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| Experimental Study on the Infrared Signature Suppression Device of a Marine Gas Turbine Exhaust System |
| TAN Li-Cheng, ZHANG Hui-Sheng, LU Zhen-Hua, SU Ming |
| (Key Laboratory for Power Machinery and Engineering of Ministry of Education, Shanghai Jiaotong University, Shanghai 200240, China) |
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Abstract An experiment was carried out to study the ejector. The impact of the distance of the nozzle and the mixer was tested. Different nozzles were also used. The temperature field on the outlet baseline of the ejector was recorded as well as the static pressure of the main stream. The results indicate that the exhaust temperature is reduced most effectively when the distance ratio a/D reaches 0.875. In addition, decreasing the outlet area of nozzle helps to lower the exhaust temperature but will also increase the resistance of the infrared suppressor.
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Received: 09 March 2010
Published: 29 June 2011
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