Academic literature on the topic 'Cellular convection'

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Journal articles on the topic "Cellular convection"

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Fuhrer, Oliver, and Christoph Schär. "Embedded Cellular Convection in Moist Flow past Topography." Journal of the Atmospheric Sciences 62, no. 8 (2005): 2810–28. http://dx.doi.org/10.1175/jas3512.1.

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Abstract Marginally unstable air masses impinging upon a mountain ridge may lead to the development of a nominally stratiform orographic cloud with shallow embedded convection. Rainfall amounts and distribution are then strongly influenced by the convective dynamics. In this study, the transition from purely stratiform orographic precipitation to flow regimes with embedded convection is systematically investigated. To this end, idealized cloud-resolving numerical simulations of moist flow past a two-dimensional mountain ridge are performed in a three-dimensional domain. A series of simulations
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Fiedler, Brian H. "Mesoscale cellular convection: is it convection?" Tellus A 37A, no. 2 (1985): 163–75. http://dx.doi.org/10.1111/j.1600-0870.1985.tb00278.x.

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Fiedler, Brian H. "Mesoscale cellular convection: is it convection?" Tellus A: Dynamic Meteorology and Oceanography 37, no. 2 (1985): 163–75. http://dx.doi.org/10.3402/tellusa.v37i2.11663.

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Scorer, R. S. "Atmospheric cellular convection." Nature 359, no. 6394 (1992): 370. http://dx.doi.org/10.1038/359370a0.

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Baker, R. David, and Gerald Schubert. "Atmospheric cellular convection." Nature 359, no. 6394 (1992): 370. http://dx.doi.org/10.1038/359370b0.

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Knightly, George H., and D. Sather. "Stability of cellular convection." Archive for Rational Mechanics and Analysis 97, no. 4 (1987): 271–97. http://dx.doi.org/10.1007/bf00280408.

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DELDEN, AARNOUT. "Comments on “Mesoscale cellular convection: is it convection?”." Tellus A 37A, no. 5 (1985): 487–88. http://dx.doi.org/10.1111/j.1600-0870.1985.tb00446.x.

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Van Delden, Aarnout. "Comments on “Mesoscale cellular convection: is it convection?”." Tellus A: Dynamic Meteorology and Oceanography 37, no. 5 (1985): 487–88. http://dx.doi.org/10.3402/tellusa.v37i5.11691.

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Santellanes, Sean R., George S. Young, David J. Stensrud, Matthew R. Kumjian, and Ying Pan. "Environmental Conditions Associated with Horizontal Convective Rolls, Cellular Convection, and No Organized Circulations." Monthly Weather Review 149, no. 5 (2021): 1305–16. http://dx.doi.org/10.1175/mwr-d-20-0207.1.

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AbstractTypical environmental conditions associated with horizontal convective rolls (HCRs) and cellular convection have been known for over 50 years. Yet our ability to predict whether HCRs, cellular convection, or no discernable organized (null) circulation will occur within a well-mixed convective boundary layer based upon easily observed environmental variables has been limited. Herein, a large database of 50 cases each of HCR, cellular convection, and null events is created that includes observations of mean boundary layer wind and wind shear, boundary layer depth; surface observations of
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Sun, Z. F., and K. T. Yu. "Rayleigh–Bénard–Marangoni Cellular Convection." Chemical Engineering Research and Design 84, no. 3 (2006): 185–91. http://dx.doi.org/10.1205/cherd.05057.

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Dissertations / Theses on the topic "Cellular convection"

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Chan, Wing-Le. "Radiative transfer and cellular convection in a model atmosphere." Thesis, Imperial College London, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243362.

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Dorari, Elaheh. "Modeling Dendritic Solidification under Melt Convection Using Lattice Boltzmann and Cellular Automaton Methods." University of Akron / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=akron1564494277351299.

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Hashemi, Mohammad. "Lattice Boltzmann Simulation of Natural Convection During Dendritic Growth." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1459444594.

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Nassar, Mohammad. "Simulation de la formation de films polymères par séchage de colloïdes aqueux." Thesis, Strasbourg, 2017. http://www.theses.fr/2017STRAE005/document.

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Le séchage des dispersions colloïdales a été et demeure très étudié en raison de son extrême complexité et de son utilisation dans de nombreuses applications. Dans cette thèse, nous avons développé une simulation, d'abord unidirectionnelle, basée sur le principe des automates cellulaires, qui traite la problématique du séchage horizontal et vertical. Ce travail permet de prédire, par calcul numérique, la distribution des particules et la position des fronts de séchage dans les dépôts de dispersions sous forme de films minces. Nos résultats ont montré que la pression existant dans le fluide est
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Orlacchio, Rosa. "Millimeter waves for biomedical electromagnetics : study of changes induced at the cellular level by pulsed electromagnetically-induced heating." Thesis, Rennes 1, 2019. http://www.theses.fr/2019REN1S077.

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La partie inférieure de la bande de les ondes millimétriques (OMM, c'est-à-dire 20–100 GHz) constitue une alternative attrayante pour le traitement thermique non invasif du mélanome. Le chauffage pulsé induit électromagnétiquement peut entraîner des dommages plus importants dans les cellules par rapport au chauffage continu traditionnel. Dans ce travail, nous étudions les modifications induites au niveau cellulaire dans les cellules de mélanome à la suite d'une exposition au chauffage induit par en onde continue (CW) et ou en régime modulé (PWM) avec avec la même élévation de température moyen
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Bengtsson, Lisa. "On the Convective-Scale Predictability of the Atmosphere." Doctoral thesis, Stockholms universitet, Meteorologiska institutionen (MISU), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-75195.

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A well-represented description of convection in weather and climate models is essential since convective clouds strongly influence the climate system. Convective processes interact with radiation, redistribute sensible and latent heat and momentum, and impact hydrological processes through precipitation. Depending on the models’ horizontal resolution, the representation of convection may look very different. However, the convective scales not resolved by the model are traditionally parameterized by an ensemble of non-interacting convective plumes within some area of uniform forcing, representi
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Nicolas, Xavier. "Simulation numérique et stabilité des écoulements de convection mixte en conduite rectangulaire chauffée par le bas." Phd thesis, Université Paul Sabatier - Toulouse III, 1997. http://tel.archives-ouvertes.fr/tel-00812211.

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Nous proposons une étude numérique bidimensionnelle des écoulements laminaires de convection mixte en conduite rectangulaire horizontale chauffée par le bas (encore appelés "écoulements de Poiseuille-Rayleigh-Bénard"). La méthode de résolution est de type volumes finis; elle est basée sur la méthode du Lagrangien augmenté. Nous présentons une revue bibliographique, historique et complète, des travaux effectués sur ce sujet. Nous rapportons de manière détaillée les résultats de trois thèses, analysant la stabilité linéaire de l'écoulement de Poiseuille et la stabilité faiblement non-linéaire de
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Leluel, Colette. "Modélisation numérique de la convection cellulaire en milieu stratifié." Toulouse 3, 1989. http://www.theses.fr/1989TOU30218.

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La stabilite de la convection cellulaire en milieu stratifie a ete etudiee dans l'approximation anelastique a l'aide d'un code modal. On montre que les interactions non lineaires developpent de la vorticite verticale a faible nombre de rayleigh. La vorticite verticale joue un role important dans les echanges d'energie et le developpement d'instabilites secondaires. Des solutions a trois modes instationnaires, periodiques ou quasi periodiques ont ete obtenues
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Roche, Philippe-Emmanuel. "Convection thermique turbulente en cellule de Rayleigh-Bénard cryogénique." Phd thesis, Université Joseph Fourier (Grenoble), 2001. http://tel.archives-ouvertes.fr/tel-00001894.

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Ce mémoire analyse le phénomène de convection turbulente dans diverses cellules de Rayleigh-Bénard remplies d'hélium gazeux et liquide. Une des spécificités de cette étude est sa mise en oeuvre en environnement cryogénique, afin de bénéficier de conditions expérimentales optimales, tant en terme de contrôle thermique qu'en terme de plage de variation des paramètres de contrôle : les Nombres de Prandtl (Pr) et de Rayleigh. Ce dernier est en particulier exploré sur plus de 11 décades. Trois contributions principales se dégagent de cette étude. Tout d'abord, la mise en évidence d'un effet de cond
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Simoneau, Jan-Patrice. "Etude de l'interaction entre un jet et la convection naturelle dans une cellule d'habitation." Lyon, INSA, 1989. http://www.theses.fr/1989ISAL0013.

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Ce travail a pour but une approche numérique de la convection mixte due à l(action d'un jet d'air anisotherme dans une cellule d'habitation. Après avoir rappelé les lois et les équations gouvernant la convection, dans notre cas, nous exposons le traitement numérique pas différences finies que nous avons appliqué à ces équations ainsi qu'une première validation e notre modèle numérique effectuée pour le régime de convection naturelle laminaire. Nous faisons ensuite une approche de la convection mixte bidimensionnelle laminaire et mettons en évidence différents types d'écoulement pour les cas d'
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Books on the topic "Cellular convection"

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Innocent, Mutabazi, Wesfreid J. E, and Guyon Etienne, eds. Dynamics of spatio-temporal cellular structures. Springer, 2005.

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Guyon, Etienne, Innocent Mutabazi, and Jose Eduardo Wesfreid. Dynamics of Spatio-Temporal Cellular Structures: Henri Bénard Centenary Review. Springer, 2014.

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Wesfreid, J. E., and S. Zaleski. Cellular Structures in Instabilities: Proceedings of the Meeting "Structures cellulaires dans les instabilites-periodicite, defauts, turbulence de ... at Gif-sur-Yvette, France, June 20-22, 1983. Springer, 2014.

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Dynamics of Spatio-Temporal Cellular Structures: Henri Bénard Centenary Review (Springer Tracts in Modern Physics). Springer, 2005.

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Ince, Can, and Alexandre Lima. Monitoring the microcirculation in the ICU. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199600830.003.0142.

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The microcirculation is the key physiological compartment of the cardiovascular system where oxygen is delivered by convection and diffusion to respiring parenchymal cells to support cellular, and thereby organ, function. The microcirculation consists of microvessels less than 100 µmin diameter consisting of arterioles, capillaries, and venules. The smallest vessels (<6 µm) are the capillaries where most oxygen leaves the circulation by passive diffusion to cells. The critical role of the microcirculation has long been recognized, although it has recently been possible to image its function
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Book chapters on the topic "Cellular convection"

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Schaffenberger, W., A. Hanslmeier, and M. Messerotti. "Cellular Automata Models for Convection." In Motions in the Solar Atmosphere. Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-015-9331-1_25.

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Ahlers, Guenter. "Experiments with Rayleigh-Bénard Convection." In Dynamics of Spatio-Temporal Cellular Structures. Springer New York, 2006. http://dx.doi.org/10.1007/978-0-387-25111-0_4.

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Busse, Friedrich H. "Bénard Convection and Geophysical Applications." In Dynamics of Spatio-Temporal Cellular Structures. Springer New York, 2006. http://dx.doi.org/10.1007/978-0-387-25111-0_6.

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Crommelin, Daan. "Cellular Automata for Clouds and Convection." In Emergence, Complexity and Computation. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-65558-1_20.

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Jamgotchian, H., R. Trivedi, and B. Billia. "Nonlinear Dynamics in Cellular Solidification in Presence of Defects." In Interactive Dynamics of Convection and Solidification. Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2809-4_18.

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Eckert, Kerstin, and André Thess. "Secondary Instabilities in Surface-Tension-Driven Bénard-Marangoni Convection." In Dynamics of Spatio-Temporal Cellular Structures. Springer New York, 2006. http://dx.doi.org/10.1007/978-0-387-25111-0_9.

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Prigent, Arnaud, Bérengère Dubrulle, Olivier Dauchot, and Innocent Mutabazi. "The Taylor-Couette Flow: The Hydrodynamic Twin of Rayleigh-Bénard Convection." In Dynamics of Spatio-Temporal Cellular Structures. Springer New York, 2006. http://dx.doi.org/10.1007/978-0-387-25111-0_13.

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Manneville, Paul. "Rayleigh-Bénard Convection: Thirty Years of Experimental, Theoretical, and Modeling Work." In Dynamics of Spatio-Temporal Cellular Structures. Springer New York, 2006. http://dx.doi.org/10.1007/978-0-387-25111-0_3.

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Pomeau, Yves. "Rayleigh-Bénard Convection as a Model of a Nonlinear System: A Personal View." In Dynamics of Spatio-Temporal Cellular Structures. Springer New York, 2006. http://dx.doi.org/10.1007/978-0-387-25111-0_5.

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Brown, Robert A., T. C. John Lee, and Kostas Tsiveriotis. "Nonlinear Dynamics near the Onset of Cellular Growth During Thin-Film Solidification of a Binary Alloy: On the Observability of Weakly Nonlinear States." In Interactive Dynamics of Convection and Solidification. Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2809-4_11.

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Conference papers on the topic "Cellular convection"

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TEWARI, S., RAJESH SHAH, and M. CHOPRA. "Thermosolutal convection during cellular arrayed growth of Pb-Sn alloys." In 31st Aerospace Sciences Meeting. American Institute of Aeronautics and Astronautics, 1993. http://dx.doi.org/10.2514/6.1993-262.

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Kumar, P., S. Chakraborty, K. Srinivasan, and P. Dutta. "Rayleigh-Benard Convection During Directional Solidification of a Binary Solution Cooled From the Top." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-33496.

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In this paper, we investigate the effects of laminar double-diffusive natural convection on directional solidification of binary fluids when cooled and solidified from the top. The study is performed using aqueous ammonium chloride solution as the model fluid. The experiments are performed with an initial concentration of ammonium chloride is less than the eutectic composition, leading to an aiding double-diffusive convection. In this case, solidification leads to the formation of a diffused matrix of dendritic crystals (mushy region) separating the pure solid and liquid regions. Below the two
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Masuoka, Takashi, Yasushi Kakimoto, Hirokazu Ito, and Koichi Inoue. "Natural Convection Heat Transfer in Vertical Fluid Layers of High Aspect Ratio." In ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajtec2011-44225.

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A two-dimensional numerical analysis is made on the effect of aspect ratio on flow and heat transfer characteristics of natural convection in a slender fluid layer enclosed between two vertical plates of different temperatures. It is shown that the boundary layer instability induces the hook-shaped flows and that its growth disrupts the large-scale circulatory flow into cellular flows of smaller scales, which in part include the renewed boundary layers. Then it is suggested that there exists a transition region where the average heat transfer coefficient increases with the increase of the heig
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Viskanta, R. "Overview of Radiative Transfer in Cellular Porous Materials." In ASME 2009 Heat Transfer Summer Conference collocated with the InterPACK09 and 3rd Energy Sustainability Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/ht2009-88648.

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Highly porous cellular materials capable of absorbing, emitting and scattering radiation are finding use at low and high temperatures in a range of traditional and modern technologies. The motivation for use of cellular materials is attributed to the high volumetric heat transfer rate (i.e., large surface area to volume ratio, high volumetric heat transfer coefficient), and large mixing rate due to the tortuosity of open cell foams. A brief overview of simulating heat transfer in cellular materials is presented and most important modeling parameters are identified, but the focus of the discuss
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Watanabe, Takamasa, and Hiroshi Kawamura. "Experiment of Solidification With Thermocapillary Convection in a Liquid Layer." In ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ht2007-32639.

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To produce high-quality materials, a large number of studies have been carried out for the solidification and melting process of metals and semiconductors in both terrestrial and space environments. The previous studies focused mainly upon the solidification and melting processes themselves. In the real system, however, one cannot neglect effects of convection in molten materials, such as natural and thermocapillary convections, upon the resultant quality of the materials. This study aims to investigate experimentally the effect of the thermocapillary convection upon the directional solidifica
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Hirasawa, Shigeki, Tsuyoshi Kawanami, and Katsuaki Shirai. "Numerical Simulation on Forced Convection Heat Transfer Performance and Pressure Drop of High Permeability Porous Media." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-65321.

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We studied the forced convection heat transfer performance and pressure drop of high permeability metal cellular porous media in air flow using a 3-dimensional thermofluid computation code. The temperature and velocity distributions in the air flow region, local heat transfer coefficient, and local heat flux on the surface of the porous media were numerically calculated for steady air flow by changing the parameters of the pore size and air velocity. The cellular porous media were modeled by pin array, cube geometry, and truncated octahedron geometry using thin wires. The diameter of the wires
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Seepersad, Carolyn Conner, Janet K. Allen, David L. McDowell, and Farrokh Mistree. "Multifunctional Topology Design of Cellular Material Structures." In ASME 2006 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/detc2006-99373.

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Prismatic cellular or honeycomb materials exhibit favorable properties for multifunctional applications such as ultra-light load bearing combined with active cooling. Since these properties are strongly dependent on the underlying cellular structure, design methods are needed for tailoring cellular topologies with customized multifunctional properties that may be unattainable with standard cell designs. Topology optimization methods are available for synthesizing the form of a cellular structure—including the size, shape, and connectivity of cell walls and the number, shape, and arrangement of
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Baish, James. "Effect of Vascular Convexity on Diffusive Delivery of Blood-Borne Substances in Normal and Tumor Tissues." In ASME 2013 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/sbc2013-14130.

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Blood-borne substances such as oxygen, nutrients, drugs and particles arrive at targeted tissues through a multi-step process that begins with convection along the blood vessels and then movement from the blood vessels to the surrounding tissues by convection through the cellular interstices or molecular diffusion. Interstitial convection may be important in the margins of tumors where highly permeable blood vessels encounter high transmural pressures, but otherwise, transport from the blood vessels to the tissues progresses primarily by diffusion.
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Pewekar, Mihir Mangesh, Pranit Pravin Sandye, and Kiran Chaudhari. "Investigation of Non-Pneumatic Tires Based on Helical Hexagonal Cellular Structure." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-87631.

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Non-pneumatic tires (NPTs) have drawn attention mainly due to low contact pressure and low rolling resistance due to use of hyper-elastic materials in their construction. In this paper, an attempt to innovate the conventional design of NPT with hexagonal honeycomb cellular structure is made by creating the boundary planar geometries of the tire, skew to each other at a certain angle. Adding to the functionality as a tire, this modified structure increases the performance of automobile components by rejection of heat through convection (forced) at the expense of engine power. The primary invest
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Jeong, Gi Ho, Byung Jin Ahn, Young Sik Seong, and Kui Soon Kim. "Numerical Analysis of Phase Change and Natural Convection Phenomena During Pipe Freezing Process." In ASME 2002 Pressure Vessels and Piping Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/pvp2002-1584.

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A numerical analysis is performed in this study to see the characteristics of the ice plug formation and the heat transfer during pipe freezing process. The unsteady three dimensional computer code which solves incompressible Navier-Stokes equations including energy equation has been developed in this study. The computed results for verification including phase interface and flow patterns showed good agreements with others. And additional pipe freezing experiments for verification showed that maximum flow rate for the complete plug formation is highly dependent on the pipe diameter and length
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