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Dissertations / Theses on the topic 'Media surface'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Daniel, Richard Crosson. "Ink-media interactions in ink-jet printing /." Thesis, Connect to this title online; UW restricted, 2004. http://hdl.handle.net/1773/9829.

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2

Clewett, James. "Emergent surface tension in boiling granular media." Thesis, University of Nottingham, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.604898.

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In this thesis we present findings from an experimental and numerical study of loosely confined, dry granular gases subject to vertical vibration. We found that the system phase separates into a high-density, liquid-like phase and a low-density gas-like phase. The phase separation was shown to occur at a critical driving amplitude but is independent of frequency. To introduce our work, we give an overview of phase separation in driven granular gases. Ofpatiicular interest are: a solid-liquid-like phase separation in tightly confined, dry granular mono layers and a liquid-gas-like phase separat

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3

BERGAMO, PAOLO. "Surface Wave Analysis in Laterally Varying Media." Doctoral thesis, Politecnico di Torino, 2012. http://hdl.handle.net/11583/2502664.

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This work studies the possibility of using surface wave analysis as a tool for a robust estimation of the S-wave velocity behaviour in laterally varying media. The surface wave method, in fact, can be effectively adopted for different purposes and at different scales, but I focused on the geo-engineering and geotechnical applications of surface wave analysis and also on the production of near-surface models for deep exploration: in both cases the aim is to retrieve the trend of the S-wave velocity in the first tens up to hundreds meters of depth of the subsoil. The surface wave method explo

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4

Yang, Fuzi. "Optically excited surface polaritons using strongly absorbing media." Thesis, University of Exeter, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.279743.

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5

Scott, Nicola Louise. "Stability studies of porous media including surface reactions." Thesis, Durham University, 2013. http://etheses.dur.ac.uk/9421/.

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We investigate the onset of thermal convection in a number of porous models, with a focus on the influence of a boundary reaction. The models that we consider are: the Darcy porous model; the Darcy model with inclusion of the Soret effect and the Brinkman model, all with an exothermic surface reaction on the lower boundary. Numerical results are presented for each of these models and we show that the Darcy and Brinkman models with a surface reaction are structurally stable. Finally we derive stability results for a vertical porous channel that is in thermal non-equilibrium. In Chapter 2 we inv

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6

Ruan, Youyi. "Surface wave propagation in 3-D anelastic media." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/28945.

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Lateral perturbations in anelasticity (Q) and wave speed together provide important constraints on thermal and chemical structures in the mantle. In present-day tomography studies of global wave speed and anelasticity, the significance of 3-D wave speed and 3-D Q structures on surface wave travel times and amplitudes has not been well understood. In this dissertation, the effects of lateral perturbations in anelasticity (Q) and wave speed on surface wave observables are quantified based upon wave propagation simulations in 3-D earth models using a Spectral Element Method. Comparison between p

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7

Page, Adam Freddie. "Surface plasmon emission and dynamics in active planar media." Thesis, Imperial College London, 2015. http://hdl.handle.net/10044/1/30760.

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By reducing the number of dimensions that light can propagate in from three to two, control over the properties of propagation can be achieved. The plasmonic modes of planar metal-dielectric heterostructures will confine light in one dimension, enhancing the electromagnetic fields within the structure. This thesis focuses on two particular aspects of active nanoplasmonics in planar systems, stopped light lasing and plasmons with gain in nonequilibrium graphene. For stopped-light lasing, a plasmonic waveguide mode is designed to have two points of zero group velocity in a narrow frequency range

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8

Berry, David Leonard. "Acoustic scattering by near-surface inhomogeneities in porous media." Thesis, Open University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.254021.

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9

Ladd, Jon J. "Development of surface chemistries and protein arrays for surface plasmon resonance sensing in complex media /." Thesis, Connect to this title online; UW restricted, 2008. http://hdl.handle.net/1773/9903.

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10

Kapetas, Leon. "Microbial controls on contaminant metal transport in porous media." Thesis, University of Edinburgh, 2011. http://hdl.handle.net/1842/5769.

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Metal contamination in groundwater aquifers poses risks to human health as well as other life forms. Previous laboratory experiments have demonstrated that bacteria found in geologic settings like aquifers are likely to adsorb metal contaminants and attenuate metal migration. However, as bacteria can also migrate through the groundwater aquifer a better understanding of the combined effect of these two processes is required. The aim of this laboratory study was to a) explore the affinity bacteria exhibit towards metals and porous media of varying composition, b) investigate the effect of miner

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11

Ross, Gillian J. "The surface modification of poly(vinylidene fluoride) by alkaline media." Thesis, University of Surrey, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301346.

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12

Kainourgiakis, Michael, Theodore Steriotis, Eustathios Kikkinides, Athanassios Stubos, and Sergey Vasenkov. "Effects of surface roughness on transport properties of porous media." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-196547.

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13

Kainourgiakis, Michael, Theodore Steriotis, Eustathios Kikkinides, Athanassios Stubos, and Sergey Vasenkov. "Effects of surface roughness on transport properties of porous media." Diffusion fundamentals 2 (2005) 93, S. 1-2, 2005. https://ul.qucosa.de/id/qucosa%3A14430.

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14

Powell, David Anthony, and davidanthonypowell@gmail com. "Modelling of Layered Surface AcousticWave Resonators for Liquid Media Sensing Applications." RMIT University. Electrical and Computer Engineering, 2006. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20070122.164018.

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In this thesis a model is developed to characterise the behaviour of layered SAW 2- port resonator sensors operating in liquid media. In the critical review of literature, it is found that methods based on the periodic Green's function combined with the COM model are best suited to this task. However, an important deficiency of this approach is the lack of a good model for electrodes buried within layered media. This deficiency is resolved in this thesis by the formulation of a periodic matrix eigen-operator, using a phase-shifted Fourier series representation. This model is then u

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15

Kocaoglu, Argun H. "A new method for modeling surface wave propagation in heterogeneous media." Diss., Georgia Institute of Technology, 1995. http://hdl.handle.net/1853/25716.

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16

Zaccherini, Rachele. "Surface waves attenuation in granular media through a small-scale Metabarrier." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017.

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The present thesis describes a small-scale experiment, carried out in the laboratory of the Swiss Federal Institute of Technology of Zurich (ETH). The research focuses on metamaterials, locally resonant structures able to affect the propagation of waves passing through them. The present thesis investigates an innovative method to attenuate Rayleigh waves through the insertion of a barrier of scaled resonators into the soil, capable of generating a bandgap in the dispersion relation. Waves, whose frequency fall within the bandgap, cannot propagate through the resonant structure. Each resonator

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17

Raychoudhury, Trishikhi. "Transport of surface-modified iron nanoparticles through model subsurface porous media." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=104765.

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AbstractThe overall objective of this research is to evaluate significant mechanisms for deposition of surface-modified NZVI in granular subsurface media during transport. Although surface-modified NZVI have been shown to transport more easily than bare NZVI, there is a lack of knowledge of how different parameters such NZVI particle concentration, NZVI size, aqueous-phase flow velocity, and sand particle size influence nanoparticle transport. To investigate the effects of these parameters on transport, a number of laboratory experiments were conducted with NZVI synthesized from ferrous sulfat

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18

Goodman, Daniel Hayim. "Aware surfaces : large-scale, surface-based sensing for new modes of data collection, analysis, and human interaction." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/98643.

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Thesis: S.M., Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 152-158).<br>This thesis describes the design and construction of pressure sensing matrices for capturing human location and activity data from large surfaces in a space such as the floors, walls, tabletops, countertops, and furniture. With the ability to operate either alone or connected to others in an assembly, each sensor module is 0.3m x 2m, contains 512 force sensitive res

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19

Wang, Gonghou. "Ionic stability of oxide particles in polar organic media /." *McMaster only, 1998.

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20

Richardson, David Jeremy. "Enhanced mass transport in liquid-saturated porous media due to surface shear." Thesis, Loughborough University, 1999. https://dspace.lboro.ac.uk/2134/27112.

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The principal aim of this work was the development of a novel conductivity probe for measuring solids concentrations in slurries. The relevance of the thesis to this probe is that it requires rapid transport of aqueous electrolyte through a porous disc to an internal conductivity cell.

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21

Spence, Stephen John. "Some studies of non-planar porphyrins and reproducible surface-enhancing Raman media." Thesis, Queen's University Belfast, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.390856.

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22

Lee, Young-Jin. "Study on the dispersion of surface treated titanium dioxide in various media." Case Western Reserve University School of Graduate Studies / OhioLINK, 1993. http://rave.ohiolink.edu/etdc/view?acc_num=case1060695240.

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23

Lange, Kathrin. "Surface forces mediated by self-assembled hierarchical polymer structures in aqueous media." Thesis, University of Bristol, 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.705476.

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24

Bucak, Seyda. "The concept of 'driving force' applied to vesicle formation and breakdown in aqueous media." Thesis, University of East Anglia, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323215.

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25

Moorthy, Kavitha. "EFFECT OF SURFACE ENERGY OF FIBERS ON COALESCENCE FILTRATION." University of Akron / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=akron1185554340.

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26

Farkas, Kata. "Mimicking virus removal and transport in aquifer media using surface-modified silica nanoparticles." Thesis, University of Canterbury. School of Biological Sciences, 2014. http://hdl.handle.net/10092/9349.

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Contamination of drinking water sources, such as groundwater, by pathogens (protozoa, bacteria and viruses) is of major concern globally. Due to their small size, mobility and high infectivity, enteric viruses have been a focus of groundwater research. However, the behaviour of enteric viruses in aquifer media is still poorly understood, which is partially attributable to the lack of reliable surrogates for these viruses. In the study reported in this thesis, a new type of surrogate was characterised and validated for its use in studying virus fate and transport in groundwater. The surrogates

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27

Sharma, Shachi Dayal Gurumayum. "Investigation of the surface interactions of polymer and surfactants in non-polar media." Thesis, University of Bristol, 2002. http://hdl.handle.net/1983/05b71826-61f9-4538-83c1-441df72cb452.

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28

Chen, Shih-Chou. "Experimental and analytical investigation of free surface transport in porous and regular media /." The Ohio State University, 1995. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487929745333417.

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29

Demir, Metin Aytekin. "Perturbation theory of electromagnetic scattering from layered media with rough interfaces." The Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=osu1174660001.

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30

Hall, David Scott. "An Electrochemical and Spectroscopic Investigation of Nickel Electrodes in Alkaline Media for Applications in Electro-Catalysis." Thesis, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/31627.

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Nickel-based catalysts in aqueous alkaline media are low-cost electrode materials for electrolytic hydrogen generation, a renewable method of producing fuel and industrial feedstock. However, further work is necessary to develop inexpensive electro-catalyst materials with high activity and long-term stability. This thesis employs spectroscopic and electrochemical methods to directly address specific research problems for the development of improved materials and devices with commercial or industrial value. The first chapter reviews the applications of nickel electrodes; the structures of nicke

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31

Dorier, Vincent. "Quantum theory of light in linear media : applications to quantum optics and quantum plasmonics." Thesis, Bourgogne Franche-Comté, 2020. http://www.theses.fr/2020UBFCK006.

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Nous développons une méthode de quantification du champ électromagnétique en interaction linéaire avec les milieux passifs d'une part, et les milieux actifs (plasmoniques) d'autre part. Cette méthode repose sur la construction d'une structure Hamiltonienne compatible avec les équations de Maxwell, puis sur un principe de correspondence et la définition d'un espace de Fock des états quantiques. Nous utilisons les résultats de la théorie quantique pour étudier la propagation de photons dans des environnements diéléctriques et l'émission de plasmons uniques<br>We develop a method of quantization

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32

Sultana, Sadequa. "Study of Toxicity of Nanoparticles in Biological Media." Thesis, Sorbonne Paris Cité, 2015. http://www.theses.fr/2015USPCD018/document.

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Gold nanoparticules (GNPs) are of great interest for several applications in nanomedicine ; espacially in imaging and sensing, drug delivery or photothermal therapy because of their unique physical and chemical properties. For all theses applications, a better understanding of the interaction of GNPs with biomolecules and their uptake into cells is of great importance. Thus the main objective of this thesis was to study the toxicity of GNPs in biological media based on their sizes, shapes and surface chemistries. Cytotoxicity studies on human cells were done in vitro in presence of six GNP sam

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33

Zachrisson, Mikael. "High Quality Shadows for Real-time Surface Visualization." Thesis, Linköpings universitet, Medie- och Informationsteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-133214.

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This thesis describes the implementation of a shadowing system able to produce hard shadows. Shadow mapping is the most common real-time shadowing algorithm but it suffers from severe aliasing artifacts and self-shadowing effects. Different advanced techniques based on Shadow Mapping are implemented in this thesis with the objective of creating accurate hard shadows. First, an implementation based on Cascaded Shadow Maps is presented. This technique improves the visual quality of shadow mapping by using multiple smaller shadow maps instead of a large one. The technique addresses the fact that

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34

Abbas, Farhat. "The effect of surface-solute interactions on the transport of solutes through porous media." Thesis, University of Newcastle Upon Tyne, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.324867.

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35

Deng, Yihuan. "Improvements to the performance of trickling filters by inclusion of alternative surface-active media." Thesis, Loughborough University, 2018. https://dspace.lboro.ac.uk/2134/35988.

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Water pollution has become a global issue with impacts in all countries but particularly those undergoing rapid urbanisation such as China. The review for this thesis established that in 2015 China had 3,910 urban treatment plants with daily treatment capacity of 167million cubic metres. This treatment capacity was able to serve more than 90% of the population in urban regions. Compared to the previous 20 years, these treatment facilities represented a major improvement. However, the thesis uses recent annual environmental reports to show that this level of treatment is still not enough to avo

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36

GHIMIRE, BIDUR. "HYDRAULIC ANALYSIS OF FREE-SURFACE FLOWS INTO HIGHLY PERMEABLE POROUS MEDIA AND ITS APPLICATIONS." 京都大学 (Kyoto University), 2009. http://hdl.handle.net/2433/85382.

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In this study, a comprehensive approach including mathematical, numerical and experimental study has been taken in order to develop new models for describing free surface flow behavior in porous media. The study suggested that modeling free-surface flow in porous media is possible using a single equation capable of showing proper transition between inertial and classical Darcian flow, based on the similarity distribution functions of depth and velocity. The developed integral model inherits both the flow regimes as depicted in the analysis. For both laminar and turbulent flows through porous m

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37

Emelyanenko, Artyom. "Measurements and interpretation of lateral electromagnetic waves on the surface of low conductivity media." Thesis, Griffith University, 2020. http://hdl.handle.net/10072/393637.

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Measurements of electromagnetic fields are used for a wide range of applications. Often such measurements provide a non-destructive and non-intrusive way of obtaining information about the internal structure and other properties of the medium. Observations may be conducted across a very broad frequency range. Depending on the application domain, the frequency bands may range from the UHF band in biomedical engineering to the ULF band in geophysics. This thesis reports on several experiments where the electric and magnetic fields were measured on the surface of different media for the purpose o

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38

Al, Minshid Alaa Hani Naser. "Surface chemistry of metal oxide nanoparticles in biological and environmental media of varying pH." Diss., University of Iowa, 2018. https://ir.uiowa.edu/etd/6359.

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Investigate the interaction of nanomaterials with biological systems, known as nano-bio interaction is of great interest for the assessment of the concern arising from nanomaterials progressive use. Such interaction determines nanomaterials potential effect on human and environment becomes more and more important to understand how they interact with living organisms and the environment. The novel physicochemical characteristics of nanomaterials, such as their small size, large surface area to volume ratio and surface energy, may initiate new toxicological effects due to nanomaterials ability t

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39

Rinehart, Aidan. "Numerical and experimental investigations of fluid-surface interaction." Licentiate thesis, KTH, Strömningsmekanik och Teknisk Akustik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-290658.

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Fluid-structure interactions play a central role in an overwhelming number of physical phenomena. All fluid dynamic students are familiar with the common assumption of a "smooth boundary". While this assumption often is enough to provide a high level understanding of the dynamics and physics at hand in practice this is not true. Much of the detail and the unique phenomena can be traced back to surface properties that deviate from this elementary assumption. In this work we investigate three problems all motivated by the existence of non-smooth surfaces. The first paper considers how inho

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40

Lenders, Cyrille. "Study of microbubbles mechanical behavior: application to the design of an actuated table for micromanipulation in liquid media." Doctoral thesis, Universite Libre de Bruxelles, 2010. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210089.

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The scope of this thesis is micromanipulation in liquid media. This scientific field aims at understanding the relevant phenomena existing during the manipulation in a liquid of microcomponents having a size between $1,micrometer$ and a few millimeters. This work focuses on the study of surface tension forces in immersed media, because they have favorable scaling effect. The main idea is to use gas bubbles as actuation mean in a liquid, and requires to study the mechanical properties of these bubbles. The originality of the approach is the combination of two effects: surface tension and gas co

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41

Bourgeous, Keith Norman. "Cloth media surface filtration : characterization of the performance of the needle felt and pile fabrics /." Connect to Digital dissertations. Restricted to UC campuses. Access is free to UC campus dissertations, 2002. http://uclibs.org/PID/11984.

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42

Liu, Guansheng, Hua Zhong, Yongbing Jiang, et al. "Effect of low-concentration rhamnolipid biosurfactant on P seudomonas aeruginosa transport in natural porous media." AMER GEOPHYSICAL UNION, 2017. http://hdl.handle.net/10150/623109.

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Enhanced transport of microbes in subsurface is a focus in bioaugmentation applications for remediation of groundwater. In this study, the effect of low-concentration monorhamnolipid biosurfactant on transport of Pseudomonas aeruginosa ATCC 9027 in natural porous media (silica sand and a sandy soil) with or without hexadecane as the nonaqueous phase liquids (NAPLs) was studied with miscible-displacement experiments using artificial groundwater as the background solution. Transport of two types of cells was investigated, glucose-grown and hexadecane-grown cells with lower and higher cell surfac

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43

Wilson, Glenn Andrew, and glenn wilson@griffith edu au. "Plane Wave Propagation Problems in Electrically Anisotropic and Inhomogeneous Media with Geophysical Applications." Griffith University. School of Microelectronic Engineering, 2003. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20030325.210206.

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Boundary value problems required for modelling plane wave propagation in electrically anisotropic and inhomogeneous media relevant to the surface impedance methods in electromagnetic geophysics are formally posed and treated. For a homogeneous TM-type wave propagating in a half space with both vertical and horizontal inhomogeneities where the TM-type wave is aligned with one of the elements of the conductivity tensor, it is shown using exact solutions that the shearing term in the homogeneous Helmholtz equation for inclined anisotropic media: [Equation 1], unequivocally vanishes and solutions

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44

Wilson, Glenn Andrew. "Plane Wave Propagation Problems in Electrically Anisotropic and Inhomogeneous Media with Geophysical Applications." Thesis, Griffith University, 2003. http://hdl.handle.net/10072/365776.

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Boundary value problems required for modelling plane wave propagation in electrically anisotropic and inhomogeneous media relevant to the surface impedance methods in electromagnetic geophysics are formally posed and treated. For a homogeneous TM-type wave propagating in a half space with both vertical and horizontal inhomogeneities where the TM-type wave is aligned with one of the elements of the conductivity tensor, it is shown using exact solutions that the shearing term in the homogeneous Helmholtz equation for inclined anisotropic media: [Equation 1], unequivocally vanishes and solutions

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45

LaPenta, Jason Michael. "Real-time 3-d localization using radar and passive surface acoustic wave transponders." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/41738.

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Thesis (S.M.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2007.<br>Includes bibliographical references (p. 141-150).<br>This thesis covers ongoing work into the design, fabrication, implementation, and characterization of novel passive transponders that allow range measurements at short range and at high update rates. Multiple RADAR measurement stations use phase-encoded chirps to selectively track individual transponders by triangulation of range and/or angle measurements. Nanofabrication processes are utilized to fabricate

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46

Brown, Emilie Sayward. "Bounded Surface." VCU Scholars Compass, 2008. http://scholarscompass.vcu.edu/etd/1331.

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The relationship between surface, perception, and structure has occupied my graduate studies. Locating, transforming, and transcending the surface requires play with perceptive abilities not only of vision, but of touch, hearing, and the other senses as well. How do the interactions of sense with the qualities of a surface determine our perception of the world? What role does the extension of the senses play in one's ability to perceive surface and structure? Using sense information gleaned from surfaces, the tectonics of our world are made visible. Might this relationship be played backwar

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47

Englund, Rickard. "Ultrasound Surface Extraction for Advanced Skin Rendering." Thesis, Linköpings universitet, Medie- och Informationsteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-98681.

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This report evaluates possibilities to combine volumetric ultrasound (us) data together with the recent work published on advanced skin rendering techniques. We focus mainly on how to filter us data and localize surfaces within us data. We also evaluate recent skin rendering techniques in order to have a good understanding of what is needed from the us for rendering realistic skin. us data is acquired using sonography and have a low signal-to-noise ratio by nature, this makes it harder to extract surfaces compared to other medical data acquisition methods such as ct and mr. This report present

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48

Zhai, Xinyuan. "Crack propagation in elastic media with anisotropic fracture toughness : experiments and numerical modeling." Electronic Thesis or Diss., Institut polytechnique de Paris, 2023. http://www.theses.fr/2023IPPAE010.

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La fabrication additive attire une attention croissante en raison de ses avantages en termes de flexibilité de modélisation et de facilité de conception de microstructures complexes. Nous avons constaté qu'en manipulant la stratégie d'impression, les échantillons imprimés par dépôt de fusion de polycarbonate peuvent présenter un comportement fortement anisotrope en termes de résistance à la rupture, tout en conservant des propriétés isotropes en termes d'élasticité.Le focus de cette thèse est d'explorer le comportement en matière de rupture dans des milieux élastiques isotropes présentant une

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49

Brown, Jacob Leslie. "Vapour-liquid equilibria within nanoporous media." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/277690.

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This thesis is dedicated to the exploration of fluid phases confined in nanoporous materials using Nuclear Magnetic Resonance (NMR) techniques, with an aim to benefit catalysis research. Included in this report are studies of pure fluids and their mixtures, confined in titania and silica catalyst supports. These investigations are conducted at industrially-relevant, high-temperature (≥ 180 °C) and high-pressure conditions (up to 13 bar), made possible by a pilot-scale chemical reactor unit, designed to operate inside the strong magnetic fields of an NMR spectrometer. NMR spectroscopy, relaxati

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50

Schaeffler, Norman W. "Heat transfer from a spherical surface by jet impingement: an experimental study." Thesis, Virginia Polytechnic Institute and State University, 1988. http://hdl.handle.net/10919/53183.

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Methods for the removal of heat from a sphere, via jet impingement by single and multiple jets was documented experimentally. Average heat transfer rates from a sphere maintained at constant temperature, by means of an internal electronic heater, and subjected to single or multiple jet impingements were obtained and related to the exit conditions of the impinging air jet(s) and to geometric parameters. The heat transfer rate was found to be insensitive to small changes in geometry. The heat transfer rate was found to increase with an increase in mass flow rate. The impingement of two jets was

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