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| Study on Optimization of Flow Behavior of Carbon Fiber Pulp in Headbox Systems |
| Received:August 28, 2025 Revised:October 30, 2025 |
| DOI：10.11980/j.issn.0254-508X.2026.06.014 |
| Key Words:carbon fiber headbox fiber dispersion multiphase flow numerical simulation |
| Fund Project:辽宁省科技联合计划重点研发项目（2025JH2/101800304）；大连市重点科技研发计划（2023YF14GX021）；中国石油化工股份有限公司合同项目（320131-3）；中国石油化工股份有限公司合同项目（KL125003）。 |
| Author Name | Affiliation | Postcode | | DU Shuming* | 1School of Environmental Science and Engineering, Dalian Maritime University, Dalian, Liaoning Province, 116026
2Sinopec （Dalian） Petroleum & Chemical Research Institute Co., Ltd., Dalian, Liaoning Province, 116045 | 116045 | | WANG Yangfeng | 2Sinopec （Dalian） Petroleum & Chemical Research Institute Co., Ltd., Dalian, Liaoning Province, 116045 | 116045 | | WANG Hongtao | 2Sinopec （Dalian） Petroleum & Chemical Research Institute Co., Ltd., Dalian, Liaoning Province, 116045 | 116045 | | LIU Hui* | 1School of Environmental Science and Engineering, Dalian Maritime University, Dalian, Liaoning Province, 116026 | 116026 | | MA Chuanjun | 2Sinopec （Dalian） Petroleum & Chemical Research Institute Co., Ltd., Dalian, Liaoning Province, 116045 | 116045 |
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| Abstract:In this study， the Fluent software was used to perform three-dimensional numerical simulations of the carbon fiber pulp flow inside the headbox during the wet-forming process of carbon paper production， and the effects of headbox inclination angle (7.5° to 45°) and inlet flow velocity （1 to 6 m/s） on pulp flow velocity， component uniformity， and turbulent kinetic energy were systematically analyzed， aiming to optimize the flow characteristics of the carbon fiber pulp to improve the uniformity of the carbon paper. The results showed that as the inclination angle increased， both turbulence intensity and turbulence scale increased， and fiber flocculation was alleviated. Higher inlet flow velocity enhanced turbulence intensity and promoted uniform fiber dispersion， but it also led to a decrease in outlet stability. Based on the comprehensive analysis of the simulation results， the optimal operating conditions for the carbon fiber pulp in the headbox were found to be an inclination angle of 30° and an inlet flow velocity of 3 m/s. |
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