Contaminant Transport in a Periodically Constricted Pipe: Taylor or Fractional Dispersion?

• 발행기관: 호서대학교 공업기술연구소
• 저자명: Zbigniew J. Kabala Young-Woo Kim
• 간행물 정보: 『공업기술연구 논문집』제30권 제1호, 97~106쪽, 전체 10쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2011.06.30

영문 초록

We used a periodically constricted pipe model as a surrogate for a homogeneous porous medium with pore vortices. With FLUENT software, we simulated solute transport and generated solute breakthrough curves (BTCs) along this pipe. Even with a significant presence of vortices, we find that Taylor dispersion develops given sufficiently lcaig travel distance or travel time，as is the case for a straight capillary tube. However, in the pre-Taylor domain, the BTCs are described by fractional dispersion

목차

I. Introduction

II. Methodology

III. Taylor Dispersion in a Straight Pipe

IV. Taylor Dispersion in a Constricted Pipe

V. Result

V I. Conclusions

키워드

Numerical Analysis CFD Pecletnumber Solute transport