Matches in SemOpenAlex for { <https://semopenalex.org/work/W2024426501> ?p ?o ?g. }
Showing items 1 to 69 of
69
with 100 items per page.
- W2024426501 abstract "Single-stage high-pressure turbines often operate in the transonic regime, resulting in strong shock interactions between the vanes and the rotor blades. With the present study, a Multi-Objective Optimization is applied to the redesign of a transonic vane. The objective of the steady-flow optimization is to attenuate the propagation of shock waves downstream of the vane, while reducing the vane losses. Computation of the resulting unsteady forcing on the rotor is performed to validate the reduction in high-cycle fatigue risk. This first part presents the optimization code developed at the von Karman Institute. An evolutionary optimization strategy is applied with a differential evolution algorithm to address multi-objective problems. Turbine vane design is performed using a parametrization of 2D sections and of the 3D stacking line. Aerodynamic performances are evaluated with the TRAF solver considering robust mesh generations. Metamodels are investigated to provide a fast approximation of the Navier-Stokes computation. A methodology is proposed to assess the accuracy and robustness of the metamodel prediction, i.e. to evaluate the metamodel training effectiveness. The second part of this paper targets at the application of the optimization technique to the transonic turbine vane design. The objective is to reduce the downstream pitchwise static pressure distortion, with no increase of vane losses. The operating conditions are an isentropic exit Mach number of 1.2 and an outlet angle of −74 degree. The methodology includes a 2D section steady-flow optimization design at mid-span. Optimal airfoil passages present a convergent-divergent contraction channel that reduces the trailing edge shock system propagation. Validation of the geometry with the computation of the unsteady force response on the rotor confirms a reduction in high cycle fatigue risk. A multi-point optimization highlights the conflict between reducing the stator/rotor interaction and limiting the losses at off-design. A 3D optimization is finally performed considering simultaneously the lean and 2D section adaptation and enables further improvements of stator/rotor interaction and losses." @default.
- W2024426501 created "2016-06-24" @default.
- W2024426501 creator A5023901711 @default.
- W2024426501 creator A5038253130 @default.
- W2024426501 creator A5039833838 @default.
- W2024426501 date "2010-10-10" @default.
- W2024426501 modified "2023-10-16" @default.
- W2024426501 title "Attenuation of Vane Distortion in a Transonic Turbine Using Optimization Strategies: Part I—Methodology" @default.
- W2024426501 doi "https://doi.org/10.1115/gt2010-22370" @default.
- W2024426501 hasPublicationYear "2010" @default.
- W2024426501 type Work @default.
- W2024426501 sameAs 2024426501 @default.
- W2024426501 citedByCount "6" @default.
- W2024426501 countsByYear W20244265012012 @default.
- W2024426501 countsByYear W20244265012014 @default.
- W2024426501 countsByYear W20244265012018 @default.
- W2024426501 crossrefType "proceedings-article" @default.
- W2024426501 hasAuthorship W2024426501A5023901711 @default.
- W2024426501 hasAuthorship W2024426501A5038253130 @default.
- W2024426501 hasAuthorship W2024426501A5039833838 @default.
- W2024426501 hasConcept C103838597 @default.
- W2024426501 hasConcept C104317684 @default.
- W2024426501 hasConcept C112124176 @default.
- W2024426501 hasConcept C127413603 @default.
- W2024426501 hasConcept C13393347 @default.
- W2024426501 hasConcept C146978453 @default.
- W2024426501 hasConcept C154945302 @default.
- W2024426501 hasConcept C1633027 @default.
- W2024426501 hasConcept C165231844 @default.
- W2024426501 hasConcept C185592680 @default.
- W2024426501 hasConcept C2775924081 @default.
- W2024426501 hasConcept C2778449969 @default.
- W2024426501 hasConcept C41008148 @default.
- W2024426501 hasConcept C47446073 @default.
- W2024426501 hasConcept C55493867 @default.
- W2024426501 hasConcept C63479239 @default.
- W2024426501 hasConceptScore W2024426501C103838597 @default.
- W2024426501 hasConceptScore W2024426501C104317684 @default.
- W2024426501 hasConceptScore W2024426501C112124176 @default.
- W2024426501 hasConceptScore W2024426501C127413603 @default.
- W2024426501 hasConceptScore W2024426501C13393347 @default.
- W2024426501 hasConceptScore W2024426501C146978453 @default.
- W2024426501 hasConceptScore W2024426501C154945302 @default.
- W2024426501 hasConceptScore W2024426501C1633027 @default.
- W2024426501 hasConceptScore W2024426501C165231844 @default.
- W2024426501 hasConceptScore W2024426501C185592680 @default.
- W2024426501 hasConceptScore W2024426501C2775924081 @default.
- W2024426501 hasConceptScore W2024426501C2778449969 @default.
- W2024426501 hasConceptScore W2024426501C41008148 @default.
- W2024426501 hasConceptScore W2024426501C47446073 @default.
- W2024426501 hasConceptScore W2024426501C55493867 @default.
- W2024426501 hasConceptScore W2024426501C63479239 @default.
- W2024426501 hasLocation W20244265011 @default.
- W2024426501 hasOpenAccess W2024426501 @default.
- W2024426501 hasPrimaryLocation W20244265011 @default.
- W2024426501 hasRelatedWork W1582710448 @default.
- W2024426501 hasRelatedWork W1888632148 @default.
- W2024426501 hasRelatedWork W2056989230 @default.
- W2024426501 hasRelatedWork W2175355539 @default.
- W2024426501 hasRelatedWork W2320097410 @default.
- W2024426501 hasRelatedWork W2783637721 @default.
- W2024426501 hasRelatedWork W309111968 @default.
- W2024426501 hasRelatedWork W3122302600 @default.
- W2024426501 hasRelatedWork W4231774860 @default.
- W2024426501 hasRelatedWork W74869541 @default.
- W2024426501 isParatext "false" @default.
- W2024426501 isRetracted "false" @default.
- W2024426501 magId "2024426501" @default.
- W2024426501 workType "article" @default.