Design and Evaluation of a Flow Capturing Device for a High-Speed Wind Tunnel

Mattia Graiff, Marian Staggl, Emil Göttlich, Christian Wakelam

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review


Wind tunnel testing belongs to the most significant aspects of the technical development process. In order to improve the test environment conditions and open the possibility of closed loop operation, a flow capturing device is developed for a highspeed wind tunnel previously exhausting to ambient. The highspeed wind tunnel is used in conjunction with annular sector cascade test rigs to evaluate the performance of intermediate turbine ducts. In the presented paper, a modular design approach for the flow capturing device is presented; particular attention is reserved to optimal integration within the pre-existing test environment and to an efficient sealing strategy. Computational results provide the basis for the correct sizing of the device; the aerodynamic effects induced by the flow capturing device down-stream of an annular sector cascade rig are shown to bear no influence on the quality of the test data. The presented results of several tests conducted under a wide range of conditions confirm the viability of the developed flow capturing device. The improvements to the pre-existing experimental setup achieved with the addition of the flow capturing device are furthermore presented in this paper, focusing on the obtained reduction in sound pressure and temperature level within the test facilities.

Original languageEnglish
Title of host publicationTurbomachinery - Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions
ISBN (Electronic)9780791884928
Publication statusPublished - 2021
EventASME Turbo Expo 2021: Turbomachinery Technical Conference and Exposition: GT 2021 - Virtual, Online, United States
Duration: 7 Jun 202111 Jun 2021

Publication series

NameProceedings of the ASME Turbo Expo


ConferenceASME Turbo Expo 2021: Turbomachinery Technical Conference and Exposition
Abbreviated titleASME Turbo Expo 2021
Country/TerritoryUnited States
CityVirtual, Online

ASJC Scopus subject areas

  • Engineering(all)


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