LEADER 05260nam 2200625 450 001 9910829906103321 005 20230721004005.0 010 $a1-282-01060-3 010 $a9786612010606 010 $a3-527-62140-7 010 $a3-527-62141-5 035 $a(CKB)1000000000579347 035 $a(EBL)481300 035 $a(SSID)ssj0000291106 035 $a(PQKBManifestationID)11232782 035 $a(PQKBTitleCode)TC0000291106 035 $a(PQKBWorkID)10248114 035 $a(PQKB)10380009 035 $a(MiAaPQ)EBC481300 035 $a(OCoLC)214281421 035 $a(EXLCZ)991000000000579347 100 $a20160816h20082008 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 00$aCellular and porous materials $ethermal properties simulation and prediction /$fedited by Andreas O?chsner, Graeme E. Murch and Marcelo J. S. de Lemos 210 1$aWeinheim, [Germany] :$cWiley-VCH Verlag GmbH & Co. KGaA,$d2008. 210 4$d©2008 215 $a1 online resource (442 p.) 300 $aDescription based upon print version of record. 311 $a3-527-31938-7 320 $aIncludes bibliographical references at the end of each chapters and index. 327 $aCellular and Porous Materials Thermal Properties Simulation and Prediction; Contents; Preface; List of Contributors; 1 Interfacial Heat Transport in Highly Permeable Media: A Finite Volume Approach; 1.1 Introduction; 1.2 Governing Equations; 1.2.1 Microscopic Transport Equations; 1.2.2 Decomposition of Flow Variables in Space and Time; 1.2.3 Macroscopic Flow and Energy Equations; 1.2.4 Macroscopic Two-Energy Equation Modeling; 1.2.5 Interfacial Heat Transfer Coefficient; 1.3 Numerical Determination of hi; 1.3.1 Physical Model; 1.3.2 Periodic Flow; 1.3.3 Film Coefficient hi 327 $a1.4 Results and Discussion1.4.1 Array of Square Rods; 1.4.2 Array of Elliptic Rods; 1.4.3 Correlations for Laminar and Turbulent Flows; 1.5 Conclusions; References; 2 Effective Thermal Properties of Hollow-Sphere Structures: A Finite Element Approach; 2.1 Introduction; 2.1.1 Finite Element Method and Heat Transfer Problems; 2.1.2 Hollow-Sphere Structures in the Context of Cellular Metals; 2.2 Finite Element Method; 2.2.1 Basics of Heat Transfer; 2.2.2 Weighted Residual Method; 2.2.3 Discretization and Principal Finite Element Equation; 2.2.4 Four-Node Planar Bilinear Quadrilateral (Quad4) 327 $a2.2.4.1 General Rectangular Quad4 Element2.2.4.2 Postprocessing; 2.2.5 Nonlinearities; 2.3 Modelling of Hollow-Sphere Structures; 2.3.1 Geometry, Mesh and Boundary Conditions; 2.3.2 Material Properties; 2.4 Determination of the Effective Thermal Conductivities; 2.4.1 Influence of the Morphology and Joining Technique; 2.4.2 Influence of the Topology; 2.4.3 Temperature-Dependent Material Properties; 2.4.3.1 Low Temperature Gradient; 2.4.3.2 High Temperature Gradient; 2.4.4 Application Example: Sandwich Structure; 2.5 Conclusions; References 327 $a3 Thermal Properties of Composite Materials and Porous Media: Lattice-Based Monte Carlo Approaches3.1 Introduction; 3.2 Monte Carlo Methods of Calculation of the Effective Thermal Conductivity; 3.2.1 The Einstein Equation; 3.2.2 Fick's First Law (Fourier Equation); 3.3 Monte Carlo Calculations of the Effective Thermal Conductivity; 3.3.1 Effective Diffusion in Two-Component Composites/Porous Media; 3.3.2 Effective Diffusion in Three-Component Composites; 3.4 Determination of Temperature Profiles; References; 4 Fluid Dynamics in Porous Media: A Boundary Element Approach; 4.1 Introduction 327 $a4.1.1 Transport Phenomena in Porous Media4.1.2 Boundary Element Method for Fluid Dynamics in Porous Media; 4.2 Governing Equations; 4.3 Boundary Element Method; 4.3.1 Velocity-Vorticity Formulation; 4.3.2 Boundary Domain Integral Equations; 4.3.3 Discretized Boundary Domain Integral Equations; 4.3.4 Solution Procedure; 4.4 Numerical Examples; 4.4.1 Double-Diffusive Natural Convection in Vertical Cavity; 4.4.2 Double-Diffusive Natural Convection in a Horizontal Porous Layer; 4.5 Conclusion; References; 5 Analytical Methods for Heat Conduction in Composites and Porous Media; 5.1 Introduction 327 $a5.2 Mathematical Models for Heat Conduction 330 $aProviding the reader with a solid understanding of the fundamentals as well as an awareness of recent advances in properties and applications of cellular and porous materials, this handbook and ready reference covers all important analytical and numerical methods for characterizing and predicting thermal properties. In so doing it directly addresses the special characteristics of foam-like and hole-riddled materials, combining theoretical and experimental aspects for characterization purposes. 606 $aPorous materials$xThermal properties 615 0$aPorous materials$xThermal properties. 676 $a536.23 676 $a536/.23 702 $aO?chsner$b Andreas 702 $aMurch$b G. E. 702 $aLemos$b Marcelo J. S. de 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910829906103321 996 $aCellular and porous materials$94094921 997 $aUNINA LEADER 03935nam 22005175 450 001 9910367575703321 005 20191022022751.0 010 $a9783486754407 010 $a3486754408 024 7 $a10.1515/9783486754407 035 $a(CKB)4100000009194546 035 $a(DE-B1597)223724 035 $a(OCoLC)1114768871 035 $a(DE-B1597)9783486754407 035 $a(MiAaPQ)EBC7015423 035 $a(Au-PeEL)EBL7015423 035 $a(OCoLC)1334104569 035 $a(oapen)https://directory.doabooks.org/handle/20.500.12854/45974 035 $a(Perlego)3290764 035 $a(oapen)doab45974 035 $a(EXLCZ)994100000009194546 100 $a20191022d2019 fg 101 0 $ager 135 $aur||||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 14$aDer ein- und mehrphasige Wechselstrom $eEinführung in das Studium der Transformatoren und Wechselstrommaschinen /$fR. Wotruba 205 $aReprint 2019 210 $cDe Gruyter$d1927 210 1$aBerlin ;$aBoston : $cOldenbourg Wissenschaftsverlag, $d[2019] 210 4$d©1927 215 $a1 online resource (86 p.) 311 08$a9783486754414 311 08$a3486754416 327 $tFrontmatter -- $tVorwort -- $tInhaltsverzeichnis -- $tI. Kapitel. Einleitung: Das Wesen der Formel E=iR+L(di/dt). Der Selbstinduktionskoeffizient L, der Koeffizient der gegenseitigen Induktion R, der Kupplungsfaktor x, die Kondensatoren -- $tII. Kapitel Erzeugung des Wechselstroms. Über das Messen von Wechselstromgrößen. Wechselstrommeßinstrumente. Konstruktive Bestimmung des Effektivwertes. Methoden zur Aufnahme von Wechselstromgrößen. Zusammensetzen und Analyse von Wechselstromgrößen. Darstellung der Wechselstromgrößen durch Vektoren, komplexe Zahlen und die topographische Methode -- $tIII. Kapitel. Wirk- und induktiver Widerstand im Wechselstromkreis, der Kondensator im Wechselstromkreis, Induktiver. Widerstand und Kapazität in Nebeneinanderschaltung und Stromresonanz, induktiver Widerstand und Kapazität in Hintereinanderschaltung und Spannungsresonanz, verschiedene Schaltungen -- $tIV. Kapitel. Einige Messungen: Messung von Selbstinduktionskoeffizienten, Selbstinduktionskoeffizienten eisenhaltiger Stromkreise, Messung von Koeffizienten der gegenseitigen Induktion. Kapazitäten. Herstellung von 90° Phasenverschiebung, die Drei-Amperemeter-Methode, die Drei-Voltmeter- Methode -- $tV. Kapitel. Erzeugung des Dreiphasenstromes. Die Stern- und die Dreieckschaltung. Die Leistung des Dreiphasenstromes. Bestimmung der Leistung bei ungleicher Belastung. Die Schaltungen zur Leistungsmessung. - Anwendung der topographischen Methode zur Bestimmung der Leistung und des Spannungsabfalles. Querschnittsberechnung einer Dreiphasenleitung -- $tVI. Kapitel. Das vom Dreiphasenstrom erzeugte Drehfeld. Die mehrpoligen Drehfelder. Grundsätzliche Wirkungsweise des Drehstrommotors. Das Moment des Drehstrommotors. Der Zweiphasenstrom und seine Verkettungen. Das vom Zweiphasenstrom erzeugte Drehfeld -- $tBackmatter 330 $aTo celebrate the 270th anniversary of the De Gruyter publishing house, the company is providing permanent open access to 270 selected treasures from the De Gruyter Book Archive. Titles will be made available to anyone, anywhere at any time that might be interested. The DGBA project seeks to digitize the entire backlist of titles published since 1749 to ensure that future generations have digital access to the high-quality primary sources that De Gruyter has published over the centuries. 606 $aTechnology & Engineering / Engineering (General)$2bisacsh 615 7$aTechnology & Engineering / Engineering (General). 700 $aWotruba$b R., $0981027 801 0$bDE-B1597 801 1$bDE-B1597 906 $aBOOK 912 $a9910367575703321 996 $aDer ein- und mehrphasige Wechselstrom$92238935 997 $aUNINA