2017
DOI: 10.1016/j.expthermflusci.2017.03.030
|View full text |Cite
|
Sign up to set email alerts
|

Upstream wake effect on flow and heat transfer characteristics at an endwall of first-stage blade of a gas turbine

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1

Citation Types

0
2
1

Year Published

2018
2018
2024
2024

Publication Types

Select...
7
1

Relationship

0
8

Authors

Journals

citations
Cited by 21 publications
(4 citation statements)
references
References 34 publications
0
2
1
Order By: Relevance
“…13(e) is the reduction of endwall HTC near the suction side. It is contradictory to the knowledge obtained in experiments of linear cascade with moving bars (Park et al, 2014;Choi et al, 2017) where endwall heat transfer demonstrates high HTC in the SS and hub endwall corner because of the influence of passage vortex. Since there are no direct corresponding experiment data available to validate our simulation, we referred a similar computation case of the E 3 HP turbine stage by El-Gabry (2010), who validated their computation method through indirect comparison with other available test data.…”
Section: Sscontrasting
confidence: 94%
See 1 more Smart Citation
“…13(e) is the reduction of endwall HTC near the suction side. It is contradictory to the knowledge obtained in experiments of linear cascade with moving bars (Park et al, 2014;Choi et al, 2017) where endwall heat transfer demonstrates high HTC in the SS and hub endwall corner because of the influence of passage vortex. Since there are no direct corresponding experiment data available to validate our simulation, we referred a similar computation case of the E 3 HP turbine stage by El-Gabry (2010), who validated their computation method through indirect comparison with other available test data.…”
Section: Sscontrasting
confidence: 94%
“…Similar models of stator/rotor ratio of 1:2 are used by in Simone et al (2012) and Wang et al (2017) which is equivalent to reduce half the wake passing frequency. However, Park et al (2014) and Choi et al (2017) revealed that the time-averaged HTC on endwall surface is directly connected with the Strouhal number which is proportional to the wake bar moving frequency.…”
Section: Introductionmentioning
confidence: 99%
“…11(a)). In the experimental work by Choi et al (2017), they also found that sharper inlet velocity profile generated lower overall heat transfer coefficients on the endwall. In addition to the reduced heat transfer levels by the inlet skew, the heat transfer patterns along the pressure side of the passage are changed by the inlet skew as well, especially for the case of r=0.61.…”
Section: Figure 9: Instantaneous and Time-averaged Pressure On Endwal...mentioning
confidence: 92%
“…Their results showed that film cooling was affected by the passage vortex (PV), thus improving the cooling performance of the endwall, close to the SS. Choi et al [6] carried out experimental and numerical research on an endwall with a first-stage blade in a turbine cascade. They found that the heat transfer of the endwall corresponded to the distribution of secondary flows.…”
Section: Introductionmentioning
confidence: 99%