Hydrodynamics and mass transfer in decaying annular swirl flow

Journal Article · · International Communications in Heat and Mass Transfer; (United States)

DOI:https://doi.org/10.1016/0735-1933(94)90082-5· OSTI ID:5301914

Yapici, S; Patrick, M A; Wragg, A A ^[1]

---

1. Exeter Univ. (United Kingdom). School of Engineering

This paper reports an electrochemical study of local mass transfer behavior in decaying annular swirl flow. Initially, flow visualization experiments were conducted to observe the general behavior of the flow. It was found that the swirl angle decays exponentially along the tube. Measurements of pressure drop across the vaned swirl generators were correlated in terms of the inverse of the square of the tangent of the vane angle and approximately the square of the mean fluid velocity for vane angles of 30[degree] and over. Measurements of the axial distribution of local mass transfer coefficient for the inner rod were carried out using the electrochemical limiting diffusion current technique and results were correlated for each swirl generator, in the Reynolds number range 3,300--50,000. It was found that the relative enhancement of mass transfer in swirl flow increases as the vane angle increases and Reynolds number decreases.

• OSTI ID: 5301914
• Journal Information: International Communications in Heat and Mass Transfer; (United States), Journal Name: International Communications in Heat and Mass Transfer; (United States) Vol. 21:1; ISSN 0735-1933; ISSN IHMTDL
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
AUGMENTATION
BAFFLED TUBES
ECONOMICS
ENERGY TRANSFER
FLUID MECHANICS
HEAT EXCHANGERS
HEAT TRANSFER
HYDRODYNAMICS
MASS TRANSFER
MECHANICS
TUBES