TY - GEN
T1 - Heat transfer in a channel with inclined target surface cooled by single array of impinging jets
AU - Al-Hadhrami, Luai M.
AU - Shaahid, S. M.
AU - Al-Mubarak, Ali A.
PY - 2007
Y1 - 2007
N2 - An experimental investigation has been carried out to study the heat transfer characteristics in a channel with heated target plate inclined at an angle cooled by single array of centered impinging jets. The target plate forms the leading edge of a gas turbine blade. The work includes the effect of various exit outflow orientations and crossflow and feed channel aspect ratios on the heat transfer characteristics for a given orifice-jet plate configuration. Three feed channel aspect ratios (H/d = 5, 7, 9) and have been examined. In general, it has been observed that Nu is high for higher aspect ratios. This increase can be attributed to increase in strength of impinging jets due to increase in feed channel aspect ratio. Additionally, for a given jet-orifice plate with centered holes and for a given Re=18800, the heat transfer is almost the same through out the target surface for the outflow passing out in both the directions.
AB - An experimental investigation has been carried out to study the heat transfer characteristics in a channel with heated target plate inclined at an angle cooled by single array of centered impinging jets. The target plate forms the leading edge of a gas turbine blade. The work includes the effect of various exit outflow orientations and crossflow and feed channel aspect ratios on the heat transfer characteristics for a given orifice-jet plate configuration. Three feed channel aspect ratios (H/d = 5, 7, 9) and have been examined. In general, it has been observed that Nu is high for higher aspect ratios. This increase can be attributed to increase in strength of impinging jets due to increase in feed channel aspect ratio. Additionally, for a given jet-orifice plate with centered holes and for a given Re=18800, the heat transfer is almost the same through out the target surface for the outflow passing out in both the directions.
UR - https://www.scopus.com/pages/publications/34548767129
U2 - 10.1115/GT2007-27055
DO - 10.1115/GT2007-27055
M3 - Conference contribution
AN - SCOPUS:34548767129
SN - 079184790X
SN - 9780791847909
T3 - Proceedings of the ASME Turbo Expo
SP - 35
EP - 42
BT - Proceedings of the ASME Turbo Expo 2007 - Power for Land, Sea, and Air
ER -