Author: Zhuo Chen
Publisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages :
Book Description
Study of passive dispersion of a neutral scalar in turbulentflows is highly important due to its numerous applications in the areas of turbulent flow visualization, turbulent heat transfer and transport of pollutants and other substances in the environment. Over the past few decades, many analytical, numerical, and experimental studies have been conducted on this topic to obtain a better understanding of the physical process. In the present work, Large Eddy Simulations (LES) of scalar dispersion in turbulent flow over smooth and rough channels is conducted to contribute to the further understanding of the relation between the turbulent velocity field and the concentration field. The LES results from the present work showed good agreement with a recently com-pleted experimental study(Rahman and Webster [2005]). An in-depth comparison of in-stantaneous concentration and velocity fields revealed thecorrelation between scalar dis-persion and coherent structures of the turbulent flow. Also, a three dimensional visual-ization of concentration iso-surfaces at different instants provided a good picture of the concentration structures transported as a result of hairpin vortices of turbulent flow, which is quite difficult to accomplish using experimental studies.
Scalar Dispersion in Turbulent Open Channel Flows Over Smooth and Rough Beds
Author: Zhuo Chen
Publisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages :
Book Description
Study of passive dispersion of a neutral scalar in turbulentflows is highly important due to its numerous applications in the areas of turbulent flow visualization, turbulent heat transfer and transport of pollutants and other substances in the environment. Over the past few decades, many analytical, numerical, and experimental studies have been conducted on this topic to obtain a better understanding of the physical process. In the present work, Large Eddy Simulations (LES) of scalar dispersion in turbulent flow over smooth and rough channels is conducted to contribute to the further understanding of the relation between the turbulent velocity field and the concentration field. The LES results from the present work showed good agreement with a recently com-pleted experimental study(Rahman and Webster [2005]). An in-depth comparison of in-stantaneous concentration and velocity fields revealed thecorrelation between scalar dis-persion and coherent structures of the turbulent flow. Also, a three dimensional visual-ization of concentration iso-surfaces at different instants provided a good picture of the concentration structures transported as a result of hairpin vortices of turbulent flow, which is quite difficult to accomplish using experimental studies.
Publisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages :
Book Description
Study of passive dispersion of a neutral scalar in turbulentflows is highly important due to its numerous applications in the areas of turbulent flow visualization, turbulent heat transfer and transport of pollutants and other substances in the environment. Over the past few decades, many analytical, numerical, and experimental studies have been conducted on this topic to obtain a better understanding of the physical process. In the present work, Large Eddy Simulations (LES) of scalar dispersion in turbulent flow over smooth and rough channels is conducted to contribute to the further understanding of the relation between the turbulent velocity field and the concentration field. The LES results from the present work showed good agreement with a recently com-pleted experimental study(Rahman and Webster [2005]). An in-depth comparison of in-stantaneous concentration and velocity fields revealed thecorrelation between scalar dis-persion and coherent structures of the turbulent flow. Also, a three dimensional visual-ization of concentration iso-surfaces at different instants provided a good picture of the concentration structures transported as a result of hairpin vortices of turbulent flow, which is quite difficult to accomplish using experimental studies.
Informatics, Networking and Intelligent Computing
Author: Jiaxing Zhang
Publisher: CRC Press
ISBN: 1138026743
Category : Computers
Languages : en
Pages : 2590
Book Description
This proceedings volume contains selected papers presented at the 2014 International Conference on Informatics, Networking and Intelligent Computing, held in Shenzhen, China. Contributions cover the latest developments and advances in the field of Informatics, Networking and Intelligent Computing.
Publisher: CRC Press
ISBN: 1138026743
Category : Computers
Languages : en
Pages : 2590
Book Description
This proceedings volume contains selected papers presented at the 2014 International Conference on Informatics, Networking and Intelligent Computing, held in Shenzhen, China. Contributions cover the latest developments and advances in the field of Informatics, Networking and Intelligent Computing.
Scalar Dispersion in Turbulent Channel Flow
Author: Robert A. Lavertu
Publisher:
ISBN:
Category :
Languages : en
Pages : 218
Book Description
"Experimental results of scalar dispersion from a concentrated source in an inhomogeneous turbulent flow field are presented in this thesis." --
Publisher:
ISBN:
Category :
Languages : en
Pages : 218
Book Description
"Experimental results of scalar dispersion from a concentrated source in an inhomogeneous turbulent flow field are presented in this thesis." --
The Relation of Turbulence to Diffusion in Open-channel Flows
Author: Thomas N. Keefer
Publisher:
ISBN:
Category : Channels (Hydraulic engineering)
Languages : en
Pages : 162
Book Description
Publisher:
ISBN:
Category : Channels (Hydraulic engineering)
Languages : en
Pages : 162
Book Description
The Influence of Some Split-bed Roughness Combinations on Turbulent Open-channel Flow
Author: Deane M. Manbeck
Publisher:
ISBN:
Category :
Languages : en
Pages : 440
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 440
Book Description
Turbulence in Open Channel Flows
Author: Hiroji Nakagawa
Publisher: Routledge
ISBN: 1351406604
Category : Technology & Engineering
Languages : en
Pages : 246
Book Description
A review of open channel turbulence, focusing especially on certain features stemming from the presence of the free surface and the bed of a river. Part one presents the statistical theory of turbulence; Part two addresses the coherent structures in open-channel flows and boundary layers.
Publisher: Routledge
ISBN: 1351406604
Category : Technology & Engineering
Languages : en
Pages : 246
Book Description
A review of open channel turbulence, focusing especially on certain features stemming from the presence of the free surface and the bed of a river. Part one presents the statistical theory of turbulence; Part two addresses the coherent structures in open-channel flows and boundary layers.
Scalar Dispersion in High Reynolds Number Turbulent Boundary Layers
Author: Meredith M. Metzger
Publisher:
ISBN:
Category : Dispersion
Languages : en
Pages : 486
Book Description
Publisher:
ISBN:
Category : Dispersion
Languages : en
Pages : 486
Book Description
Dispersion in Open Channel Flow
Author: Nobuhiro Yotsukura
Publisher:
ISBN:
Category : Channels (Hydraulic engineering).
Languages : en
Pages : 46
Book Description
Publisher:
ISBN:
Category : Channels (Hydraulic engineering).
Languages : en
Pages : 46
Book Description
Turbulent Diffusion and Dispersion in Open Channel Flow
Author: Yugoslav Association for Hydraulic Research
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Boundary Layer Flows
Author: Vallampati Ramachandra Prasad
Publisher: BoD – Books on Demand
ISBN: 1839681853
Category : Mathematics
Languages : en
Pages : 236
Book Description
Written by experts in the field, this book, "Boundary Layer Flows - Theory, Applications, and Numerical Methods" provides readers with the opportunity to explore its theoretical and experimental studies and their importance to the nonlinear theory of boundary layer flows, the theory of heat and mass transfer, and the dynamics of fluid. With the theory's importance for a wide variety of applications, applied mathematicians, scientists, and engineers - especially those in fluid dynamics - along with engineers of aeronautics, will undoubtedly welcome this authoritative, up-to-date book.
Publisher: BoD – Books on Demand
ISBN: 1839681853
Category : Mathematics
Languages : en
Pages : 236
Book Description
Written by experts in the field, this book, "Boundary Layer Flows - Theory, Applications, and Numerical Methods" provides readers with the opportunity to explore its theoretical and experimental studies and their importance to the nonlinear theory of boundary layer flows, the theory of heat and mass transfer, and the dynamics of fluid. With the theory's importance for a wide variety of applications, applied mathematicians, scientists, and engineers - especially those in fluid dynamics - along with engineers of aeronautics, will undoubtedly welcome this authoritative, up-to-date book.