Mixing Characteristics of Axisymmetric Free Jets From a Contoured Nozzle, an Orifice Plate and a PipeSource: Journal of Fluids Engineering:;2001:;volume( 123 ):;issue: 004::page 878Author:J. Mi
,
ARC Research Fellow
,
G. J. Nathan
,
FCT Senior Lecturer
,
D. S. Nobes
,
Research Fellow
DOI: 10.1115/1.1412460Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The differences in mixing performance between axisymmetric turbulent jets issuing from three common types of nozzle, viz. a contoured (or smooth contraction) nozzle, a sharp-edged orifice and a long pipe, are investigated. The investigation is carried out using both qualitative flow visualizations and quantitative measurements of the centerline passive temperature. It is revealed that the jet issuing from an orifice plate provides the greatest rate of mixing with ambient fluid, while the pipe jet has the lowest rate. Physical insight into the differences is explored using a planar imaging technique and measurements of power spectra of the fluctuating velocity.
keyword(s): Jets , Nozzles , Pipes , Temperature , Turbulence , Fluids AND Measurement ,
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| contributor author | J. Mi | |
| contributor author | ARC Research Fellow | |
| contributor author | G. J. Nathan | |
| contributor author | FCT Senior Lecturer | |
| contributor author | D. S. Nobes | |
| contributor author | Research Fellow | |
| date accessioned | 2017-05-09T00:05:07Z | |
| date available | 2017-05-09T00:05:07Z | |
| date copyright | December, 2001 | |
| date issued | 2001 | |
| identifier issn | 0098-2202 | |
| identifier other | JFEGA4-27167#878_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/125372 | |
| description abstract | The differences in mixing performance between axisymmetric turbulent jets issuing from three common types of nozzle, viz. a contoured (or smooth contraction) nozzle, a sharp-edged orifice and a long pipe, are investigated. The investigation is carried out using both qualitative flow visualizations and quantitative measurements of the centerline passive temperature. It is revealed that the jet issuing from an orifice plate provides the greatest rate of mixing with ambient fluid, while the pipe jet has the lowest rate. Physical insight into the differences is explored using a planar imaging technique and measurements of power spectra of the fluctuating velocity. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Mixing Characteristics of Axisymmetric Free Jets From a Contoured Nozzle, an Orifice Plate and a Pipe | |
| type | Journal Paper | |
| journal volume | 123 | |
| journal issue | 4 | |
| journal title | Journal of Fluids Engineering | |
| identifier doi | 10.1115/1.1412460 | |
| journal fristpage | 878 | |
| journal lastpage | 883 | |
| identifier eissn | 1528-901X | |
| keywords | Jets | |
| keywords | Nozzles | |
| keywords | Pipes | |
| keywords | Temperature | |
| keywords | Turbulence | |
| keywords | Fluids AND Measurement | |
| tree | Journal of Fluids Engineering:;2001:;volume( 123 ):;issue: 004 | |
| contenttype | Fulltext |