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논문 기본 정보

자료유형
학술저널
저자정보
Mikolaj Mrozek (Sungkyunkwan University) Hyeokgyun Moon (Sungkyunkwan University) Jinkee Lee (Sungkyunkwan University)
저널정보
한국가시화정보학회 한국가시화정보학회지 한국가시화정보학회지 Vol.22 No.2
발행연도
2024.7
수록면
63 - 73 (11page)

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초록· 키워드

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The injection of polymer can significantly reduce drag, particularly in the turbulent flow region where the mutual interaction between the polymer and turbulent vortices occurs. In this study, Taylor-Couette flow of PEO-in-water solutions with a rotating inner cylinder was analyzed. Despite the shear-thinning behaviour of PEO-in-water solutions being well-documented, for a given range of shear rates their viscosity remains nearly constant. By varying the polymer concentration, we analyzed the torque evolution of different solutions followed by the viscoelasticity effects of the polymer on the interphase transition points. The torque was analyzed using a dimensionless torque scaling method, which allows for the assessment of the fluid’s momentum transport capabilities. It was observed that for low concentrations of PEO, the flow behaviour exhibited only minor differences in comparison to that of water, the Newtonian fluid. However, once the PEO concentration exceeded the polymer overlap concentration, the flow behaviour was significantly altered.

목차

Abstract
1. Introduction
2. Materials and Methods
3. Results and discussion
4. Conclusions
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