원문정보
초록
영어
Hydraulic performance of a helical turbine varies with the speed of the influx of the duct. Therefore, in order to find the optimal shape of the duct flow analysis was carried out by using commercial code ANSYS CFX. From CFD analysis results, the optimum position of the duct pipe angle was 25 degrees and the average velocity of turbine inlet increased about 72% compared to the velocity without diffuser and the maximum torque of turbine was about 168.73 Nm, From performance evaluation test using towing tank, the velocity of 1.1m/s in the duct inlet and maximum electric power of 1.49kW were obtained. These experimental results were agreed with numerical results with 10% error range.
목차
1. 서론
2. 지배방정식과 수치해석
2.1 지배방정식
2.2 수치해석
3. 수치해석결과 및 고찰
3.1 디퓨져에 대한 유동특성
3.2 디퓨져 내에 장착된 터빈의 유동특성
4. 성능실험 및 결과
4.1 성능실험 장치구성 및 방법
4.2 성능실험결과 및 고찰
5. 결론
후기
References