publication . Article . 2016

Study of Flow Patterns in Radial and Back Swept Turbine Rotor under Design and Off-Design Conditions

S. P. Shah; S. A. Channiwala; D. B. Kulshreshtha; Gaurang Chaudhari;
Open Access English
  • Published: 01 Jan 2016 Journal: Journal of Applied Fluid Mechanics (issn: 1735-3572, Copyright policy)
  • Publisher: Isfahan University of Technology
Abstract
Paper details the numerical investigation of flow patterns in a conventional radial turbine compared with a back swept design for same application. The blade geometry of a designed turbine from a 25kW micro gas turbine was used as a baseline. A back swept blade was subsequently designed for the rotor, which departed from the conventional radial inlet blade angle to incorporate up to 25° inlet blade angle. A comparative numerical analysis between the two geometries is presented. While operating at lower than optimum velocity ratios (U/C), the 25° back swept blade offers significant increases in efficiency. In turbocharger since the turbine typically experiences l...
Subjects
free text keywords: Gas turbine impeller; Numerical simulation., Mechanical engineering and machinery, TJ1-1570
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