Murugesan, K and Ramamurthy, S (1995) Inception of Stall in a Centrifugal Impeller. In: 2nd National Conference on Air Breathing Engines, 1995, Melbourne, Australia. (Submitted)
Full text available as:![[img]](http://nal-ir.nal.res.in/style/images/fileicons/application_pdf.png) | PDF Download (975Kb) |
Abstract
Measurements at outlet of a centrifugal impeller show spatial and temporal variations of flow velocity. There is pitch wise symmetry and time wise repetitiveness with impeller rotation at large flow coefficients. This flow structure undergoes changes as the flow coefficient is reduced from a large value, by throttling, towards stall. A newly evolved parameter characterizes these changes and helps to identify regions of instability and rotating stall. The correlation between this instability parameter and flow coefficient is very clear and quite good. The magnitude of this parameter value could be used to identify the inception of stall in centrifugal impellers so as to activate control mechanism
| Item Type: | Conference or Workshop Item (Lecture) |
|---|---|
| Uncontrolled Keywords: | Impellers;Centrifugal compressors;rotating stalls;Flow velocity;Velocity distribution |
| Subjects: | AERONAUTICS > Aeronautics (General) AERONAUTICS > Aircraft Propulsion and Power |
| Division/Department: | Propulsion Division, Propulsion Division |
| Depositing User: | Dr S Ramamurthy |
| Date Deposited: | 10 Aug 2010 10:02 |
| Last Modified: | 10 Aug 2010 10:02 |
| URI: | http://nal-ir.nal.res.in/id/eprint/8923 |
Actions (login required)
| View Item |
