fnctId=thesis,fnctNo=16
마모 형상에 따른 래버린스 실의 누설 특성에 대한 해석적 연구
- 링크
- http://dx.doi.org/10.5293/kfma.2018.21.1.027
- 작성자
- 김동현
- 저자
- Sang-Moo Woo
- 발행사항
- 한국유체기계학회 논문집 Vol. 21, No. 1, pp. 27-33
- 발행일
- 2018-02
- 국문초록
- 영문초록
- A rotating machine, such as a gas turbine, Leakage is important in efficiency. Despite proper design of seal, wear and rub-grooved shapes occur on rotor or stator during operation. Clearance is important parameter in leakage of labyrinth seal but the worn shape increases clearance and leakage. This study is about the leakage characteristic of groove shape in width and depth directions. Numerical analysis of 3D geometry is conducted using ANSYS Fluent 15.0, and the results are shown using the discharge coefficient. when grooves occur at the smaller clearance, leakage increases considerably as compared with other cases. The minimum clearance can be expressed by the initial clearance and length of width and depth. As a result, Leakage characteristic depend on where the minimum clearance is located.
- 일반텍스트
- 첨부파일