@inproceedings{dd7596480b264244a6dc75fb173040a1,
title = "Heat transfer on rotating channel with various heights of pin-fin",
abstract = "Pin-fins have been used to enhance the heat transfer near the trailing edge of a turbine airfoil. Previous pin-fin heat transfer studies focused mainly on the array geometry of pin height-to-diameter equal to unity in a stationary frame. This study experimentally examines the effects of pin height-to-diameter ratio (Hp/Dp) from 2 to 4 and rotation number (Ro) from 0 to 0.2. The tested model used a staggered pin-fin array with an inter-pin spacing of 2.5 times the pin-diameter (S/D=2.5) in both longitudinal and transverse directions. Detailed heat/mass transfer coefficients were measured using the naphthalene sublimation technique with a heat-mass transfer analogy. The data measured suggest that an increase in Hp/Dp increases the level of array heat/mass transfer. Array averaged Sherwood numbers for Hp/Dp = 3 and Hp/Dp = 4 are approximately 10% and 35% higher than that of Hp/Dp = 2. The effect of rotation induces notable difference in heat/mass transfer between the leading surface and the trailing surface. The heat transfer coefficients change a little although the rotating number increases in the tested range because the pin-fins break the rotation-induced vortices.",
author = "Park, {Jun Su} and Kim, {Kyung Min} and Lee, {Dong Hyun} and Cho, {Hyung Hee} and Chyu, {Minking K.}",
year = "2008",
doi = "10.1115/GT2008-50783",
language = "English",
isbn = "9780791843130",
series = "Proceedings of the ASME Turbo Expo",
number = "PART A",
pages = "727--734",
booktitle = "2008 Proceedings of the ASME Turbo Expo",
edition = "PART A",
note = "2008 ASME Turbo Expo ; Conference date: 09-06-2008 Through 13-06-2008",
}