Pressure Hill and Zone of Influence over Flat-Faced Bluff Bodies
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Yasumasa Watanabe
,
Kojiro Suzuki
Abstract
An experimental visualization has been carried out to study the dependence of the pressure hill height and the influence zone expanse for flow past rectangular blocks of flat square face and varying length, over a Reynolds number range from 1364 to 4931. It is found that, the pressure hill length and the influence zone expanse decrease with the length to width ratio of the block, up to about L/W = 1, for Reynolds number up to 1586. For higher Reynolds numbers, both H/W and Z/W increase with the model length, till L/W = 1. For L/W more than 1, both H/W and Z/W gradually become independent of L/W. The ratio of Z/H is influenced only marginally by L/W up to 1, and for greater values of L/W, Z/H is almost a constant at all Reynolds numbers of the present study.
Copyright © 2011 De Gruyter
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Articles in the same Issue
- Study on Fault Diagnostics of a Turboprop Engine Using Inverse Performance Model and Artificial Intelligent Methods
- Development of GUI Type On-Line Condition Monitoring Program for a Turboprop Engine Using Labview
- Research on the Multi-variable Optimization of Forward-skewed Blade
- On the Theoretical Calculation of the Stability Line of an Axial-flow Compressor Stage
- Performance Characteristics of a Partially Admitted Small-Scale Mixed-Type Turbine
- Tailoring Inlet Flow to Enable High Accuracy Compressor Performance Measurements
- Effect of a Subsonic Air Stream on a Two-dimensional Transverse Water Jet
- Pressure Hill and Zone of Influence over Flat-Faced Bluff Bodies
