2011
DOI: 10.1177/0957650911410926
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Influence of internal parallel and v-shaped ribs on the discharge coefficient of a cylindrical film cooling hole

Abstract: An experimental study has been conducted to investigate the discharge behaviour of cylindrical film cooling holes with the main focus on the effects of rib arrangement and crossflow velocity inside the internal cooling passage of a gas turbine blade. Two straight flow channels of rectangular cross-section simulate the crossflow situations present at the inlet and outlet of a film cooling hole. The two channels are connected by a single scaled-up film cooling hole with a diameter of 10 mm, an inclination angle … Show more

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Cited by 5 publications
(2 citation statements)
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“…The relevance of these influences as well as favourable cooling hole positions in the rib segment are a matter of research interest. A detailed view on hole placement in relation to turbulators can be found in Bunker and Bailey (2001), Heneka et al (2011), Agata et al (2012) and Klavetter et al (2016) investigating the influence of the cooling hole position relative to the turbulator and the shape of the ribs on the discharge coefficient and film cooling effectiveness. Thurman and Poinsatte (2001) and Kunze and Vogeler (2013) investigated the internal heat transfer for 90°r ibs and revealed the position of cooling holes next to the upstream rib as superior to middle and downstream position.…”
Section: Introductionmentioning
confidence: 99%
“…The relevance of these influences as well as favourable cooling hole positions in the rib segment are a matter of research interest. A detailed view on hole placement in relation to turbulators can be found in Bunker and Bailey (2001), Heneka et al (2011), Agata et al (2012) and Klavetter et al (2016) investigating the influence of the cooling hole position relative to the turbulator and the shape of the ribs on the discharge coefficient and film cooling effectiveness. Thurman and Poinsatte (2001) and Kunze and Vogeler (2013) investigated the internal heat transfer for 90°r ibs and revealed the position of cooling holes next to the upstream rib as superior to middle and downstream position.…”
Section: Introductionmentioning
confidence: 99%
“…The relevance of these influences as well as favourable cooling hole positions in the rib segment are a matter of research interest. A detailed view on hole placement in relation to turbulators can be found in Bunker and Bailey (2001), Heneka et al (2011), Agata et al (2012) and Klavetter et al (2016) investigating the influence of the cooling hole position relative to the turbulator and the shape of the ribs on the discharge coefficient and film cooling effectiveness. Thurman and Poinsatte (2001) and Kunze and Vogeler (2013) investigated the internal heat transfer for 90° ribs and revealed the position of cooling holes next to the upstream rib as superior to middle and downstream position.…”
Section: Introductionmentioning
confidence: 99%