Flow and heat transfer enhancement around staggered tubes using rectangular vortex generators

S. Melvin Emil; R. Nanang; Rizki Anggiansyah

Flow and heat transfer enhancement around staggered tubes using rectangular vortex generators

Prabowo^*, S. Melvin Emil, R. Nanang, Rizki Anggiansyah

^*Corresponding author for this work

ITS Surabaya

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Numerical analysis was carried out to study the flow and heat transfer characteristics around staggered tubes with rectangular vortex generators (VGs) mounted behind the tubes. The effect of location VGs in different span angle from stagnation point (Φ=120°, 135° and 140°) were investigated in detail while the Reynolds number based on diameter tube was kept constant at R_eD=2959. The numerical results are also analyzed from the correlation between the contour velocity and temperature gradients which is a basic mechanism of heat transfer. The results indicated that the rectangular VGs is able to improve the convection heat transfer on the rear part of upstream tube and forepart of downstream tube. The average Nu was shown to increase by 8%-78% and it is found that the location VGs on Φ=120° provides the best heat transfer augmentation.

Original language	English
Pages (from-to)	952-956
Number of pages	5
Journal	ARPN Journal of Engineering and Applied Sciences
Volume	11
Issue number	2
Publication status	Published - 2016
Externally published	Yes

Keywords

CFD
Heat transfer enhancement
Staggered tubes
Vortex generators

Cite this

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title = "Flow and heat transfer enhancement around staggered tubes using rectangular vortex generators",

abstract = "Numerical analysis was carried out to study the flow and heat transfer characteristics around staggered tubes with rectangular vortex generators (VGs) mounted behind the tubes. The effect of location VGs in different span angle from stagnation point (Φ=120°, 135° and 140°) were investigated in detail while the Reynolds number based on diameter tube was kept constant at ReD=2959. The numerical results are also analyzed from the correlation between the contour velocity and temperature gradients which is a basic mechanism of heat transfer. The results indicated that the rectangular VGs is able to improve the convection heat transfer on the rear part of upstream tube and forepart of downstream tube. The average Nu was shown to increase by 8%-78% and it is found that the location VGs on Φ=120° provides the best heat transfer augmentation.",

keywords = "CFD, Heat transfer enhancement, Staggered tubes, Vortex generators",

author = "Prabowo and {Melvin Emil}, S. and R. Nanang and Rizki Anggiansyah",

note = "Publisher Copyright: {\textcopyright} 2006-2016 Asian Research Publishing Network (ARPN).",

year = "2016",

language = "English",

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pages = "952--956",

journal = "ARPN Journal of Engineering and Applied Sciences",

issn = "1819-6608",

publisher = "Asian Research Publishing Network (ARPN)",

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TY - JOUR

T1 - Flow and heat transfer enhancement around staggered tubes using rectangular vortex generators

AU - Prabowo,

AU - Melvin Emil, S.

AU - Nanang, R.

AU - Anggiansyah, Rizki

PY - 2016

Y1 - 2016

N2 - Numerical analysis was carried out to study the flow and heat transfer characteristics around staggered tubes with rectangular vortex generators (VGs) mounted behind the tubes. The effect of location VGs in different span angle from stagnation point (Φ=120°, 135° and 140°) were investigated in detail while the Reynolds number based on diameter tube was kept constant at ReD=2959. The numerical results are also analyzed from the correlation between the contour velocity and temperature gradients which is a basic mechanism of heat transfer. The results indicated that the rectangular VGs is able to improve the convection heat transfer on the rear part of upstream tube and forepart of downstream tube. The average Nu was shown to increase by 8%-78% and it is found that the location VGs on Φ=120° provides the best heat transfer augmentation.

AB - Numerical analysis was carried out to study the flow and heat transfer characteristics around staggered tubes with rectangular vortex generators (VGs) mounted behind the tubes. The effect of location VGs in different span angle from stagnation point (Φ=120°, 135° and 140°) were investigated in detail while the Reynolds number based on diameter tube was kept constant at ReD=2959. The numerical results are also analyzed from the correlation between the contour velocity and temperature gradients which is a basic mechanism of heat transfer. The results indicated that the rectangular VGs is able to improve the convection heat transfer on the rear part of upstream tube and forepart of downstream tube. The average Nu was shown to increase by 8%-78% and it is found that the location VGs on Φ=120° provides the best heat transfer augmentation.

KW - CFD

KW - Heat transfer enhancement

KW - Staggered tubes

KW - Vortex generators

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SN - 1819-6608

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JO - ARPN Journal of Engineering and Applied Sciences

JF - ARPN Journal of Engineering and Applied Sciences

IS - 2

ER -

Flow and heat transfer enhancement around staggered tubes using rectangular vortex generators

Abstract

Keywords

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