Experiments on heat transfer in trapezoidal channel with short pin-fin arrays

Li Zhang; Hui Ren Zhu; Song Ling Liu; Xue Wen Wang

Experiments on heat transfer in trapezoidal channel with short pin-fin arrays

Li Zhang, Hui Ren Zhu, Song Ling Liu, Xue Wen Wang

School of Power and Energy

Northwestern Polytechnical University Xian

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

6 Scopus citations

Abstract

An experiments study has been performed to investigate the heat transfer characteristics in trapezoidal channel with small spacing short pin-fin arrays. The effects of ratio of lateral-to-total flow rate (0.25 ≤ c ≤ 1) and flow Reynolds number (3 × 10⁴ ≤ Re_c ≤ 9 × 10⁴) have been investigated. It is found that endwall averaged Nusselt number decreases with increasing ejection ratio c firstly, and then increases with increasing c as c > 0.75. The results also show that Nusselt number distribution along chord-wise and span-wise directions is strongly dependent on the ejection ratio over the range of Reynolds number studied.

Original language	English
Pages (from-to)	523-526+556
Journal	Tuijin Jishu/Journal of Propulsion Technology
Volume	29
Issue number	5
State	Published - Oct 2008

Keywords

Experimentation
Heat transfer
Pin-fin
Turbine blade

Cite this

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title = "Experiments on heat transfer in trapezoidal channel with short pin-fin arrays",

abstract = "An experiments study has been performed to investigate the heat transfer characteristics in trapezoidal channel with small spacing short pin-fin arrays. The effects of ratio of lateral-to-total flow rate (0.25 ≤ c ≤ 1) and flow Reynolds number (3 × 104 ≤ Rec ≤ 9 × 104) have been investigated. It is found that endwall averaged Nusselt number decreases with increasing ejection ratio c firstly, and then increases with increasing c as c > 0.75. The results also show that Nusselt number distribution along chord-wise and span-wise directions is strongly dependent on the ejection ratio over the range of Reynolds number studied.",

keywords = "Experimentation, Heat transfer, Pin-fin, Turbine blade",

author = "Li Zhang and Zhu, {Hui Ren} and Liu, {Song Ling} and Wang, {Xue Wen}",

year = "2008",

month = oct,

language = "英语",

volume = "29",

pages = "523--526+556",

journal = "Tuijin Jishu/Journal of Propulsion Technology",

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T1 - Experiments on heat transfer in trapezoidal channel with short pin-fin arrays

AU - Zhang, Li

AU - Zhu, Hui Ren

AU - Liu, Song Ling

AU - Wang, Xue Wen

PY - 2008/10

Y1 - 2008/10

N2 - An experiments study has been performed to investigate the heat transfer characteristics in trapezoidal channel with small spacing short pin-fin arrays. The effects of ratio of lateral-to-total flow rate (0.25 ≤ c ≤ 1) and flow Reynolds number (3 × 104 ≤ Rec ≤ 9 × 104) have been investigated. It is found that endwall averaged Nusselt number decreases with increasing ejection ratio c firstly, and then increases with increasing c as c > 0.75. The results also show that Nusselt number distribution along chord-wise and span-wise directions is strongly dependent on the ejection ratio over the range of Reynolds number studied.

AB - An experiments study has been performed to investigate the heat transfer characteristics in trapezoidal channel with small spacing short pin-fin arrays. The effects of ratio of lateral-to-total flow rate (0.25 ≤ c ≤ 1) and flow Reynolds number (3 × 104 ≤ Rec ≤ 9 × 104) have been investigated. It is found that endwall averaged Nusselt number decreases with increasing ejection ratio c firstly, and then increases with increasing c as c > 0.75. The results also show that Nusselt number distribution along chord-wise and span-wise directions is strongly dependent on the ejection ratio over the range of Reynolds number studied.

KW - Experimentation

KW - Heat transfer

KW - Pin-fin

KW - Turbine blade

UR - http://www.scopus.com/inward/record.url?scp=55949083081&partnerID=8YFLogxK

M3 - 文章

AN - SCOPUS:55949083081

SN - 1001-4055

VL - 29

SP - 523-526+556

JO - Tuijin Jishu/Journal of Propulsion Technology

JF - Tuijin Jishu/Journal of Propulsion Technology

IS - 5

ER -

Experiments on heat transfer in trapezoidal channel with short pin-fin arrays

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Keywords

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