Evaluation of Unsteady CFD Methods by Their Application to a Transonic Propfan Stage

TitleEvaluation of Unsteady CFD Methods by Their Application to a Transonic Propfan Stage
Publication TypeConference Paper
Year of Publication2001
AuthorsSchmitt S, Eulitz F, Wallscheid L, Arnone A, Marconcini M
Conference NameASME Turbo Expo 2001: Power for Land, Sea, and Air
Volume1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery
NumberPaper No. 2001-GT-0310
PaginationV001T03A014; 12 pages
Date Published06/2001
Conference LocationNew Orleans, LA, USA, 4-7 June
ISBN Number978-0-7918-7850-7
Other NumbersScopus 2-s2.0-84905757565
KeywordsPropfan, Unsteady CFD Methods

The accuracy in predicting the unsteady aerodynamic bladerow-interaction of two state-of-the-art Navier-Stokes codes is evaluated within the current paper. The general flow features of the test case – a transonic research propfan stage – are described in brief as far as necessary to understand the detailed comparisons. The calculated unsteady velocity and flow angle distributions at various axial planes of the stage are compared to data from unsteady laser measurements. The general flow features of the propfan are very well reproduced by the numerical methods and a good agreement is also obtained in comparison to the measured data. One important outcome of the comparison is the good agreement of both numerical methods with the unsteady fluctuations measured in the experiment.

Refereed DesignationRefereed