Ming / Peng / Gong Pollutant Dispersion in Built Environment

1. Auflage 2017
ISBN: 978-981-10-3821-1
Verlag: Springer Nature Singapore
Format: PDF
Kopierschutz: 1 - PDF Watermark

E-Book, Englisch, 134 Seiten

This book discusses energy transfer, fluid flow and pollution in built environments. It provides a comprehensive overview of the highly detailed fundamental theories as well as the technologies used and the application of heat and mass transfer and fluid flow in built environments, with a focus on the mathematical models and computational and experimental methods. It is a valuable resource for researchers in the fields of buildings and environment, heat transfer and global warming.

Autoren/Hrsg.

Ming, Tingzhen

Peng, Chong

Gong, Tingrui

Li, Zhengtong

Inhaltsverzeichnis

1;Preface;5
2;Contents;7
3;1 Introduction;9
3.1;1.1 Pollutant Dispersion and Haze in Built Environment;9
3.2;1.2 Literature Review;10
3.2.1;1.2.1 Experimental Methods and Results;10
3.2.2;1.2.2 Numerical Methods and Results;13
3.3;1.3 Contents of This Book;19
3.4;References;19
4;2 Heat Transfer and Pollutant Dispersion in Street Canyons;25
4.1;2.1 Introduction;25
4.2;2.2 The Behavior of Pollutant Dispersion;26
4.3;2.3 Mathematical Model;29
4.4;2.4 Meshing Skills;35
4.5;2.5 Computational Method;35
4.6;2.6 Verification;36
4.7;2.7 Results and Discussion;37
4.7.1;2.7.1 Comparison of 2D Flow Characteristics;37
4.7.2;2.7.2 Comparison of 3D Flow Characteristics;54
4.8;2.8 Conclusions;61
4.9;References;62
5;3 Thermal Comfort and Pollutant Transport in Outdoor Street Buildings;65
5.1;3.1 Introduction;65
5.2;3.2 The Description of Model;66
5.2.1;3.2.1 The Physical Model;66
5.2.2;3.2.2 Mathematical Model and Numerical Method;67
5.2.3;3.2.3 Boundary Conditions;69
5.2.4;3.2.4 Simulation Assessment;69
5.3;3.3 Block Dimension;71
5.3.1;3.3.1 The Wind Thermal Working Conditions in Summer;71
5.3.2;3.3.2 The Wind Thermal Working Conditions in Winter;75
5.4;3.4 Conclusions;83
5.5;References;83
6;4 Filed Synergy Analysis on Pollutant Dispersion in Built Environment;85
6.1;4.1 Introduction;85
6.2;4.2 Field Synergy Principle of Mass Transfer;87
6.3;4.3 Physical and Mathematical Model;89
6.3.1;4.3.1 Physical Model;89
6.3.2;4.3.2 Mathematical Model;90
6.3.3;4.3.3 Calculation of Solar Radiation;92
6.3.4;4.3.4 Boundary Conditions;93
6.3.5;4.3.5 Meshing Skills;95
6.3.6;4.3.6 The Numerical and Computational Model;95
6.4;4.4 Results and Discussions;96
6.4.1;4.4.1 2D Model Analysis;96
6.4.1.1;4.4.1.1 Characteristics of the Flow Field for Various Street Widths in 2D Model;96
6.4.1.2;4.4.1.2 Analysis of the Mass Field Synergy for Various ACV in 2D Model;100
6.4.1.3;4.4.1.3 Analysis of the Mass Field Synergy for Various Street Widths in 2D Model;102
6.4.1.4;4.4.1.4 Further Explain the Mass Field Synergy Phenomenon in 2D Model;104
6.4.2;4.4.2 3D Model Analysis;105
6.4.2.1;4.4.2.1 Characteristics of the Flow Field for Various ACV in y = 12B Plane;106
6.4.2.2;4.4.2.2 Characteristics of the Flow Field for Various ACV in z = 2B Plane;112
6.4.2.3;4.4.2.3 Analysis of the Mass Field Synergy for Various ACV in 3D Model;114
6.5;4.5 Conclusions;116
6.6;References;116
7;5 A Solar Chimney with an Inverted U-Type Cooling Tower to Mitigate Urban Air Pollution;120
7.1;5.1 Introduction;120
7.2;5.2 Model Description;121
7.2.1;5.2.1 System Mechanism;121
7.2.2;5.2.2 Geometric Model;122
7.2.3;5.2.3 Mathematical Model;123
7.2.4;5.2.4 Boundary Conditions;125
7.2.5;5.2.5 Numerical Method;126
7.3;5.3 Results and Analysis;127
7.4;5.4 Conclusion;131
7.5;References;132
8;Index;134