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- W102709653 abstract "․ Sanghun Kang* ․ Yangji Lee* ․ Sooseok Yang**ABSTRACT In order to investigate the effect of fuel injection hole con figuration within the scramjet combustor, experiment and quasi-one-dimensional analysis was performed. An d the results were compared with experiment and analysis result which were performed in 2008 with same facility and test condition. Fuel injection hole size was decreased and quantity was increas ed. However the depth of fuel penetration and flow quantity of fuel were maintained. As a tes t result, combustion performance was increased significantly with no-cavity injector and slightly wi th plain-cavity. However, combustion performance with zigzag-cavity was decreased. 초 록 초음속 연소에서 연료를 분사하는 분사구의 형태에 따른 연소 성능의 변화를 파악하기 위하여 실험과 준일차원 해석(Quasi-One Dimensional Analysis)을 수행하였으며, 결과 값을 본 팀에서 2008년에 수행한 데이터와 비교해 보았다. 시험은 일본 JAXA에서 보유하고 있는 불어내기식 풍동을 사용하였으며, 온도조건을 맞추기 위하여 Vitiated Heater가 사용되었다. 시험을 위하여 2008년 수행하였던 시험모델에서 사용한 연료 분사구의 크기를 줄이고 개수를 증가시켰다. 연료 분사구의 크기 및 개수는 동일한 연료 압력에서 연료의 분사량과 침투깊이가 동일하도록 결정되었다. 실험결과 공동이 없을 시에는 연료 분사구의 크기를 줄이고 개수를 늘렸을 때 연소성능이 큰 폭으로 증가하였지만, 일자형 공동에서는 그 영향이 미미하였다. 지그재그형 공동에서는 연료 분사구의 크기를 줄이고 개수를 늘렸을 때 오히려 연소성능의 저하가 관찰되었다. Key Words : Scramjet(스크램제트), Supersonic Combustion(초음속연소), Fuel Injection(연료분사), Hydrogen(수소), Combustion Efficiency(연소효율)" @default.
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- W102709653 date "2011-01-01" @default.
- W102709653 modified "2023-09-23" @default.
- W102709653 title "A Study on the Combustion Performance with Variation of Fuel Injection Hole Configuration at Supersonic Combustion" @default.
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