초록

LDV(laser Doppler velocimetry) measurements were conducted on the exit region of the impeller passage and the gap between the impeller and turbine blades under 0.8 speed ratio. The 0.8 speed ratio has an impeller speed of 2000rpm and a turbine speed of 1600rpm. A periodic variation of the mass flow rate is present in many of the measurements made. The frequency of this variation is the same as the frequency of the turbine blades passing the impeller passage exit. It is found that the instantaneous position of the turbine had effect on fluid flow inside the impeller passage and gap region. This study would aid in the construction of higher accuracy CFD models of this complex turbomachinery device.

키워드

Torque Converter(토크컨버터), LDV(레이저 도플러 유속계), Speed Ratio(속도비), Transmission Oil(변속기 오일), Impeller(임펠러), Turbine(터빈)

참고문헌(12)open

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  7. [보고서] M. Foster / 1998 / A Quantitative Study of Primary Flow Fields within an Automotive Torque Converter Using Laser Doppler Velocimetry

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  10. [보고서] K. Lee / 2000 / Quantification of Primary Flows of a Torque Converter Using Laser Doppler Velocimetry

  11. [학술지] 유성출 / 2017 / Intake System이 Four-valve SI 기관 연소실 내 난류 운동에너지에 미치는 영향 / 한국기계기술학회지 19 (6) : 771 ~ 777

  12. [학술지] 유성출 / 2018 / 실린더 내 유동해석에 레이저 기반 유동 진단기술 적용을 위한 실험용 Four-valve SI 기관의 설계 및 제작기술 개발 / 한국기계기술학회지 20 (3) : 377 ~ 382