Loss Characteristics of Orifices and NozzlesSource: Journal of Fluids Engineering:;1978:;volume( 100 ):;issue: 003::page 299DOI: 10.1115/1.3448670Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Loss characteristics of sharp-edged orifices, quadrant-edged orifices for varying edge radii, and nozzles are studied for Reynolds numbers less than 10,000 for β ratios from 0.2 to 0.8. The results may be reliably extrapolated to higher Reynolds numbers. Presentation of losses as a percentage of meter pressure differential shows that the flow can be identified into fully laminar regime, critical Reynolds number regime, relaminarization regime, and turbulent flow regime. An integrated picture of variation of parameters such as discharge coefficient, loss coefficient, settling length, pressure recovery length, and center line velocity confirms this classification.
keyword(s): Nozzles , Orifices , Reynolds number , Pressure , Flow (Dynamics) , Turbulence AND Discharge coefficient ,
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| contributor author | S. H. Alvi | |
| contributor author | K. Sridharan | |
| contributor author | N. S. Lakshmana Rao | |
| date accessioned | 2017-05-08T23:05:02Z | |
| date available | 2017-05-08T23:05:02Z | |
| date copyright | September, 1978 | |
| date issued | 1978 | |
| identifier issn | 0098-2202 | |
| identifier other | JFEGA4-26936#299_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/91162 | |
| description abstract | Loss characteristics of sharp-edged orifices, quadrant-edged orifices for varying edge radii, and nozzles are studied for Reynolds numbers less than 10,000 for β ratios from 0.2 to 0.8. The results may be reliably extrapolated to higher Reynolds numbers. Presentation of losses as a percentage of meter pressure differential shows that the flow can be identified into fully laminar regime, critical Reynolds number regime, relaminarization regime, and turbulent flow regime. An integrated picture of variation of parameters such as discharge coefficient, loss coefficient, settling length, pressure recovery length, and center line velocity confirms this classification. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Loss Characteristics of Orifices and Nozzles | |
| type | Journal Paper | |
| journal volume | 100 | |
| journal issue | 3 | |
| journal title | Journal of Fluids Engineering | |
| identifier doi | 10.1115/1.3448670 | |
| journal fristpage | 299 | |
| journal lastpage | 307 | |
| identifier eissn | 1528-901X | |
| keywords | Nozzles | |
| keywords | Orifices | |
| keywords | Reynolds number | |
| keywords | Pressure | |
| keywords | Flow (Dynamics) | |
| keywords | Turbulence AND Discharge coefficient | |
| tree | Journal of Fluids Engineering:;1978:;volume( 100 ):;issue: 003 | |
| contenttype | Fulltext |