Micro-fluidic flow control using the electroosmosis /
The objective of the proposed thesis is the introduction and development of micro-scale particle image velocimetry ([u]-PIV) to study the micro-scale flow field in the electroosmotic flow, which is the flow produced by the action of an electric field on a fluid with a net charge, called Zeta potenti...
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
2001.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | The objective of the proposed thesis is the introduction and development of micro-scale particle image velocimetry ([u]-PIV) to study the micro-scale flow field in the electroosmotic flow, which is the flow produced by the action of an electric field on a fluid with a net charge, called Zeta potential, which is confined in the Debye layer. This basic phenomenon in the electro-kinetic transports plays an important role on the micro-fluidic systems being explored today because it shows potential application to a variety of MEMS devices. A noble micro-scale particle image velocimetry ([u]-PIV) system has been developed for the velocity measurements using an Ar-ion laser, microscope, CCD camera and optical filters. By tracking the fluorescence images of sub-micron seeding particles, the full-field velocity distributions have been measured in the Eulerian viewpoint. Also, the experiment has focused on finding the effects of electroosmotic forces on the micro-scale flow fields, and flow control of electroosmotic flow in micro-geometries. Using the micro-PIV techniques, electroosmotically driven flows in various microchannel configurations have been measured to examine their feasibility to use for micro-pumping and micro-valve applications. |
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| Item Description: | "Major subject: Mechanical Engineering". Vita. |
| Physical Description: | xi, 52 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references (leaves 48-51). |