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Coanda flow characterization on base bleed configurations using global stability analysis
Publicated to:Aiaa Scitech 2019 Forum. - 2019-01-01 (), DOI: 10.2514/6.2019-0881
Authors: Martinez-Cava A; Valero E; De Vicente J; Paniagua G
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Abstract
� 2019 by German Aerospace Center (DLR). Published by the American Institute of Aeronautics and Astronautics, Inc. Base pressure control is often employed on drag reduction design, but the interaction of the jet with the base region flow topology can generate undesired or uncontrolled flow configurations. The ejected flow can drive pressure bifurcations at the trailing edge, that without a correct optimization can affect the aerodynamic performance of the system. The purpose of this work is to fully understand the physical mechanisms related with the use of injected base bleed employing global stability analysis and adjoint methodologies. Moreover, the results of the sensitivity analysis are used to identify the regions more receptive to passive and active flow control methodologies. This work has a particular relevance in turbine research, where coolant flow is ejected at the trailing edge to ensure an adequate thermal protection of the blade and the downstream turbine stages.
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Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2025-07-15:
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- Scopus: 3
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Leadership analysis of institutional authors
This work has been carried out with international collaboration, specifically with researchers from: United States of America.
There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (MARTINEZ-CAVA AGUILAR, ALEJANDRO) .