CFD modeling of a headboxwith injecting dilution water in a central step diffusion tube

doi:10.1016/j.cjche.2016.06.010

›› 2016, Vol. 24 ›› Issue (10): 1313-1324.DOI: 10.1016/j.cjche.2016.06.010

• Fluid Dynamics and Transport Phenomena • 下一篇

CFD modeling of a headboxwith injecting dilution water in a central step diffusion tube

Xu Yang, Jinsong Zeng, Kefu Chen, Yucheng Feng

State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Food Science, South China University of Technology, Guangzhou 510640, China

收稿日期:2015-04-29 修回日期:2016-02-23 出版日期:2016-10-28 发布日期:2016-11-19
通讯作者: Jinsong Zeng,E-mail address:fezengjs@scut.edu.cn.
基金资助:
Supported by the Science & Technology Plan Projects of Guangzhou City (15020079, Study on Quality Intelligent Control of Modern Paper Machine and Energy-saving Technology with Equipment), and Guangdong Provincial Science & Technology Plan Projects (2015B020241001, Research and Application of Biomass Pretreatment and Ethanol Production Technology).

CFD modeling of a headboxwith injecting dilution water in a central step diffusion tube

Xu Yang, Jinsong Zeng, Kefu Chen, Yucheng Feng

State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Food Science, South China University of Technology, Guangzhou 510640, China

Received:2015-04-29 Revised:2016-02-23 Online:2016-10-28 Published:2016-11-19
Supported by:
Supported by the Science & Technology Plan Projects of Guangzhou City (15020079, Study on Quality Intelligent Control of Modern Paper Machine and Energy-saving Technology with Equipment), and Guangdong Provincial Science & Technology Plan Projects (2015B020241001, Research and Application of Biomass Pretreatment and Ethanol Production Technology).

摘要/Abstract

摘要： For engineering applications ofwater dilution controlling system, the fluid dynamics of a mixed flowwas studied with computational fluid dynamics (CFD) simulations and self-designed experimental set-up. In order to examine the predictability of CFDmodel for the headbox in industrial scale, two pulp suspensions beforemixingwere treated as homogeneous flows separately. Standard k-ε turbulence models with the mass diffusion in turbulent flows-species transport approach were applied in the simulations. A numerical simulation of this headbox model was analyzed with semi-implicit method for pressure linked equations scheme with pressure-velocity coupling. Results show that themodel can predict hydrodynamic characteristics of headbox with injecting dilution water in a central diffusion tube, and the distribution of water content at the outlet of the slice lip is ideally normal at different speeds.

关键词: Computational fluid dynamics, Headbox, Turbulence model, Species transport, Pulp suspension

Abstract: For engineering applications ofwater dilution controlling system, the fluid dynamics of a mixed flowwas studied with computational fluid dynamics (CFD) simulations and self-designed experimental set-up. In order to examine the predictability of CFDmodel for the headbox in industrial scale, two pulp suspensions beforemixingwere treated as homogeneous flows separately. Standard k-ε turbulence models with the mass diffusion in turbulent flows-species transport approach were applied in the simulations. A numerical simulation of this headbox model was analyzed with semi-implicit method for pressure linked equations scheme with pressure-velocity coupling. Results show that themodel can predict hydrodynamic characteristics of headbox with injecting dilution water in a central diffusion tube, and the distribution of water content at the outlet of the slice lip is ideally normal at different speeds.

Key words: Computational fluid dynamics, Headbox, Turbulence model, Species transport, Pulp suspension

Xu Yang, Jinsong Zeng, Kefu Chen, Yucheng Feng. CFD modeling of a headboxwith injecting dilution water in a central step diffusion tube[J]. , 2016, 24(10): 1313-1324.

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CFD modeling of a headboxwith injecting dilution water in a central step diffusion tube

CFD modeling of a headboxwith injecting dilution water in a central step diffusion tube

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