Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 85 for “"Flow and heat transfer"”.
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Flow and Heat Transfer in Tubes with Obstacles
… of this research work is to enhance the understanding of heat transfer and pressure loss in heated tubes equipped with flow obstacles by experimentally investigating the axial and circumferential distributions of convective heat transfer in a heated tube, complemented by pressure loss and …
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Topology optimisation for fluid flow and heat transfer applications
… algorithms to the design of single material heat sinks and heat exchangers. We aim to determine the merits and drawbacks of each method, extend the most suitable method to consider multi-material structures and to subsequently apply this method to design heat recovery structures subject to …
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Fluid flow and heat transfer in transonic turbine cascades
The aerodynamic and thermodynamic performance of an aircraft gas turbine directly affects the fuel consumption of the engine and the life of the turbine components. Hence, it is important to be able to understand and predict the fluid flow and heat transfer in turbine blades to enable the …
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Analysis of flow and heat transfer inside different filter designs
… purpose is to theoretically investigate internal flow, heat and mass transfer inside different filter designs. The efficiency of filtering methods used to reduce/remove particles deposited in a liquid varies greatly depending on the type of par- ticles, the quality of filter media and filter …
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Modeling Two-Phase Flow and Heat Transfer in Polygonal Microchannels
… we study two problems to gain an improved understanding of two-phase flow and heat transfer in microfluidic devices. We also study a third problem on boundary layer flow out of theoretical interest. In the first problem, we study the heat and mass transfer in polygonal micro heat pipes under small …
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Flow and heat transfer characteristics of turbulent swirling impinging jets [thesis]
… rely on impinging jets to impart convective heat and mass transfer in processes ranging from the cooling of electronic devices and gas turbine blades to drying of paper and food products. Conventionally, non-swirling impinging jets have been employed, but some studies have shown that inducing …
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A Unified Model for Multi-Phase Flow and Heat Transfer in Wellbores
<p>Multiphase flow is a common occurrence in the chemical and petroleum industries. The objective of this study was to apply the principles of multiphase flow to the production of petroleum fluids. A unified model was developed to predict the pressure profiles in wellbores using models available in …
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A numerical study of flow and heat transfer in compact heat exchangers
… computational method for the calculations of flow and heat transfer in compact heat exchangers is developed in collaboration with the National Center for Supercomputing Applications. In this method, the unsteady Navier-Stokes and energy equations are solved. A linearly scalable performance of …
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Analysis of Flow and Heat Transfer in the U.S. EPR Heavy Reflector
… is to reduce the neutron flux escaping the core and thus increase the efficiency of the reactor while reducing the damage to the structures surrounding the core as well. The heavy reflector is heated due to absorption of the gamma radiation, and this heat is removed by the water flowing through …
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Steady and Transient Analysis of Flow and Heat Transfer in SPND Assembly
This thesis presents the analysis of flow and heat transfer for the SPND (Self-Powered Neutron Detector) system used within the nuclear reactor core in the U.S. Evolutionary Power Reactor developed by AREVA. The SPND system is composed of six individual detectors which are used for in-core …
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Numerical method for solving fluid flow and heat transfer equations by design optimization
A numerical procedure for solving fluid flow and heat transfer equations by design optimization is presented. The procedure uses an optimization program based on an exterior penalty function method to solve the partial differential equations. The intent of the investigation is to show that the …
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Flow and Heat Transfer in Microchannels 30 to 300 Microns in Hydraulic Diameter
Fluid flow and heat transfer in microchannels are very important in various fields, including miniature thermal systems, compact heat exchangers and electronics cooling. The purpose of this investigation is to contribute to this new research area through carefully designed and well controlled …
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Fluid flow and heat transfer in an annulus with an inner rotating cylinder
Thesis (Sc.D.) Massachusetts Institute of Technology. Dept. of Mechanical Engineering, 1956.
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Impact of Total Temperature Probe of Geometry on Sensor Flow and Heat Transfer
… engineering applications, such as the efficiency and performance of an engine. As such, understanding the accuracy of these temperature measurements is also important. One of the common ways in which temperature is measured is through the use of total temperature probes. Previous research both at …
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Analysis of vertical channel flow and heat transfer using the finite-element method
… the problem of numerically predicting the heat transfer rates between parallel surfaces of the type found in electronic equipment. This has been accomplished through a unique application of the finite-element method for transient or steady-state, two-dimensional mixed convection heat …
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Investigation of unsteady separated flow and heat transfer using direct and large eddy simulations
… presents a numerical analysis of the separated flow and convective heat transfer around a bluff rectangular plate. This geometrically simple “prototype” configuration exhibits all the important features of complex separated and reattaching flow and has the advantage of well defined upstream …
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