Laminar flow of high-viscous non-Newtonian power-law and Bingham fluids in multiple structural bifurcation channel distributors: Flow patterns and pressure drop correlation

Xiaoyi Qiu; Xuesong Wang; Jie Jiang; Yuning Zhou; Wenze Guo; Zhenhao Xi; Ling Zhao; Weikang Yuan

doi:10.1016/j.cjche.2025.06.009

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Laminar flow of high-viscous non-Newtonian power-law and Bingham fluids in multiple structural bifurcation channel distributors: Flow patterns and pressure drop correlation

Updated：2026-02-12

- Laminar flow of high-viscous non-Newtonian power-law and Bingham fluids in multiple structural bifurcation channel distributors: Flow patterns and pressure drop correlation
- Laminar flow of high-viscous non-Newtonian power-law and Bingham fluids in multiple structural bifurcation channel distributors: Flow patterns and pressure drop correlation
- 中国化学工程学报（英文版） 2025年87卷第11期页码：140-156
- Affiliations：
  
  1. Shanghai Key Laboratory of Multiphase Materials Chemical Engineering, East China University of Science and Technology,Shanghai,China,200237
  2. Key Laboratory of Smart Manufacturing in Energy Chemical Process, Ministry of Education, East China University of Science and Technology,Shanghai,China,200237
  3. State Key Laboratory of Chemical Engineering and Low-Carbon Technology, East China University of Science and Technology,Shanghai,China,200237
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2025.06.009
  中图分类号：
- 纸质出版：2025
- Accepted：
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Xiaoyi Qiu, Xuesong Wang, Jie Jiang, 等. Laminar flow of high-viscous non-Newtonian power-law and Bingham fluids in multiple structural bifurcation channel distributors: Flow patterns and pressure drop correlation[J]. 中国化学工程学报（英文版）, 2025,87(11):140-156.

Xiaoyi Qiu, Xuesong Wang, Jie Jiang, Yuning Zhou, Wenze Guo, Zhenhao Xi, Ling Zhao, Weikang Yuan. Laminar flow of high-viscous non-Newtonian power-law and Bingham fluids in multiple structural bifurcation channel distributors: Flow patterns and pressure drop correlation[J]. Chinese Journal of Chemical Engineering, 2025, 87(11): 140-156.
Xiaoyi Qiu, Xuesong Wang, Jie Jiang, 等. Laminar flow of high-viscous non-Newtonian power-law and Bingham fluids in multiple structural bifurcation channel distributors: Flow patterns and pressure drop correlation[J]. 中国化学工程学报（英文版）, 2025,87(11):140-156. DOI： 10.1016/j.cjche.2025.06.009.

Xiaoyi Qiu, Xuesong Wang, Jie Jiang, Yuning Zhou, Wenze Guo, Zhenhao Xi, Ling Zhao, Weikang Yuan. Laminar flow of high-viscous non-Newtonian power-law and Bingham fluids in multiple structural bifurcation channel distributors: Flow patterns and pressure drop correlation[J]. Chinese Journal of Chemical Engineering, 2025, 87(11): 140-156. DOI： 10.1016/j.cjche.2025.06.009.

摘要

Abstract

This study presents a theoretical and experimental analysis of laminar flow behavior of high-viscous non-Newtonian power-law and Bingham fluids in multiple structural bifurcation channel distributors. Theoretical models are derived to describe velocity profiles

shear rate distribution

and pressure drop across specific channels. Modified pressure drop models are proposed based on experiments on 6 kinds of non-Newtonian fluids and 3 types of bifurcation channel distributors with different transition areas. Specifically

the deviations between the theoretical models and the experimental results are systematically analyzed

and models were modified with correction coefficients based on Reynolds number and dimensionless shape factor. The theoretical results

modified results and experimental data are compared and discussed to ensure the accuracy of the modified models

demonstrating a significant improvement in the prediction of pressure drops for high-viscous non-Newtonian fluids in certain types of bifurcation channels. Additional experiments and analyses were carried out to validate the modified models and the results suggest that the models offer a certain degree of universal applicability in bifurcation channel designs. It implies that for other types of bifurcation channel distributors

similar correction methods based on Reynolds number and shape factor may also be applicable even with different coefficients.

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