کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4764192 | 1423383 | 2016 | 37 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
CFD modeling of a headbox with injecting dilution water in a central step diffusion tube
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: CFD modeling of a headbox with injecting dilution water in a central step diffusion tube CFD modeling of a headbox with injecting dilution water in a central step diffusion tube](/preview/png/4764192.png)
چکیده انگلیسی
For engineering applications of water dilution controlling system, the fluid dynamics of a mixed flow was studied with computational fluid dynamics (CFD) simulations and self-designed experimental set-up. In order to examine the predictability of CFD model for the headbox in industrial scale, two pulp suspensions before mixing were 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 the model 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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Journal of Chemical Engineering - Volume 24, Issue 10, October 2016, Pages 1313-1324
Journal: Chinese Journal of Chemical Engineering - Volume 24, Issue 10, October 2016, Pages 1313-1324
نویسندگان
Xu Yang, Jinsong Zeng, Kefu Chen, Yucheng Feng,