NDLI: Transition Process to Turbulent Flow in Porous Media

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Takatsu, Y. Masuoka, T.
Copyright Year	2005
Abstract	Turbulence in porous media has attracted much interest recently, and many turbulence models have been proposed [1-12]. However, the mathematical treatments in some turbulence models have been developed without reference to the unique structure of vortices in porous media. The further development of the turbulence model and the theoretical argument in the transition flow regime need the experimental verification of the microscopic flow field in porous media, but the geometric complexity of porous media brings about technical difficulties of the measurement and the visualization. Therefore, we adopt the flow through a bank of cylinders in a narrow gap as a model for the flow through porous media, and perform the PIV (Particle Image Velocimetry) and LIF (Laser Induced Fluorescence) techniques to examine the microscopic flow field in porous media. We have confirmed that the solid matrix in porous media plays an important role in the vortex diffusion. The large vorticity at the throat produces such vortex as the swirl flow. On the other hand, the obstruction due to the solid matrix forces such large vortex as a Ka´rma´n vortex to be dissipative. Furthermore, the present experimental results are in agreement with our model [2] for the production and dissipation of turbulence.
Sponsorship	Heat Transfer Division
Starting Page	573
Ending Page	578
Page Count	6
File Format	PDF
ISBN	0791842223
DOI	10.1115/IMECE2005-80690
e-ISBN	0791837696
Volume Number	Heat Transfer, Part B
Conference Proceedings	ASME 2005 International Mechanical Engineering Congress and Exposition
Language	English
Publisher Date	2005-11-05
Publisher Place	Orlando, Florida, USA
Access Restriction	Subscribed
Subject Keyword	Visualization Turbulence Energy dissipation Lasers Porous materials Vortices Particulate matter Vorticity Fluorescence Flow (dynamics) Diffusion (physics) Cylinders
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Libarray of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Enhancement of Turbulent Mixing by Embedded Longitudinal Vorticity: A Numerical Study and Experimental Comparison

Particle Diagnostics and Turbulence Measurements in a Confined Isothermal Liquid Spray

Turbulent Flow Structure in a Cylinder-on-Cone Cyclone

LES Sub-Grid Diffusion for Lagrangian Particles

A General Macroscopic Model for Turbulent Flow in Porous Media

Turbulent Mixing Characteristics in the Converging Region of Five-Parallel Jets

Measurement of Turbulent Mass Mixing Caused by a Particle Wake

Numerical Simulation for Free Turbulent Reacting Flow by Particle Method

Effect of Selective Modification of Turbulence on Two-Equation Models for Particle-Laden Turbulent Flows

Transition Process to Turbulent Flow in Porous Media

Similar Documents

Enhancement of Turbulent Mixing by Embedded Longitudinal Vorticity: A Numerical Study and Experimental Comparison

Particle Diagnostics and Turbulence Measurements in a Confined Isothermal Liquid Spray

Turbulent Flow Structure in a Cylinder-on-Cone Cyclone

LES Sub-Grid Diffusion for Lagrangian Particles

A General Macroscopic Model for Turbulent Flow in Porous Media

Turbulent Mixing Characteristics in the Converging Region of Five-Parallel Jets

Measurement of Turbulent Mass Mixing Caused by a Particle Wake

Numerical Simulation for Free Turbulent Reacting Flow by Particle Method

Effect of Selective Modification of Turbulence on Two-Equation Models for Particle-Laden Turbulent Flows

Transition Process to Turbulent Flow in Porous Media