... order reduction method based on singular value decomposition. It extracts modes and eigenvalues of a nonlinear, dynamic system. DMD is considered an ideal combination of proper orthogonal decomposition in space and Fourier transform in time. The numerical data were generated with a CFD calculation based...

... satisfactory. Due to the small size of the fan, no significant differences were noticed in the speed profiles for the two rotor variants. fan CFD cyclorotor experiment Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam...

... representative and highly unsteady combustor outflows are considered, or advanced and more time-consuming methods shall be adopted. Keywords: Gas turbine, Combustor, Turbine, Interaction, Swirling flow, CFD, RANS, Experiments, HTC, PSP. NOMENCLATURE C Concentration p Pitch [mm] P Pressure [Pa] q Heat flux T...

.... Keywords: Gas turbine, Combustor, Turbine, Interaction, CFD, RANS, SBES. NOMENCLATURE Acronyms C2+ Hydrocarbons with two or more carbon atoms CDC Compressor Discharge Chamber CFL Courant-Friedrichs-Lewy FGM Flamelet Generated Manifols DES Detached Eddy Simulation FETT First Engine To Test FTT Flow Through...

... experimental work cooling systems internal flow CFD data analysis turbulence visualization Abstract Computational Fluid Dynamics (CFD) is the standard tool in the turbomachinery industry to analyze and optimize internal cooling systems of turbine components, but the code applied has...

.... An approach to evaluate the maximum pressure capacity of a hydraulic seal is therefore introduced in this work. Building on previously published studies, this paper presents results of a 2D numerical study into the performance of a simplified hydraulic seal geometry. This paper reports a numerical CFD...

... on the performance of both the TVF and the LPT. aerodynamics CFD inlet distortion inlet distribution low-pressure turbine off-design operating point turbine vane frame turbomachinery Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022...

... Abstract An investigation is presented which compares the predicted stall points and underlying flow fields for single-passage and three-passage CFD geometries of a transonic axial compressor rotor. The two cases are run using the commercial CFD code ANSYS CFX and compared to experimental data...

... to experimental data gathered by Cherry et al. and current numerical best practices. combustor turbulence GEKO prediffuser CFD Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam, The Netherlands GT2022-83376 PREDICTING SEPARATED...

... rotor blades in the system. One of the inputs to this code is the modal force obtained using unsteady CFD in the paper’s first section. The in-house code is based on the FMM, which couples both aero and structural dynamics to predict the blade responses. The key conclusions from this study were: 1...

... from the impeller stall passage. centrifugal compressor vaneless diffuser rotating stall CFD DES Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam, The Netherlands GT2022-82861 INTERACTION MECHANISM OF IMPELLER...

... responses of the individual rotor blades in the system. One of the inputs to this code is the modal force obtained using unsteady CFD. The in-house code is based on the FMM, which couples both aerodynamic and structural dynamics to predict the blade responses. The key conclusions from this study were: 1...

... the MOGAII Genetic Algorithm (GA) and Computational Fluid Dynamics (CFD) to generate a novel optimized diffuser profile out of nearly 200 geometric shapes. A case for each of the bare turbine and the diffuser-augmented turbine were modeled using 3-dimensional Reynolds Averaged Navier Stokes equations (RANS...

... control strategy can deviate the wake much better than typical single-control methods. An optimization analysis is also provided to find the most appropriate yaw angles and tilt angles of the wind turbines subject to varying wind speeds. wind turbine wake-control CFD power generation yaw angle...

... method vs. the time-marching solution. harmonic balance multi frequency harmonic analysis CFD aeromechanics turbomachinery turbines Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam, The Netherlands GT2022-79393...

... CFD flow simulations were performed in order to evaluate all the specified configurations aiming to find improvements on compressor stall margin. Investigations on the compressor flow characteristics were realized and the stall margin variations were determined. The numerical simulations were...

... compressors turbulence modeling CFD axial casing grooves Reynolds stresses Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam, The Netherlands GT2022-82258 EVOLUTION OF TURBULENCE AND ITS MODIFICATION BY AXIAL CASING GROOVES...

.... velocity profile Tesla turbine semi-analytical method CFD Buckingham-Π theorem Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam, The Netherlands GT2022-83879 IMPROVEMENT OF THE SEMI-ANALYTICAL MODEL OF A TESLA DISC TURBINE...

.... In order to acquire the desired understanding, experimental data is presented to validate the Computational Fluid Dynamics (CFD) model and a detailed numerical investigation is presented to explain the changes in the flow field within the radially reduced designs. The study focuses on low flow rate...

... centrifugal compressor volute CFD numerical analysis operating points reattachment modification Proceedings of ASME Turbo Expo 2022 Turbomachinery Technical Conference and Exposition GT2022 June 13-17, 2022, Rotterdam, The Netherlands GT2022-82426 A NUMERICAL INVESTIGATION ON THE INFLUENCE OF REYNOLDS...