TY - JOUR
T1 - Heat transfer characteristics of the rib angle in the pin-fin cooling combined with perforated blockage
AU - Kim, Yong Jin
AU - Choi, Seok Min
AU - Park, Hee Seung
AU - Kim, Su Won
AU - Jung, Eui Yeop
AU - Park, Jung Shin
AU - Cho, Hyung Hee
N1 - Publisher Copyright:
© 2019 The Korean Society of Mechanical Engineers.
PY - 2019
Y1 - 2019
N2 - To cool the internal passage of a trailing edge, a cooling method that uses a pin-fin array, perforated blockage, and an angled rib is applied. This study investigated the effect of an angled rib in a pin-fin array combined with perforated blockage. A numerical analysis was conducted to analyze the flow and heat transfer characteristics of each shape by changing the rib angle to -45°, 0°, and 45°. The Reynolds number based on the pin diameter was fixed at 5,000. The influence of the flow distribution on the channel confirmed the heat transfer and pressure characteristics. As a result, the flow distribution in the channel was different depending on the rib angle. In particular, when the perforated blockage was combined with the pin-fin array, the uniformity of the heat transfer was improved.
AB - To cool the internal passage of a trailing edge, a cooling method that uses a pin-fin array, perforated blockage, and an angled rib is applied. This study investigated the effect of an angled rib in a pin-fin array combined with perforated blockage. A numerical analysis was conducted to analyze the flow and heat transfer characteristics of each shape by changing the rib angle to -45°, 0°, and 45°. The Reynolds number based on the pin diameter was fixed at 5,000. The influence of the flow distribution on the channel confirmed the heat transfer and pressure characteristics. As a result, the flow distribution in the channel was different depending on the rib angle. In particular, when the perforated blockage was combined with the pin-fin array, the uniformity of the heat transfer was improved.
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U2 - 10.3795/KSME-B.2019.43.7.453
DO - 10.3795/KSME-B.2019.43.7.453
M3 - Article
AN - SCOPUS:85069710410
SN - 1226-4881
VL - 43
SP - 453
EP - 461
JO - Transactions of the Korean Society of Mechanical Engineers, B
JF - Transactions of the Korean Society of Mechanical Engineers, B
IS - 7
ER -