지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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The numerical study was conducted to investigate the pump performance due to impeller related parameters change in centrifugal pump of very low specific speed by using CFD code. A small centrifugal pump whose specific speed is N<SUB>S</SUB>=76.2 was used, and the performance characteristics were discussed for different number of vanes, rotational speed, and the length and height of vane.
The numerical results at a very low specific speed show that the increase of the number of vanes has little effect on improvement of output pressure but results in the reduction of pressure fluctuation, and that the head increases with the increase in the rotational speed. The decreasing the length of vane has a considerable reduction of the capacity coefficient in comparison with decreasing the height of vane.
The numerical results at a very low specific speed show that the increase of the number of vanes has little effect on improvement of output pressure but results in the reduction of pressure fluctuation, and that the head increases with the increase in the rotational speed. The decreasing the length of vane has a considerable reduction of the capacity coefficient in comparison with decreasing the height of vane.
목차
ABSTRACT
1. 서론
2. 유동해석
3. 수치해석 결과 및 고찰
4. 결론
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참고문헌
참고문헌 (11)
참고문헌 신청
1. [단행본] - S. L. Dixon / 1998 / Fluid Mechanics and Thermodynamics of Turbomachinery, Fourth Ed / Butterworth Heinemann
2. [학술지(정기간행물)] - J. Moore / 1984 / Performance evaluation of centrifugal compressor impellers using three dimensional viscous flow calculations / J. Eng. Gas Turbines Power, Trans. ASME 106 : 475 ~ 481
3. [학위논문] - 이봉주 / 2001 / 낮은 비속도 원심펌프의 임펠러 바깥지름 절단에 따른 성능특성의 변화 / 석사 / 숭실대학교 대학원
5. [단행본] - A. J. Stepanoff / 1957 / Centrifugal and Axial Flow Pumps, 2nd Ed / John Wiley & Sons : 69 ~ 89
6. [학술대회논문] - J. Kurokawa / 1998 / Performances of centrifugal Pumps of very low specific speed / Proc. 19th IAHR Symposium on Hydraulic Machinery and Vavitation : 838 ~ 842
2. [학술지(정기간행물)] - J. Moore / 1984 / Performance evaluation of centrifugal compressor impellers using three dimensional viscous flow calculations / J. Eng. Gas Turbines Power, Trans. ASME 106 : 475 ~ 481
3. [학위논문] - 이봉주 / 2001 / 낮은 비속도 원심펌프의 임펠러 바깥지름 절단에 따른 성능특성의 변화 / 석사 / 숭실대학교 대학원
5. [단행본] - A. J. Stepanoff / 1957 / Centrifugal and Axial Flow Pumps, 2nd Ed / John Wiley & Sons : 69 ~ 89
6. [학술대회논문] - J. Kurokawa / 1998 / Performances of centrifugal Pumps of very low specific speed / Proc. 19th IAHR Symposium on Hydraulic Machinery and Vavitation : 838 ~ 842
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UCI(KEPA) : I410-ECN-0101-2012-554-004356810