Flow visualization and leakage measurements of labyrinth seals /
A large scale test rig is used to conduct an experimental
| Main Author: | |
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1996.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | A large scale test rig is used to conduct an experimental and axial position. Two distinct flow visualization applicable) for a fixed annular clearance. A permanent flow axial offset distance and step height, seal performance can be greatly improved. Inspection of the time-mean flow characteristics of labyrinth seals. A novel test facility conclusions that can be inferred. decreasing the clearance diminished the effect that axial experimental results imply that by using a combination of Externally adjustable seal elements, also made of acrylic flow patterns which are beneficial to seal leakage glass, allow each element to be moved to the desired radial have some correlation to the leakage resistance of a seal, heights tend to amplify the effect that the axial offset has however, the lack of a more comprehensive data set limits the in both real-time and slow motion. Statistical information information obtained from the flow visualization seemed to investigation into the leakage resistance properties and flow is derived from the flow visualization record, and the time- leakage resistance properties of a seal occur, the flow mean flow field is mapped. When sudden changes in the moderate amount of serpentining generally had greater leakage numbers, step heights, and axial offset positions (where observation of experiments via large acrylic windows. offset has on leakage resistance. The statistical on serpentining. Conversely, however, it was observed that oscillations in the instantaneous flow field. The resistance. Furthermore, it was found that larger step resistance. Three classes of labyrinth seals are tested. result in greater serpentining. Seals that exhibit a scale enlargement of 100: I is utilized. This facility uses statistical data provides information on the unsteadiness and techniques are employed to assist in the identification of time-mean flow field have occurred. Furthermore, the visualization images indicates that certain combinations visualization record for each experiment is kept and analyzed visualization record is consulted to see what changes in the water as the working fluid and allows real-time visual with multiple cavities that provides 2D, planar flow at a Within each class, seals are tested over a range of Reynolds |
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| Item Description: | "Major subject: Mechanical Engineering". Vita. |
| Physical Description: | xvii, 117 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references. |