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자료유형
학술저널
저자정보
저널정보
대한기계학회 대한기계학회 논문집 B권 대한기계학회논문집 B권 제27권 제12호
발행연도
2003.12
수록면
1,673 - 1,680 (8page)

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It is essential to operate chemical lasers with supersonic ejector system as the laser output power goes up. In this research, ejector design parameter study was carried out for optimal ejector design through understanding the ejector characteristics and design requirements for chemical lasers operating. Designed ejector was 3D annular type with 2^nd_throat geometry and pressurized air was used for primary flow. Ejector design was carried out with two steps, quasi-ID gas dynamics was used for first design and commercial code was used to verify the first design. In this study, to get the effect of ejector geometry on its performance, three cases of primary nozzle area ratio and 2^nd_throat cross sectional area and two cases of 2^nd-throat L/D ratio experiments were carried out. Primary and secondary pressures were measured to get the mass flow rate ratio, minimum secondary pressure, ejector starting pressure and un starting pressure at every case. In the result, better performance than design level was shown and optimal ejector design method for chemical lasers was obtained.

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Abstract

1.서론

2.이젝터 설계

3.이젝터 제작

4.성능평가

5.결론

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UCI(KEPA) : I410-ECN-0101-2009-550-014044824