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박재인,조강래,Park, Jae-In,Cho, Kang-Rae 한국유체기계학회 1998 한국유체기계학회 논문집 Vol.1 No.1
The automotive torque converter is a complex turbomachine used to transfer power smoothly from an engine to a transmission. Its hydrodynamic design technology has been advanced very much during the past few years. A review of technologies for developing the torque converter was presented. In this paper, the technologies in the torque converter were divided into four parts: one-dimensional analysis, experimental study, numerical study, and new design method of the torque converter. In order to provide useful guidances to the torque converter designer, numerous papers published previously were incited and summarized briefly in this paper.
익렬간 혼합모델을 이용한 토크 컨버터 유동장의 수치계산
박재인,조강래,Park, Jae-In,Jo, Gang-Rae 대한기계학회 1998 大韓機械學會論文集B Vol.22 No.3
In this study, a steady three-dimensional incompressible turbulent flow within a torque converter was numerically analyzed with the introduction of interrow mixing model. Mixing planes were introduced to exchange the flow informations between two adjacent elements of the torque converter. The mixing planes were installed among three elements of the torque converter. Therefore, in the present method, it could be possible to calculate the flow-filed within the torque converter without any assumption of circulating flow rates or any extension of boundaries toward the upstream and the downstream for each element. The numerically calculated performances of the torque converter were in good agreement with experimental results, and the complex flow patterns were be observed according to design and off-design condition. As a conclusion, it was found that the present numerical method was very effective in the steady flow analysis of torque converters.