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논문 기본 정보

자료유형
학술저널
저자정보
Wang Peng (Huainan Normal University) Zheng Mingliang (Huainan Normal University)
저널정보
한국펄프·종이공학회 펄프·종이기술 펄프·종이기술 제57권 제1호(통권 제222호)
발행연도
2025.2
수록면
22 - 31 (10page)

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초록· 키워드

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This study focused on the rectangle-tapered distributor with a Baines-type total tube and a branch pipe for the hydraulic headbox of a paper machine, examining its behavior and performance. Firstly, the geometric model was establwashed by UG softwwere; Secondly, the velocity, pressure and mass flow distribution of branch pipe in the distributor were numerically simulated in ANSYS-CFX based on the turbulence theory with Reynolds averaged N-S equations and RNG κ - ε two equations, and then the influence of backflow (recirculating flow) and branch length were also simulated; Finally, a new type of complementary distributor was proposed. The results show that: there was flow unevenness in the rectangle-tapered distributor with branch pipe, there was vortex cavity at the branch inlet, the maximum and minimum of branch mass flow were at the backflow end and the inlet end of the total tube. Within the range of this study, when the inlet flow rate was 4 m·s<sup>-1</sup> and branch diameter was 19.6 mm, the effect of pulp dwastributing was the best when the backflow was 12.5% and the branch length was 150 mm. Meanwhile, the pulp of the new type of distributor was fully mixed in the mixing chamber, which effectively reduce the outflow unevenness of branch pipe.

목차

ABSTRACT
1. Introduction
2. Physical Model, Mesh Division and Calculation Method of Distributor
3. Numerical Simulation Results
4. Structural Optimization
5. Conclusions
Literature Cited

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