2009
Pavesi, Giorgio; Cavazzini, Giovanna; Rossetti, Antonio; Ardizzon, Guido
A procedure for the design of radial cascade diffusers based on the maximum ratio between flow deflection and total pressure loss coefficient Journal Article
In: Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, vol. 223, iss. 7, pp. 849-861, 2009, ISSN: 09576509.
Abstract | Links | BibTeX | Tags: Diffuser, Diffuser, Diffuser performance, Diffusion Factor, Radial cascade, Setting angle, Vaned diffuser
@article{Pavesi2009d,
title = {A procedure for the design of radial cascade diffusers based on the maximum ratio between flow deflection and total pressure loss coefficient},
author = {Giorgio Pavesi and Giovanna Cavazzini and Antonio Rossetti and Guido Ardizzon},
doi = {10.1243/09576509JPE643},
issn = {09576509},
year = {2009},
date = {2009-01-01},
urldate = {2009-01-01},
journal = {Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy},
volume = {223},
issue = {7},
pages = {849-861},
abstract = {A design procedure of radial cascade diffusers for incompressible flow, based on the maximum ratio between the flow deflection and the total pressure loss coefficient, is proposed. Toachieve such a result,numerical investigationswere carried outonseveral different diffusers at design and off-design operating conditions. Four space chord ratios, with seven blades and nine outletflowangleswere considered.For each diffuser, theoptimumperformanceparameterswere correlated to the incoming flow angle and the design variables of the aerofoil cascade. Reynolds number and mean camberline influence were also analysed. Design charts were then produced in order to attain an efficient preliminary design of aerodynamic diffusers without resorting to time-consuming approaches. Finally, auxiliary charts were proposed for predicting the diffuser performance at off-design operating conditions.},
keywords = {Diffuser, Diffuser, Diffuser performance, Diffusion Factor, Radial cascade, Setting angle, Vaned diffuser},
pubstate = {published},
tppubtype = {article}
}
A design procedure of radial cascade diffusers for incompressible flow, based on the maximum ratio between the flow deflection and the total pressure loss coefficient, is proposed. Toachieve such a result,numerical investigationswere carried outonseveral different diffusers at design and off-design operating conditions. Four space chord ratios, with seven blades and nine outletflowangleswere considered.For each diffuser, theoptimumperformanceparameterswere correlated to the incoming flow angle and the design variables of the aerofoil cascade. Reynolds number and mean camberline influence were also analysed. Design charts were then produced in order to attain an efficient preliminary design of aerodynamic diffusers without resorting to time-consuming approaches. Finally, auxiliary charts were proposed for predicting the diffuser performance at off-design operating conditions.
