Abstract
The leakage flow near the tip of rotor and stator blade rows of an axial-flow turbinestage imposes significant thermal loads on such blades. It is also responsible for theaerodynamic losses therein. This leakage flow is induced mainly by the pressuredifference across the tip section for both the rotor and the stator. Most research hashitherto focused on the effect of varying the tip clearance ratio, but a rather littleamount of published work on axial gap effect is found. This paper presents theoutcome of scanning the available research on tip clearance and axial gapparameters and effects of their variation on the flow characteristics andperformance of a typical axial–flow turbine stage. The prime objective here is tothrow some light upon the state of the art in this area of research. The surveyedliterature is discussed and criticized, giving suggestions for further investigation ofthe problem.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: The Egyptian International Journal of Engineering Sciences and Technology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
