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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국유체기계학회 International Journal of Fluid Machinery and Systems International Journal of Fluid Machinery and Systems Vol.10 No.4
- 발행연도
- 2017.12
- 수록면
- 447 - 456 (10page)
- DOI
- 10.5293/IJFMS.2017.10.4.447
이용수
초록· 키워드
오류제보하기
In reality, the flow condition inside meridional channel may vary from hub to tip, therefore meridional analysis will affect to the blade geometry whether is twisted or tapered. The prediction of maximum surface velocity is not easy, but Lieblein was postulated the alternative form of diffusion factor (DF) on airfoil which can be applied for the cascade analysis. Diffusion factor on cascade is an important design parameter to avoid cavitation in turbomachinery due to the pressure distribution and velocity variation on the surface. The purpose of present study is to know the influence of tangential velocity distribution and constant DF on the blade shape and performance of the axial hydro turbine. There are four criteria of tangential velocity distribution or usually is called as swirl velocity that discussed in this paper, they are mixed vortex, free vortex, forced vortex and constant vortex. Constant DF was applied to the all tangential velocity distribution to obtain pitch chord ratio calculation. This will affect to the pitch chord ratio value and the blade shape of rotor. Performance prediction of axial turbine is performed through Computational Fluid Dynamic (CFD) to validate global parameter design. The result of numerical simulation can be used as basic consideration for manufacturing and experimental testing.
목차
Abstract
1. Introduction
2. Meridional Streamline and Tangential Velocity
3. Actuator Disc Design of Stator and Rotor Blade
4. Cascade Analysis
5. Flow Diffusion
6. Blade Design and Geometry
7. Power Calculation
8. Numerical Simulation
9. Result and Discussion
10. Conclusion
References
참고문헌 (13)
참고문헌 신청
[학술지(정기간행물)] - Sutikno, P. / 2011 / Design, Simulation and Experimental of the Very Low Head Turbine with Minimum Pressure and Free Vortex Criterion / International Journal of Mechanical & Mechatronics Engineering IJMME-IJENS 11 (1)
[학술대회논문] - Sutikno, P. / 2011 / Quasi 3D Design Method, Optimization Criterion the Very Low Head Axial Turbine Design / The 7th International Conferrence on Fluid and Thermal Energy Conversion
[학술지(정기간행물)] - Railly, J.W. / 1969 / The Accuracy of the Actuator Disc Method in the Design of Axial Flow Fans / Prc Instn Engrs 184 (Pt 3G (II)) : 86 ~ 92
[학술지(정기간행물)] - Priyono Sutikno / 2016 / Optimal Design of Two-Dimensional Cascade with Shock-Free Inflow Criterion / International Journal of Fluid Machinery and Systems 9 (4) : 362 ~ 369
[학술대회논문] - Babosa, R. / 2005 / Optimized Design of Axial Flow Hydaulic Turbines / Proceeding of 18th International Congress of Mechanical Engineering
[학술대회논문] - Sutikno, P. / 2011 / Quasi 3D Design Method, Optimization Criterion the Very Low Head Axial Turbine Design / The 7th International Conferrence on Fluid and Thermal Energy Conversion
[학술지(정기간행물)] - Railly, J.W. / 1969 / The Accuracy of the Actuator Disc Method in the Design of Axial Flow Fans / Prc Instn Engrs 184 (Pt 3G (II)) : 86 ~ 92
[학술지(정기간행물)] - Priyono Sutikno / 2016 / Optimal Design of Two-Dimensional Cascade with Shock-Free Inflow Criterion / International Journal of Fluid Machinery and Systems 9 (4) : 362 ~ 369
[학술대회논문] - Babosa, R. / 2005 / Optimized Design of Axial Flow Hydaulic Turbines / Proceeding of 18th International Congress of Mechanical Engineering
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UCI(KEPA) : I410-ECN-0101-2018-554-001894902