CFD analysis of heat transfer and friction factor characteristics in a circular tube fitted with quadrant-cut twisted tape inserts

Sami D. Salman, Abdul Amir H. Kadhum, Mohd Sobri Takriff, Abu Bakar Mohamad

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

This paper reports numerical investigations of heat transfer and friction factor characteristics in swirling flow conditions using CFD simulation. A commercial CFD package, FLUENT 6.3.26, was used in this study. 3D models for circular tube fitted with classical and quadrant-cut twisted tape (QCT) inserts with three twist ratios (y = 2.93, 3.91, and 4.89) and different cut depths (w = 0.5, 1.0, and 1.5 cm) were generated for the simulation. The data obtained from the CFD simulation were verified with the literature correlations of plain tube with the discrepancy of less than ±8% for Nusselt number and ±10% for friction factor. The results show that there was a significant increase in heat transfer coefficient and friction factor in the tube fitted with quadrant-cut twisted tape (QCT) with decreasing of twist ratio (y) and cut depth (w). Furthermore, the configuration of QCT insert with a twist ratio of y = 2.93 and a cut depth of w = 0.5 cm offered higher heat transfer rate and friction factor than other twist ratios.

Original languageEnglish
Article number273764
JournalMathematical Problems in Engineering
Volume2013
DOIs
Publication statusPublished - 2013

Fingerprint

Die casting inserts
Quadrant
Tapes
Heat Transfer
Friction
Tube
Computational fluid dynamics
Heat transfer
Twist
CFD Simulation
Swirling flow
Nusselt number
Heat transfer coefficients
Swirling Flow
FLUENT
Heat Transfer Coefficient
Numerical Investigation
3D Model
Discrepancy
Configuration

ASJC Scopus subject areas

  • Mathematics(all)
  • Engineering(all)

Cite this

CFD analysis of heat transfer and friction factor characteristics in a circular tube fitted with quadrant-cut twisted tape inserts. / Salman, Sami D.; Kadhum, Abdul Amir H.; Takriff, Mohd Sobri; Mohamad, Abu Bakar.

In: Mathematical Problems in Engineering, Vol. 2013, 273764, 2013.

Research output: Contribution to journalArticle

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