Skip to Main Content
 

Global Search Box

 
 
 
 

Files

File List


ucin1132255225.pdf (2.15 MB)

ETD Abstract Container

Abstract Header

EXPERIMENTAL CHARACTERIZING OF VORTEX STRUCTURE IN SINUSOIDAL WAVY CHANNEL AND A CASE STUDY FOR FUEL CELL APPLICATIONS

VYAS, SAURABH
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1132255225

Abstract Details

2005, MS, University of Cincinnati, Engineering : Mechanical Engineering.
In the present work, an experimental study is performed on sinusoidal wavy channels and a case study for fuel cell applications. Fluid mixing is perhaps an extremely way to enhance the heat and mass transfer in channel and duct flows. A wavy flow channel is one such device that provides core flow mixing by inducing span-wise and stream-wise vortex generation, depending upon the geometry, and promotes the heat and mass transfer enhancement. These flow patterns and swirl or vortex structure are quite complex and not well understood.Fluid recirculation and its structure in low Reynolds number flows in sinusoidal wavy-plate channel are characterized by flow visualization and laser doppler velocimetry (LDV). The flow channel geometry is effectively two-dimensional (width>>plate spacing) and is described by its waviness aspect ratio γ = (2x amplitude/ pitch) and inter-plate spacing ratio ε = (spacing/2x amplitude).With increasing flow rates, wall-curvature-induced effects manifest in fluid separation downstream of the wavy-surface peak, its reattachment upstream of the subsequent peak, and the consequent encapsulation of lateral recirculating cells in the channel-wall concavities. These trough region vortices tend to grow spatially and envelop much of the core flow region as the flow rate and/or plate spacing ε increases.
Dr. Raj Manglik (Advisor)
118 p.
Engineering, Mechanical
lateral vortices; corrugated-plate channels; flow visualization; laser doppler velocimetry (LDV); laminar flow

Recommended Citations

Citations

  • VYAS, S. (2005). EXPERIMENTAL CHARACTERIZING OF VORTEX STRUCTURE IN SINUSOIDAL WAVY CHANNEL AND A CASE STUDY FOR FUEL CELL APPLICATIONS [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1132255225

    APA Style (7th edition)

  • VYAS, SAURABH. EXPERIMENTAL CHARACTERIZING OF VORTEX STRUCTURE IN SINUSOIDAL WAVY CHANNEL AND A CASE STUDY FOR FUEL CELL APPLICATIONS. 2005. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1132255225.

    MLA Style (8th edition)

  • VYAS, SAURABH. "EXPERIMENTAL CHARACTERIZING OF VORTEX STRUCTURE IN SINUSOIDAL WAVY CHANNEL AND A CASE STUDY FOR FUEL CELL APPLICATIONS." Master's thesis, University of Cincinnati, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1132255225

    Chicago Manual of Style (17th edition)

ucin1132255225
2,485
© 2005, all rights reserved.
This open access ETD is published by University of Cincinnati and OhioLINK.