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Dissertations / Theses on the topic 'CLD analysis'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

King, Matthew Lee. "A CAD-centric Approach to CFD Analysis With Discrete Features." Diss., CLICK HERE for online access, 2004. http://contentdm.lib.byu.edu/ETD/image/etd570.pdf.

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2

Павлик, Анатолій Володимирович, Анатолий Владимирович Павлик та Anatolii Volodymyrovych Pavlyk. "Еколого-економічне оцінювання ефективності використання відновлювальних джерел енергії". Thesis, Сумський державний університет, 2019. http://essuir.sumdu.edu.ua/handle/123456789/75092.

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У дисертації вдосконалені наукові засади оцінювання еколого-економічної ефективності впровадження ВДЕ, що враховують екологічні та економічні наслідки їх використання. Це дозволило визначити оптимальну структуру забезпечення електричною енергією національної економіки. Виявлені причинно-наслідкові зв’язки між екодеструктивним впливом на навколишнє середовище та енергетичною, екологічною і економічною безпекою країни. Розвинуто науково-методичний підхід до формування організаційно-економічного механізму впровадження економічно доцільних та екологічно безпечних ВДЕ. Запропоновано методичний підх

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3

Barstad, Lorentz Fjellanger. "CFD Analysis of a Pelton Turbine." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for energi- og prosessteknikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18598.

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A Pelton design software is currently being developed at the Waterpower laboratory at NTNU. The motivation behind this software is to streamline the parametric design process for Pelton turbines. A numerical flow model is a cornerstone in this application, but the lack of a bucket geometry and model runner has prevented the development of such a model. DynaVec, a turbine producer who specializes on sediment erosion and corrosion problems, offered to help by providing a bucket geometry and a model runner.The objective of this Master's thesis was to develop and validate a CFD model that pre

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4

Thelin, Fredrik. "A CFD Analysis of Cyclodial Propellers." Thesis, Linköpings universitet, Mekanisk värmeteori och strömningslära, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-144535.

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The quest for more efficient machines is always ongoing in the engineering world. This project is no different. ABB are investigating a new type of propeller that seems to offer increased efficiency compared to normal screw propellers. That is a so called foil wheel propeller. The foil move in a circular pattern with the fluid stream moving in the radial direction of the propeller instead of the axial as in a screw propeller. If the propeller is placed and modeled correctly it can also be used as a thrust vectoring device. This report focuses on the fluid physics of the foil wheel propeller, o

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5

Juretic, Franjo. "Error analysis in finite volume CFD." Thesis, Imperial College London, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.420616.

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6

Spentzos, Agis. "CFD analysis of 3D dynamic stall." Thesis, University of Glasgow, 2005. http://theses.gla.ac.uk/1855/.

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Focusing on helicopter aerodynamics, it is known that the aerodynamic performance of the retreating side of a rotor disk is mainly dictated by the stall characteristics of the blade. Stall under dynamic conditions (Dynamic Stall) is the dominant phenomenon encountered on heavily loaded fast-flying rotors, resulting in an extra lift and excessive pitching moments. Dynamic stall (DS) can be idealised as the pitching motion of a finite wing and this is the focus of the present work which includes three main stages. At first, comparisons between available experimental data with CFD simulations wer

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7

Kokkonen, Toni. "CFD analysis of stepped planing vessels." Thesis, KTH, Mekanik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-250023.

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High speed planing hulls are currently widely used for example in recreational and emergency vessel applications. However, very little CFD research has been done for planing vessels, especially for those with stepped hulls. A validated CFD method for planing stepped hulls could be a valuable improvement for the design phase of such hulls. In this thesis, a CFD method for stepped hulls, with a primary focus on two-step hulls, is developed using STAR-CCM+. As a secondary objective, porpoising instability of two-step hulls is investigated. The simulations are divided into two parts: In the first

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8

Ghate, Devendra. "Inexpensive uncertainty analysis for CFD applications." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:6be44a1d-6e2f-4bf9-b1e5-1468f92e21e3.

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The work presented in this thesis aims to provide various tools to be used during design process to make maximum use of the increasing availability of accurate engine blade measurement data for high fidelity fluid mechanic simulations at a reasonable computational expense. A new method for uncertainty propagation for geometric error has been proposed for fluid mechanics codes using adjoint error correction. Inexpensive Monte Carlo (IMC) method targets small uncertainties and provides complete probability distribution for the objective function at a significantly reduced computational cost. A b

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9

Kern, Simon. "Sensitivity Analysis in 3D Turbine CFD." Thesis, KTH, Mekanik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-210821.

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A better understanding of turbine performance and its sensitivity to variations in the inletboundary conditions is crucial in the quest of further improving the efficiency of aero engines.Within the research efforts to reach this goal, a high-pressure turbine test rig has been designedby Rolls-Royce Deutschland in cooperation with the Deutsches Zentrum für Luft- und Raumfahrt(DLR), the German Aerospace Center. The scope of the test rig is high-precision measurement ofaerodynamic efficiency including the effects of film cooling and secondary air flows as well as theimprovement of numerical pred

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10

URBANO, DARIO GIUSEPPE. "CFD ANALYSIS OF A VACUUM MICROGRIPPER." Doctoral thesis, Università degli studi di Brescia, 2021. http://hdl.handle.net/11379/550301.

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11

Hamilton, Emma. "Analysis of the tumour microenvironment in CLL." Thesis, King's College London (University of London), 2013. https://kclpure.kcl.ac.uk/portal/en/theses/analysis-of-the-tumour-microenvironment-in-cll(7e13948f-c23d-4066-93ee-e86bb8fa7943).html.

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This thesis applies systems biology approaches to obtain a better understanding of complex cellular systems in Chronic Lymphocytic Leukaemia (CLL).CLL is a cancer of the blood which affects B cells. CLL cells accumulate quickly in the body but die rapidly by apoptosis when cultured in the lab, suggesting that CLL cell survival can be modulated by tumour cell interactions with the microenvironment in vivo. The first part of the thesis describes in vitro assays which demonstrated that CLL cell contact with endothelial cells in a co-culture system promotes CLL cell survival. The precise mechanism

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12

Sattar, Zubaida Abdul. "Analysis of cylindrical semiconductor metal-clad nano-lasers." Thesis, Bangor University, 2014. https://research.bangor.ac.uk/portal/en/theses/analysis-of-cylindrical-semiconductor-metalclad-nanolasers(c744a197-b40a-4849-b086-d65fe3fff527).html.

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13

Aljure, Osorio David Eduardo. "Aerodynamic analysis of complex geometries using CFD." Doctoral thesis, Universitat Politècnica de Catalunya, 2017. http://hdl.handle.net/10803/454977.

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Aerodynamic analysis has become one of the most important tools in many engineering applications. In this sense, this thesis work is aimed at performing aerodynamic analysis of different geometries, expanding the available knowledge and obtaining valuable insight from the obtained results. Aerodynamic analysis can be carried out, principally, in two ways: Experimental research and Computational Fluid Dynamics (CFD). The former makes use of prototypes, wind tunnels and test tracks, making it a very expensive option. On the other hand, CFD makes use of numerical tools to solve the Navier-Stokes

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14

Kumar, Sushil. "CFD Analysis of an axial piston pump." Doctoral thesis, Universitat Politècnica de Catalunya, 2010. http://hdl.handle.net/10803/21794.

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En el ámbito de la Oleohidráulica, las bombas de pistón poseen los diseños más sofisticados, de hecho, las bombas de pistones son las únicos capaces de trabajar a altas presiones, además de poseer el mejor rendimiento de todo el grupo de bombas existentes. Sin embargo, cabe señalar que todos los diseños de las bombas de pistón, se basan principalmente en la experiencia de los diseñadores, por lo tanto no existen herramientas matemáticas para optimizar el diseño de las diferentes partes de las bombas. Por otra parte, en la actualidad hay empresas como Oilgear Towler, que inserta ranuras (surcos

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15

Lynch, Charles Eric. "Advanced CFD methods for wind turbine analysis." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/39491.

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Horizontal-axis wind turbines operate in a complex, inherently unsteady aerodynamic environment. The flow over the blades is dominated by 3-D effects, particularly during stall, which is accompanied by massive flow separation and vortex shedding. There is always bluff-body shedding from the turbine nacelle and support structure which interacts with the rotor wake. In addition, the high aspect ratios of wind turbine blades make them very flexible, leading to substantial aeroelastic deformation of the blades, altering the aerodynamics. Finally, when situated in a wind farm, turbines must ope

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16

Nielsen, Paul. "3D CFD-analysis of conceptual bow wings." Thesis, KTH, Marina system, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-31072.

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As a small step towards their long-term vision of one day producing emission free vessels, Wallenius em-ployed, in 2009, Mårten Silvanius to carry out his master thesis for them in which he studied five different concepts to reduce the overall fuel consumption using wind powered systems. The vessel on which his study was performed is the 230 m LCTC vessel M/V Fedora. One of the concepts studied was the bow wing which is thought to generate enough force in the ship direction to profitably reduce the overall wind resistance. His calculations showed that the wing would be the preferred method of

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17

Pulugundla, Gautam. "CFD design analysis of ventilated disc brakes." Thesis, Cranfield University, 2008. http://dspace.lib.cranfield.ac.uk/handle/1826/6578.

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This thesis reports the numerical investigation of the automotive ventilated disc brake rotor. Disc brakes operate on the principle of friction by converting kinetic energy into heat energy. The main objective of a disc brake rotor is to store this heat energy and dissipate it as soon as possible. This work is carried out in a area where there is very limited understanding. Commercial CFD code FLUENT was used for carrying out the simulations with the rotor rotating in still air. Only one passage and blade were simulated as all the rotor passages were identical. Uniform temperatures were used o

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18

Nayyar, Punit. "CFD analysis of transonic turbulent cavity flows." Thesis, University of Glasgow, 2005. http://theses.gla.ac.uk/6617/.

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This thesis presents the study of transonic cavity flows using CFD. The main focus of the thesis is on the turbulence modelling and simulation of cavity flows. The thesis aims to show the range of applicability of turbulence modelling for cavity flows. Aspects of cavity flow control are also addressed. The cavity models a weapons bay with a length-to-depth (L/D) ratio of 5 and length-to-width (L/W) ratio of 1. The flow is set to transonic speeds (M=0.85) and the Reynolds number based on the cavity length is in the turbulent regime (Re=6.783 million). At these flow conditions, very high noise l

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19

Camilher, Daniel Galvão. "CFD analysis of laminar axisymmetric diffuser flow." Instituto Tecnológico de Aeronáutica, 2009. http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=868.

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In this current work it is presented the two-dimensional axisymmetrical air flow simulations under laminar regime in a conical diffuser using Computer Fluid Dynamics (CFD). The use of diffusers in laminar flow can be seen in micro-pumps applications, especially for micro-electronics cooling. The objective is to analyze the static pressure recovery coefficient (Cp) for Reynolds 64, varying the diffuser expansion angle and the diffuser exit/entrance area ratio (A2/A1 = 1.5 and 2.0) for the cases with and without tail pipe. The diffuser geometric configurations and the Cp formulation are based i

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20

Zhang, Xiang. "Dimensional analysis based CFD modelling for power transformers." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/dimensional-analysis-based-cfd-modelling-for-power-transformers(49cac27d-38b9-4f23-a6ec-b5106422420c).html.

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Reliable thermal modelling approaches are crucial to transformer thermal design and operation. The highest temperature in the winding, usually referred to as the hot-spot temperature, is of the greatest interest because the insulation paper at the hot-spot undergoes the severest thermal ageing, and determines the life expectancy of the transformer insulation. Therefore, the primary objective of transformer thermal design is to control the hot-spot temperature rise over the ambient temperature within certain limit. For liquid-immersed power transformers, the hot-spot temperature rise over the a

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21

Ljung, Anna-Lena. "Drying of iron ore pellets : analysis with CFD." Licentiate thesis, Luleå : Luleå University of Technology, 2008. http://epubl.ltu.se/1402-1757/2008/14/.

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22

Trebilcock, R. M. "Intelligent Link Between Design, CAD and Structural Analysis." Thesis, Cranfield University, 1998. http://hdl.handle.net/1826/3545.

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This study outlines the requirement for a company to be able to manage its intellectual capital. On the basis of this requirement this study presents a new design methodology based around the requirements of the military aircraft industry. It tackles the difficult management problem of capturing, storing and re-using valuable company product knowledge. The detailed research documented in this thesis focuses on the conceptual design area of this methodology. Work in this area has resulted in the development of a further methodology for the conceptual design arena. This methodology is called the

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23

Tate, Susan J. "Symmetry and shape analysis for assembly-oriented CAD." Thesis, Cranfield University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323831.

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24

Li, Yichuan. "CFD Pre-test Analysis of SIMECO-2 Experiment." Thesis, KTH, Fysik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-192845.

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25

GÜDÜCÜ, Mustafa. "CFD analysis of nozzle effect on jet formation." Thesis, KTH, Mekanik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-194455.

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This project is concerned with CFD simulations of jets issued from elliptical nozzles. The investigated jet flow in this project is turbulent flow emanating from microscopic nozzles into a combustion chamber. Jet flows are very common in engineering, medical and environmental applications and are for instance used in fuel injection systems, spray painting and drying. Jet flow devices are also very common in applications such as cutting, hydraulic drilling, cooling and heating. A better understanding of the flow phenomenons in jet flows are required in order to make these devices function and p

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26

Lanchman, Troy J. "Using CFD to Improve Off-Design Throughflow Analysis." Wright State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=wright1559828068015963.

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27

Carrion, Marina. "Low mach number CFD for wind turbine analysis." Thesis, University of Liverpool, 2014. http://livrepository.liverpool.ac.uk/2005639/.

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To maximise the amount of energy extracted from wind turbines, the rotor diameter has increased, reaching values of 160m in some cases. Large scale wind turbines are working at high Reynolds numbers and a wide range of flow conditions, with virtually incompressible flow present at the root and mildly compressible near the blade tips, where the Mach numbers can reach locally 0.48 for the largest wind turbines employed to date. In traditional aerodynamics, most CFD methods were designed to cope with high Mach number flows and consequently solve the compressible Navier-Stokes equations. This is t

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28

Martini, Giulia <1987&gt. "CAD Aspects on Isogeometric Analysis and Hybrid Domains." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amsdottorato.unibo.it/7340/1/Tesi_Martini.pdf.

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This thesis is the result of a Ph.D. program in Alto Apprendistato carried out at the Dipartimento di Informatica - Scienza e Ingegneria (DISI) of the University of Bologna and at the company devDept Software. With regard to the professional side of my Individual Training Project, I developed technical and scientific skills in 3D geometry of curves and surfaces, CAD, and Finite Element Analysis (FEA). Regarding the academic side, I investigated CAD aspects in the field of Isogeometric Analysis (IGA) on both single and hybrid multipatch physical domains. Simulations are performed in classi

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Martini, Giulia <1987&gt. "CAD Aspects on Isogeometric Analysis and Hybrid Domains." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2016. http://amsdottorato.unibo.it/7340/.

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This thesis is the result of a Ph.D. program in Alto Apprendistato carried out at the Dipartimento di Informatica - Scienza e Ingegneria (DISI) of the University of Bologna and at the company devDept Software. With regard to the professional side of my Individual Training Project, I developed technical and scientific skills in 3D geometry of curves and surfaces, CAD, and Finite Element Analysis (FEA). Regarding the academic side, I investigated CAD aspects in the field of Isogeometric Analysis (IGA) on both single and hybrid multipatch physical domains. Simulations are performed in classi

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30

Macchion, Olivier. "CFD in the design of gas quenching furnace." Doctoral thesis, Stockholm : Department of Mechanics, Royal Institute of Technology, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-239.

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31

Tuhovčák, Ján. "CFD simulace proudění chladiva semihermetickým kompresorem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230438.

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The CFD simulation of cooling piston compressor Stream, manufactured by Emerson company, is the topic of this diploma thesis. Analysis of moving parts (piston, valves) and refrigerant or physical settings for simulation were based on experimental data provided by Emerson. The goal of the thesis is to test opportunities of Star-CCM+ in simulating the flow inside the compressor. In the end there will be a comparison of experimental data and results from the simulation. The thesis also contains a theoretical background of piston compressors and phenomenon following the operating compressor.

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32

Garcia, Barceló Roger. "Mesh sensitivity analysis on wind farms using CFD wind flow models and CFD wake models." Mémoire, École de technologie supérieure, 2012. http://espace.etsmtl.ca/1087/1/GARCIA_BARCELO_Roger.pdf.

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Actuellement, les énergies renouvelables semblent prendre au jour le jour plus de poids dans les politiques énergétiques actuelles. Entre les multiples formes, l’énergie éolienne, ayant une grande présence de nos jours, est celle qui présente des prévisions de majeure croissance lors des prochaines décennies. Un outil très efficace pour la prédiction de la ressource éolienne sont les simulations CFD. Cette technique permet de résoudre les équations qui gouvernent le mouvement d’écoulement en tenant compte des effets de recirculation et de séparation. Evidemment, les résultats d’une simulati

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Camprubí, Estebo Natalia. "Design and analysis in shape optimization of shells." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=972764135.

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Yalcin, Fidan Seza. "Cfd Analysis Of A Notebook Computer Thermal Management Solution." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12609483/index.pdf.

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In this study, the thermal management system of a notebook computer is investigated by using a commercial finite volume Computational Fluid Dynamics (CFD) software. After taking the computer apart, all dimensions are measured and all major components are modeled as accurately as possible. Heat dissipation values and necessary characteristics of the components are obtained from the manufacturer&#039<br>s specifications. The different heat dissipation paths that are utilized in the design are investigated. Two active fans and aluminum heat dissipation plates as well as the heat pipe system are m

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Rajamani, Gokul Krishnan, and s3076297@student rmit edu au. "CFD analysis of air flow interactions in vehicle platoons." RMIT University. Aerospace, Mechanical and Manufacturing Engineering, 2006. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20061114.122130.

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The increasing use of Intelligent Transport System (ITS) can enable very close vehicle spacings which generally results in a net drag reduction for the resulting convoys. The majority of vehicle development has, to date, been for vehicles in isolation, thus the study of interaction effects is becoming increasingly important. The main objective of this research is to investigate the use of Computational Fluid Dynamics (CFD) for understanding convoy aerodynamics and to further the understanding of airflow interaction between vehicles via CFD. In this study, time-averaged characteri

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Vincent, Raymond A. Jr. "Efficiency analysis of the cyclone separator using CFD techniques." Thesis, Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/17372.

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Claudet, Andre Aman. "Analysis of three dimensional measurement data and CAD models." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/17530.

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Gould, Christopher R. "Rapid analysis and design of CLL resonant power converters." Thesis, University of Sheffield, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.632841.

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Rampurawala, Abdul Moosa. "Aeroelastic analysis of aircraft with control surfaces using CFD." Thesis, University of Glasgow, 2005. http://theses.gla.ac.uk/5499/.

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For the simulation of control surface buzz accurate prediction of the shock location and the chock strength is essential and this is currently achieved using Euler and RANS based CFD analysis. To calculate the motion of the control surface only the flap rotation mode needs to be modelled. In the current work the CFD solver is coupled with a modal based FEM solver. The multi-level hierarchical blending transformation methodology is applied for the aeroelastic analyses of complex geometries. The methodology is used for the treatment of blended control surfaces and the effect of the blending on t

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Yang, Jiecheng. "DEM-CFD analysis of micromechanics for dry powder inhalers." Thesis, University of Birmingham, 2015. http://etheses.bham.ac.uk//id/eprint/6019/.

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Dry powder inhalers (DPIs) are widely used for the therapy of respiratory and pulmonary diseases. In this study, a coupled discrete element method and computational fluid dynamics (DEM-CFD) is employed to investigate the micromechanics of carrier-based DPIs. The effects of van der Waals forces and electrostatic forces on the mixing process, and the influences of air flow and particle-wall impact on the dispersion process are examined. For the mixing of carrier and active pharmaceutical ingredient (API) particles in a vibrating container, it is found that vibration conditions affect the mixing

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Guo, Yu. "A coupled DEM/CFD analysis of die filling process." Thesis, University of Birmingham, 2010. http://etheses.bham.ac.uk//id/eprint/674/.

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This thesis reports numerical analyses of powder flow, mixing and segregation behavior during die filling in a vacuum and in air using an Eulerian-Lagrangian model, which employs a Discrete Element Method (DEM) for the particles and Computational Fluid Dynamics (CFD) for the air with a two-way air-particle interaction coupling term. The effects of air and particle properties (size, density, size distribution, cohesion etc.) on powder flow are explored. The results are in a good agreement with experimental observations. Powder flow is characterized in terms of a dimensionless mass flow rate and

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Hariram, Adhikar Vishaykanth. "The use of CFD for heliostat wind load analysis." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/97048.

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Thesis (MEng)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: The capability of computational fluid dynamics (CFD), in particular the FLUENT ™ commercial software suite, to predict wind loadings on heliostats has been investigated. If CFD proves useful in this area then the overall development costs of heliostats and concentrating solar thermal power plants could be reduced. Due to the largest loading on the heliostat originating from wind loads, by using CFD to determine these loads it could be possible to ensure heliostats are not overdesigned. This thesis contains a first study within

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Paulick, Michael J. "IDAPS CAD-BASED STORE SEPARATION ANALYSIS OF DEPLOYABLE SURFACES." International Foundation for Telemetering, 2007. http://hdl.handle.net/10150/604508.

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ITC/USA 2007 Conference Proceedings / The Forty-Third Annual International Telemetering Conference and Technical Exhibition / October 22-25, 2007 / Riviera Hotel & Convention Center, Las Vegas, Nevada<br>The Image Data Automated Processing System (IDAPS), developed by the 96th Communications Group Test and Analysis Division at Eglin AFB, uses a CAD-based image matching technique to calculate a trajectory of a store separation event. The latest evolution of this system has been in production for several years and has proven to be both an accurate and a valuable tool for evaluating flight releas

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McCormick, Daniel John. "An Analysis of Using CFD in Conceptual Aircraft Design." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/33409.

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The evaluation of how Computational Fluid Dynamics (CFD) package may be incorporated into a conceptual design method is performed. The repeatability of the CFD solution as well as the accuracy of the calculated aerodynamic coefficients and pressure distributions was also evaluated on two different wing-body models. The overall run times of three different mesh densities was also evaluated to investigate if the mesh density could be reduced enough so that the computational stage of the CFD cycle may become affordable to use in the conceptual design stage. A farfield method was derived and us

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Kutrieb, Deborah M. "An analysis of CAD use in Wisconsin architectural offices." Online version, 2008. http://www.uwstout.edu/lib/thesis/2008/2008kutriebd.pdf.

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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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Berndt, Karsten, and Marko Ebermann. "Methodik zur funktionsorientierten Tolerierung mittels CAD-basierter Analysen." Universitätsbibliothek Chemnitz, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-171981.

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Teil 1 Karsten Berndt Die Festlegung von Toleranzen ist eine alltägliche Aufgabenstellung des Konstrukteurs. Dabei bedingt die Berechnung nichtlinearer Toleranzketten einen erheblichen Zeitaufwand, wodurch meist auf deren genaue Berechnung vezichtet wird und Toleranzen stattdessen auf Basis von Erfahrungswerten festgelegt werden. Die vorgestellte Methodik zeigt Wege, wie schnell und frühzeitig im Konstruktionsprozess belastbare Aussagen zu Toleranzen komplexer Mechanismen getroffen werden können. Dazu werden sogenannte Sensitivitätsanalysen in der CAD-Software "Creo Elements" durchgeführt und

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Zach, Jiří. "Obchodování s akciovými CFD kontrakty." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2014. http://www.nusl.cz/ntk/nusl-224713.

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The aim of this thesis is to design an investment strategy focused on tool called CFD. The first theoretical part contains basic information about financial derivates and explains basic principles of trading on stock market with contracts for difference. Chapter of the investment analysis explains the methods and rules used in trading. The practical part presents the results of my trading CFDs and evaluated my proposed strategy along with the benefits of work.

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LAI, B. Y., and 賴炳佑. "Vibration and Reduction Analysis fo a CLD Covered Beam." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/22791600359471252264.

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碩士<br>國立臺灣科技大學<br>機械工程系<br>92<br>This thesis presents the vibration and reduction analysis for partial constrained layer damping(CLD) treatment of beams. The equations of motion of beam with partial CLD treatment are derived by energy principle and equilibrium relations. This model, unlike the previous, used just two displacement functions：one is the in-plane placement and the other is the transverse displacement of beam. In the free vibration, the frequencies and the mode shapes in a sense of exactness are solved for various coverage ratios and different coverage positions. Experimental analy

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Chiang, Fei-Yi, and 江斐義. "Optimization and Vibration Reduction Analysis of Partial CLD Treatment on a Plate." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/vkeh3g.

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碩士<br>國立臺灣科技大學<br>機械工程系<br>94<br>This thesis presents the studies on optimization and vibration reduction analysis for the constrained layer damping (CLD) treatment on a plate. At first, the equations of motion of the plate with CLD are derived which were the foundation of the research. We analyze when the change of the area , viscoelastic material’s thickness, and constrained layer’s thickness of partial CLD, the influence of natural frequency, damping factor, and power spectrum. After the analysis on the effect of the three-layer’s parameter, we define the subject function which composed of

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