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Paper Information

Journal:   AEROSPACE MECHANICS JOURNAL   FALL 2018 , Volume 14 , Number 3 (53) ; Page(s) 41 To 54.
 
Paper: 

NUMERICAL ANALYSIS OF FILM-COOLING OVER THE ROTATING TURBINE BLADE USING LATERALLY-DIFFUSED HOLE

 
 
Author(s):  MOEINI A.H., RAJABI ZARGARABADI M.*
 
* MECHANICAL ENGINEERING DEPARTMENT, SEMNAN UNIVERSITY
 
Abstract: 

In this paper, the optimization of the film cooling effectiveness over a rotating blade is performed using the laterally diffused hole. The three-dimensional numerical simulation of blade cooling is performed using RNG k-? turbulence model for three rotating speeds, i.e., 0, 300 and 500 rpm. Results show that the film trajectory always inclines due to the Coriolis force acts in the centrifugal direction. The film cooling deflection becomes greater with increasing the rotational speed. The comparisons of results show that, for the laterally diffused hole, the mixing of the hot gas flow with the injected coolant flow is less that the cylindrical hole. Applying the laterally diffused hole consequences the increase of film cooling effectiveness by the 39, 38 and 35 percent at the rotating speeds of 0,300 and 500 rpm respectively.

 
Keyword(s): NUMERICAL SIMULATION, FILM-COOLING, TURBINE BLADE, LATERALLY-DIFFUSED HOLE, ROTATION SPEED
 
 
References: 
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Click to Cite.
APA: Copy

MOEINI, A., & RAJABI ZARGARABADI, M. (2018). NUMERICAL ANALYSIS OF FILM-COOLING OVER THE ROTATING TURBINE BLADE USING LATERALLY-DIFFUSED HOLE. AEROSPACE MECHANICS JOURNAL, 14(3 (53) ), 41-54. https://www.sid.ir/en/journal/ViewPaper.aspx?id=569299



Vancouver: Copy

MOEINI A.H., RAJABI ZARGARABADI M.. NUMERICAL ANALYSIS OF FILM-COOLING OVER THE ROTATING TURBINE BLADE USING LATERALLY-DIFFUSED HOLE. AEROSPACE MECHANICS JOURNAL. 2018 [cited 2021May11];14(3 (53) ):41-54. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=569299



IEEE: Copy

MOEINI, A., RAJABI ZARGARABADI, M., 2018. NUMERICAL ANALYSIS OF FILM-COOLING OVER THE ROTATING TURBINE BLADE USING LATERALLY-DIFFUSED HOLE. AEROSPACE MECHANICS JOURNAL, [online] 14(3 (53) ), pp.41-54. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=569299.



 
 
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