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A Centrifugal Fan Test Bench for Validation Data at Off-Design Conditions

Pritz, Balazs; Walter, Johannes; Gabi, Martin

Abstract:
Nowadays with eco directives becoming more strictly the efficiency improvement of turbomachinery is getting more important than ever. Relieving experimental investigations computational fluid dynamics (CFD) could be the major tool to optimize the geometry of a turbomachinery, as it can provide a detailed insight into the flow within the impeller. In order to have reliable results from CFD simulations a validation of the acquired simulation tool and the composed numerical model is crucial. Especially in off-design conditions it is very challenging for CFD to predict strongly whirling, highly unsteady flow fields correctly.
In the present paper the construction of a test bench for a centrifugal fan with spiral casing is described and the first results are presented. The main goal in constructing the test case is to provide extensive validation data not only in the design operation point but for off-design conditions also. The geometry was designed based on classical design guidelines. It is close to industrial centrifugal fans however an additional aim was, to provide a geometry which allows an acceptable mesh generation effort and high mesh quality. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000124453
Veröffentlicht am 12.10.2020
Cover der Publikation
Zugehörige Institution(en) am KIT Fachgebiet Strömungsmaschinen (FSM)
Publikationstyp Proceedingsbeitrag
Publikationsdatum 20.04.2018
Sprache Englisch
Identifikator KITopen-ID: 1000124453
Erschienen in Proceedings of the International Conference on Fan Noise, Aerodynamics, Applications and Systems (fan2018), Darmstadt 2018
Veranstaltung International Conference on Fan Noise, Aerodynamics, Applications and Systems (2018), Darmstadt, Deutschland, 18.04.2018 – 20.04.2020
Verlag CETIAT, Villeurbanne, F
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