Characterization of a Twin-Entry Radial Turbine under Pulsatile Flow Condition
Joint Authors
Ghenaiet, Adel
Cerdoun, Mahfoudh
Source
International Journal of Rotating Machinery
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-06-12
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
In automotive applications radial gas turbines are commonly fitted with a twin-entry volute connected to a divided exhaust manifold, ensuring a better scavenge process owing to less interference between engines’ cylinders.
This paper is concerned with the study of the unsteady performances related to the pulsating flows of a twin-entry radial turbine in engine-like conditions and the hysteresis-like behaviour during the pulses period.
The results show that the aerodynamic performances deviate noticeably from the steady state and depend mainly on the time shifting between the actual output power and the isentropic power, which is distantly related to the apparent length.
The maximum of efficiency and output shaft power are accompanied by low entropy generation through the shroud entry side, and their instantaneous behaviours tend to follow mainly the inlet total pressure curve.
As revealed a billow is created by the interaction between the main flow and the infiltrated flow, affecting the flow incidence at rotor entry and producing high losses.
American Psychological Association (APA)
Cerdoun, Mahfoudh& Ghenaiet, Adel. 2016. Characterization of a Twin-Entry Radial Turbine under Pulsatile Flow Condition. International Journal of Rotating Machinery،Vol. 2016, no. 2016, pp.1-15.
https://search.emarefa.net/detail/BIM-1107019
Modern Language Association (MLA)
Cerdoun, Mahfoudh& Ghenaiet, Adel. Characterization of a Twin-Entry Radial Turbine under Pulsatile Flow Condition. International Journal of Rotating Machinery No. 2016 (2016), pp.1-15.
https://search.emarefa.net/detail/BIM-1107019
American Medical Association (AMA)
Cerdoun, Mahfoudh& Ghenaiet, Adel. Characterization of a Twin-Entry Radial Turbine under Pulsatile Flow Condition. International Journal of Rotating Machinery. 2016. Vol. 2016, no. 2016, pp.1-15.
https://search.emarefa.net/detail/BIM-1107019
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1107019