Experimental and Analytical Study of Flow Diversion Beyond an Underexpanded NozzleSource: Journal of Fluids Engineering:;1991:;volume( 113 ):;issue: 003::page 475Author:E. C. Hansen
DOI: 10.1115/1.2909520Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A steady-state flow apparatus was used to investigate the process of gun gas diversion through a single hole perforated disk diverter. The amount of diverted flow was found to depend on the distance between the nozzle and the diverter disk and the ratio of nozzle pressure to diverter exit pressure. Experimental studies used nitrogen and carbon dioxide as the working fluids to show the effect of specific heat ratio. At ratios of nozzle pressure to ambient pressure ranging from 4 to 60 diversion efficiencies of 50 to 99 percent were produced. A one-dimensional analytic gas flow model was developed. Results of the analytic model paralleled the experimental data for pressure ratios over 10.
keyword(s): Flow (Dynamics) , Nozzles , Pressure , Disks , Carbon dioxide , Nitrogen , Steady state , Specific heat , Fluids AND Gas flow ,
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| contributor author | E. C. Hansen | |
| date accessioned | 2017-05-08T23:35:48Z | |
| date available | 2017-05-08T23:35:48Z | |
| date copyright | September, 1991 | |
| date issued | 1991 | |
| identifier issn | 0098-2202 | |
| identifier other | JFEGA4-27061#475_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/108717 | |
| description abstract | A steady-state flow apparatus was used to investigate the process of gun gas diversion through a single hole perforated disk diverter. The amount of diverted flow was found to depend on the distance between the nozzle and the diverter disk and the ratio of nozzle pressure to diverter exit pressure. Experimental studies used nitrogen and carbon dioxide as the working fluids to show the effect of specific heat ratio. At ratios of nozzle pressure to ambient pressure ranging from 4 to 60 diversion efficiencies of 50 to 99 percent were produced. A one-dimensional analytic gas flow model was developed. Results of the analytic model paralleled the experimental data for pressure ratios over 10. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Experimental and Analytical Study of Flow Diversion Beyond an Underexpanded Nozzle | |
| type | Journal Paper | |
| journal volume | 113 | |
| journal issue | 3 | |
| journal title | Journal of Fluids Engineering | |
| identifier doi | 10.1115/1.2909520 | |
| journal fristpage | 475 | |
| journal lastpage | 478 | |
| identifier eissn | 1528-901X | |
| keywords | Flow (Dynamics) | |
| keywords | Nozzles | |
| keywords | Pressure | |
| keywords | Disks | |
| keywords | Carbon dioxide | |
| keywords | Nitrogen | |
| keywords | Steady state | |
| keywords | Specific heat | |
| keywords | Fluids AND Gas flow | |
| tree | Journal of Fluids Engineering:;1991:;volume( 113 ):;issue: 003 | |
| contenttype | Fulltext |