the preservation of neighboring vital structures, such as large vessels, critical ducts or nerves. In addition, being focal, their use is unpractical in cases where multiple nodules are present or tumors are difficult to reach with the applicators. This thesis explores non-thermal electrical treatments which can be applied in a non-focal manner. Two treatments

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17

Yarimpabuc, Durmus. "Numerical Simulation Of Thermal Convection Under The Influence Of A Magnetic Field By Using Solenoidal Bases." Phd thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613393/index.pdf.

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The effect of an imposed magnetic field on the thermal convection between rigid plates heated from below under the influence of gravity is numerically simulated in a computational domain with periodic horizontal extent. The numerical technique is based on solenoidal basis functions satisfying the boundary conditions for both velocity and induced magnetic field. The expansion bases for the thermal field are also constructed to satisfy the boundary conditions. The governing partial differential equations are reduced to a system of ordinary differential equations governing the time evolution of t

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18

Moreau, Denis. "Etude de mélange de jets gazeux dans une chambre de combustion." Rouen, 1988. http://www.theses.fr/1988ROUES043.

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Etude expérimentale du mélange de plusieurs jets ronds gazeux dans différents types de configuration (doublet, triplet, quintriplet, multitriplet). Emploi de deux méthodes de diagnostic: visualisation par tomographie flash (étude qualitative de la structure des jets avant et après l'interaction) et méthode thermique (évolution du mélange par la mesure des caractéristiques du champ de température)

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19

Beyers, Johannes Henricus Meiring. "A finite volume method for the analysis of the thermo-flow field of a solar chimney collector." Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/51568.

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Thesis (MEng)--University of Stellenbosch, 2000.<br>ENGLISH ABSTRACT: This study investigates the implementation of the finite volume numerical method applicable to non-orthogonal control volumes and the application of the method to calculate the thermo-flow field within the collector area of a solar chimney power generating plant. The discretisation of the governing equations for the transient, Newtonian, incompressible and turbulent fluid flow, including heat transfer, is presented for a non-orthogonal coordinate frame. The standard k - E turbulence model, modified to include rough s

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20

Dai, Wenhua. "Large signal electro-thermal LDMOSFET modeling and the thermal memory effects in RF power amplifiers." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1078935135.

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Thesis (Ph. D.)--Ohio State University, 2004.<br>Title from first page of PDF file. Document formatted into pages; contains xix, 156 p.; also includes graphics (some col.). Includes bibliographical references (p. 152-156).

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Mehra, Bineet. "Design and optimisation of innovative electronic cooling heat sinks with enhanced thermal performances using numerical and experimental methods." Thesis, Ecole nationale supérieure Mines-Télécom Lille Douai, 2019. http://www.theses.fr/2019MTLD0005/document.

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Cette thèse de doctorat s’intéresse aux mécanismes d’amélioration des transferts dans des géométries de dissipateurs thermiques à plaques et ailettes. Une première partie est consacrée à l’étude d’une configuration académique à l’aide de simulations numériques visant à obtenir une amélioration du transfert de chaleur conjugué en modifiant uniquement par des découpes la forme géométrique des ailettes planes conductrices. Une analyse locale approfondie de l’écoulement et des champs thermiques a été effectuée avec notamment le principe de synergie locale, des champs de vitesse et de gradients the

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22

Grmela, Petr. "Analýza teplotního pole u asynchronního stroje." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218763.

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This thesis is dealing with thermal fields and the possibilities of their solution by a finite element method. Thereinafter thesis describe assembling a 3D model of induction machine with known parameters, and solving thermal field of the model by Ansys Workbench program and verification of these results by practical measuring on real machine.

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Troussaut-Bertrand, Francine. "Etude du KH2PO4 au voisinage du point tricritique : mesures de biréfringence sous pression et détermination des coefficients d'électrostriction." Grenoble 1, 1987. http://www.theses.fr/1987GRE10039.

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Mise en evidence de la possibilite d'etude des variations du parametre d'ordre, en fonction de la pression, de la temperature et du champ electrique, a partir de mesures de birefringence; confirmation de l'ordre de transition de rbh::(2)po::(4) et etude du diagramme de phases 3d de kh::(2)po::(4) au voisinage d'un point tricritique. Etude des proprietes electromecaniques de kh::(2)po::(4) par une nouvelle technique de diffraction simultanee neutron-gamma, dans le but de preciser la relation entre les variations du parametre d'ordre et les anomalies de la dilatation au voisinage de la transitio

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Khlifi, Imad. "Optimisation of optical methods for strain field measurements dedicated to the characterisation of the fracture behaviour of refractories : Application to magnesia based materials." Thesis, Limoges, 2019. http://www.theses.fr/2019LIMO0123.

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Les briques de magnésie-spinelle et magnésie-hercynite sont fréquemment utilisées dans les fours rotatifs de cimenterie pour leur tenue aux chocs thermiques venant d’une résistance accrue à la propagation de fissures conférée par leur microstructure. Les réseaux de microfissures résultant du différentiel de dilatation thermique entre la matrice magnésienne et les agrégats de spinelle/hercynite favorisent l'activation de mécanismes dissipatifs d’énergie au sein de la zone d’élaboration de la rupture (FPZ) lors d’un chargement mécanique. Dans cette étude, le comportement à la rupture de matériau

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Hébrard, Louis. "Study on the effect of the environment on internal fatigue crack propagation in Ti-6Al-4V." Electronic Thesis or Diss., Lyon, INSA, 2023. http://www.theses.fr/2023ISAL0120.

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Dans le domaine de fatigue des très grandes durées de vie (plus grandes que 1e7 cycles), les fissures de fatigue ont tendance à amorcer en interne. Il est donc impossible de les détecter visuellement pendant une opération de maintenance. Par conséquence, une connaissance robuste du comportement de ces fissures de fatigue interne est nécessaire afin d'anticiper un amorçage pouvant amener à la rupture d'une pièce critique. Pour collecter ce type de données, des méthodes expérimentales in-situ de suivi de fissure sont développées. En particulier, la micro-tomographie par rayons X permet l'acquisi

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Haratek, Jiří. "Výpočet rozložení teplotního pole v elektrickém stroji." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2017. http://www.nusl.cz/ntk/nusl-318865.

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This diploma thesis deals with methods used to determine the temperature field distribution within an electric machine. The first part is focused on methods of temperature measurement, generation and transfer of the thermal energy within the electric machine, asynchronous motor in particular. The thesis describes classical methods of temperature measurement and it also deals with ANSYS Workbench finite element method for thermal analysis of the motor. The final part of the thesis is focused on a comparation of all discussed methods with respect to results of thermal test for real asynchronous

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Славков, Віктор Миколайович. "Розробка цифрового фотографічного методу теплового контролю металів при високих температурах". Thesis, НТУ "ХПІ", 2015. http://repository.kpi.kharkov.ua/handle/KhPI-Press/17036.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.11.13 - прилади і методи контролю та визначення складу речовин. Національний технічний університет "Харківський політехнічний інститут", Харків, 2015 р. Дисертацію присвячено розробці методу теплового контролю металів при температурах понад 600 °С із використанням, у якості детектора теплового випромінювання, цифрового фотоапарата. На основі встановлених теоретичних положень методу розроблені програмні алгоритми обробки цифрових зображень, що дозволили: провести процедуру калібрування цифрового фотоапарата у

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Славков, Віктор Миколайович. "Розробка цифрового фотографічного методу теплового контролю металів при високих температурах". Thesis, НТУ "ХПІ", 2015. http://repository.kpi.kharkov.ua/handle/KhPI-Press/17002.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.11.13 - прилади і методи контролю та визначення складу речовин. Національний технічний університет "Харківський політехнічний інститут", Харків, 2015 р. Дисертацію присвячено розробці методу теплового контролю металів при температурах понад 600 °С із використанням, у якості детектора теплового випромінювання, цифрового фотоапарата. На основі встановлених теоретичних положень методу розроблені програмні алгоритми обробки цифрових зображень, що дозволили: провести процедуру калібрування цифрового фотоапарата у

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Ayvazyan, Vigen. "Etude de champs de température séparables avec une double décomposition en valeurs singulières : quelques applications à la caractérisation des propriétés thermophysiques des matérieux et au contrôle non destructif." Thesis, Bordeaux 1, 2012. http://www.theses.fr/2012BOR14671/document.

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La thermographie infrarouge est une méthode largement employée pour la caractérisation des propriétés thermophysiques des matériaux. L’avènement des diodes laser pratiques, peu onéreuses et aux multiples caractéristiques, étendent les possibilités métrologiques des caméras infrarouges et mettent à disposition un ensemble de nouveaux outils puissants pour la caractérisation thermique et le contrôle non desturctif. Cependant, un lot de nouvelles difficultés doit être surmonté, comme le traitement d’une grande quantité de données bruitées et la faible sensibilité de ces données aux paramètres rec

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Zang, Zhong-Yuan, and 臧忠元. "The Simulation of Thermal Flow Field in LPCVD Chamber Using Parallel DSMC Method." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/73951074901214840920.

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碩士<br>國立交通大學<br>機械工程系<br>90<br>In this thesis, the parallelization is applied to DSMC method by utilizing chain partitioner. The computation is carried out on a PC cluster system consisting of nine processors. The preliminary results are compared with the Hsiao’s single-processor results [5], to demonstrate the advantage of parallelization. The computational domain is decomposed according to the same number of simulated particles in each processor. When a parallel program is executed on a distributed memory system, the speedup may not be proportional linearly to the number of processor. T

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Shih, Man-Wen, and 施嫚雯. "Measurement of energy loss of magnetic microstructures under alternating magnetic field by thermal deflection method." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/00521111009361226295.

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Chang, Cheng-Chi, and 張鉦淇. "A study on multi-branch channel thermal mixing flow by Lattice Boltzmann method and field synergy principle." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/41790448978282811749.

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碩士<br>國立成功大學<br>機械工程學系碩博士班<br>95<br>This study applies the Lattice Method to simulate low Reynolds number, steady-state and 2-D incompressible thermal mixing flow in a multi-branch channel. The pressure difference of inlet and outlet is set appropriately so that the fluid particles can be driven. To accelerate the efficiency of the thermal mixing, the distinct shapes of obstacles are inserted into the straight wall being in back of the multi-branch channel. After the fluid particles bomb into the obstacles, the variation of the flow and temperature field then generated. When the fluid particle

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Hsiao, Chi-Hong, and 蕭啟宏. "The Simulation of Thermal Flow Field and Film Deposition in Vertical Rotating Substrate for LPCVD Using DSMC Method." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/00031111807177172417.

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碩士<br>國立交通大學<br>機械工程系<br>89<br>This thesis analyzes the flow and thermal field in a vertical LPCVD chamber with rotating susceptor by using DSMC method. It aims at the remodeling of boundary conditions to eliminate the shortcoming in Dei’s work [1], the extra design parameters, such as inlet tube diameter, gravity, and side-wall temperature and an application of parallel computation. For the different design parameters, the predicted results show that a higher average deposition rate and better uniformity can be achieved by shortening the distance between inlet and substrate. It leads to a

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Yang, Pao-Ming, and 楊寶明. "Analysis of Thermal Flow Field and Film Deposition in Vertical Rotating Substrate for LPCVD Using the DSMC Method." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/25103700096549347988.

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碩士<br>國立交通大學<br>機械工程系<br>87<br>This thesis analyzes the flow and thermal field in a vertical LPCVD chamber with rotating susceptor by using the DSMC method. Complying with the requirements of project "Development of Cu-CVD Technology and Fabrication" supported by the National Science Council of Taiwan, this work aims at exploring the Cu-deposition characteristics of various operating parameters, including the sticking coefficient (Sc), activation energy, temperature distribution on the susceptor, and different carrier gases. For the simulation of using different carrier gas, it quarries the

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Hsu, Yao-An, and 許燿安. "Prediction of Early Hydration Behavior of Concrete by Maturity Method and Finite Element Analysis of Early Thermal Field for Mass Concrete." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/y8nahd.

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碩士<br>國立臺灣大學<br>土木工程學研究所<br>106<br>The strength and stiffness of concrete come from the C-S-H gel produced by hydration reaction of cement, pozzolanic material and mixing water. Hydration reaction is exothermic chemical reaction. 1 to 3 days after concrete placement is the most severe stage of hydration reaction, and this period is also the fastest stage of concrete temperature rise. Because of its large size and poor thermal conductivity of concrete, mass concrete has heat storage at the center at the early age. Moreover, the high temperature environment stimulates the rate of hydration react

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Sun, Yun-Chiang, and 孫運強. "Analysis of Thermal Flow Field in Vertical Rotating Injector Low Pressure Chemical Vapor Deposition Reactor Using the Directs Simulation Monte Carlo Method." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/47907890823565153955.

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碩士<br>國立交通大學<br>機械工程研究所<br>86<br>This thesis applies a numerical technique, DSMC, to simulate the thermal flow field in a vertical low-pressure Cu-CVD reactor. It is incorporated with a project supported by a manufacturer and the National Science council, ROC, under a contract, NSC87-2622-E-009-004. The main purpose is to provide the simulation data as a reference for designing the reacting chamber. According to the requirement of the manufacturer, the effects of rotating injector with fixed suscepter are investigated numerically in this thesis. The parametric studies are based on the changes

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Lin, Chen-Yun, and 林辰昀. "Analysis of the Thermal and Fluid Flow Fields under Multiple-Nozzle Impingement Jet Cooling with Taguchi Method." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/k9d539.

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碩士<br>國立虎尾科技大學<br>車輛工程系碩士班<br>101<br>In the era of technological progress increasingly, electronic components develop towards compact size and precision. As the power of the electronic product quickly raises, it accompanies with a large amount of heat generation. The high heat generation effect significantly shortens the life of electronic components. Therefore developing the cooling module has become an important topic. Among these studies, the impingement jet integrated with the heat sink with excellent thermal conductivity properties provides a large heat reduction effect for local rapid co

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Hung, Kuo-Shu, and 洪國書. "Numerical Method for Analysis of Thermal and Flow Fields of Compressible Flow in an Enclosure with Periodically Moving Boundary." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/77261804017888908369.

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博士<br>大同大學<br>機械工程學系(所)<br>94<br>The aim of this thesis is to develop a numerical method for analysis of thermal and flow fields of compressible flow in an enclosure with periodically moving boundary. The combined influence of the partitions, movement of the walls, and the buoyancy as well on the flow pattern and heat transfer performance is evaluated. The two-stage pressure correction scheme is developed and modified for simultaneously determining the distributions of absolute pressure, density, temperature, and velocity of the compressible flow field in the enclosure during the start-up and

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Niu, Furong. "Transpiration by oil palm and rubber plantations: refining methods and delineating differences." Doctoral thesis, 2016. http://hdl.handle.net/11858/00-1735-0000-002B-7C2C-3.

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Дудка, Владислав Сергійович. "Особливості технології вирощування монокристалів кремнію". Магістерська робота, 2020. https://dspace.znu.edu.ua/jspui/handle/12345/4778.

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Дудка В. С. Особливості технології вирощування монокристалів кремнію : кваліфікаційна робота магістра спеціальності 136 "Металургія" / наук. керівник Р. М. Воляр. Запоріжжя : ЗНУ, 2020. 61 с.<br>UA : Проведено аналіз методів вирощування монокристалів кремнію та оцінено структуру та зріст монокристалів по методу Чохральського. Виконана оцінка температурних полів в зоні росту монокристалів, що можуть допомогти оптимізувати процес вирощування монокристалів кремнію. Проаналізовано швидкості зросту монокристалів кремнію по базових напрямах.<br>EN : The analysis of methods for growing silicon single

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Gaspar, Ana Pimentel Torres. "Contribution to control uncertainties in numerical modelling of dam performances: an application to an RCC dam." Doctoral thesis, 2014. http://hdl.handle.net/1822/35837.

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Tese de doutoramento em "Civil Engineering" (ramo do conhecimento em "Geotechnics")<br>The use of fully probabilistic approaches to account for uncertainties within dam engineering is a recently emerging field on which studies have been mostly done concerning the safety evaluation of dams under service. This thesis arises within this framework as a contribution on moving the process of risk analysis of dams beyond empirical knowledge, applying probabilistic tools on the numerical modelling of a roller compacted concrete (RCC) dam during its construction phase. The work developed here aim

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