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Journal Articles
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2024, 146(7): 071003.
Paper No: TURBO-23-1197
Published Online: March 18, 2024
Journal Articles
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2024, 146(7): 071004.
Paper No: TURBO-23-1291
Published Online: March 18, 2024
Journal Articles
Accepted Manuscript
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach.
Paper No: TURBO-23-1120
Published Online: March 18, 2024
Journal Articles
Accepted Manuscript
Yuan Fang, Yaomin Zhao, Harshal D. Akolekar, Andrew Ooi, Richard Sandberg, Roberto Pacciani, Michele Marconcini
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach.
Paper No: TURBO-23-1139
Published Online: March 18, 2024
Image
in UHBR Open-Test Case Fan ECL5/CATANA: Non-Linear Analysis of Non-Synchronous Blade Vibration at Part-Speed Conditions
> Journal of Turbomachinery
Published Online: March 18, 2024
Fig. 1 Full-annulus computational domain including inlet, intake, fan, and convergent/divergent nozzle More about this image found in Full-annulus computational domain including inlet, intake, fan, and converg...
Image
in UHBR Open-Test Case Fan ECL5/CATANA: Non-Linear Analysis of Non-Synchronous Blade Vibration at Part-Speed Conditions
> Journal of Turbomachinery
Published Online: March 18, 2024
Fig. 2 Detailed visualization of structured mesh for ( a ) intake, ( b ) blade-to-blade section, and ( c ) normalized modal displacement amplitude of Mode-2 More about this image found in Detailed visualization of structured mesh for ( a ) intake, ( b ) blade-to-...
Image
in UHBR Open-Test Case Fan ECL5/CATANA: Non-Linear Analysis of Non-Synchronous Blade Vibration at Part-Speed Conditions
> Journal of Turbomachinery
Published Online: March 18, 2024
Fig. 3 Mass-averaged fan characteristics at 80% of the design speed from steady and unsteady simulations: fan-only total pressure ratio and isentropic efficiency More about this image found in Mass-averaged fan characteristics at 80% of the design speed from steady an...
Image
in UHBR Open-Test Case Fan ECL5/CATANA: Non-Linear Analysis of Non-Synchronous Blade Vibration at Part-Speed Conditions
> Journal of Turbomachinery
Published Online: March 18, 2024
Fig. 4 Contours at 95%H of relative Mach number from ( a ) RANS simulation and ( b ) time-average URANS simulation, and ( c ) fan total pressure ratio profile at x = 0.05 m downstream of the fan for OP-3 More about this image found in Contours at 95%H of relative Mach number from ( a ) RANS simulation and ( b...
Image
in UHBR Open-Test Case Fan ECL5/CATANA: Non-Linear Analysis of Non-Synchronous Blade Vibration at Part-Speed Conditions
> Journal of Turbomachinery
Published Online: March 18, 2024
Fig. 5 Aerodynamic disturbances near OP-3 at 80% of design speed: ( a ) snapshot of vortex structures, isocontour at Q-criterion = 2.10 7 , values blanked above 99%H and ( b ) temporal evolution of a blade-to-blade view at 95%H contoured by axial velocity [ 15 ]. More about this image found in Aerodynamic disturbances near OP-3 at 80% of design speed: ( a ) snapshot o...
Image
in UHBR Open-Test Case Fan ECL5/CATANA: Non-Linear Analysis of Non-Synchronous Blade Vibration at Part-Speed Conditions
> Journal of Turbomachinery
Published Online: March 18, 2024
Fig. 6 Spectrum analysis of pressure fluctuations in the rotating frame of reference measured at 80%H, 15% axial chord upstream of the leading edge at OP-3: ( a ) frequency spectrogram during the transient simulation and ( b ) frequency spectrum over the last seven converged rotations, peak value ... More about this image found in Spectrum analysis of pressure fluctuations in the rotating frame of referen...
Image
in UHBR Open-Test Case Fan ECL5/CATANA: Non-Linear Analysis of Non-Synchronous Blade Vibration at Part-Speed Conditions
> Journal of Turbomachinery
Published Online: March 18, 2024
Fig. 7 Frequency spectra of pressure fluctuations in the rotating frame of reference at 80%H, 15% axial chord upstream of the leading edge computed with the last seven converged rotations for OP-1, OP-2, and OP-3 More about this image found in Frequency spectra of pressure fluctuations in the rotating frame of referen...
Image
in UHBR Open-Test Case Fan ECL5/CATANA: Non-Linear Analysis of Non-Synchronous Blade Vibration at Part-Speed Conditions
> Journal of Turbomachinery
Published Online: March 18, 2024
Fig. 8 Transient aerodynamic damping from FSI simulations with harmonic blade vibration imposed on Mode-2/ND + 4 for OP-1, OP-2, and OP-3 More about this image found in Transient aerodynamic damping from FSI simulations with harmonic blade vibr...
Image
in UHBR Open-Test Case Fan ECL5/CATANA: Non-Linear Analysis of Non-Synchronous Blade Vibration at Part-Speed Conditions
> Journal of Turbomachinery
Published Online: March 18, 2024
Fig. 9 Average aerodynamic damping and fluctuations as a function of nodal diameter for OP-1, OP-2, and OP-3 More about this image found in Average aerodynamic damping and fluctuations as a function of nodal diamete...
Image
in UHBR Open-Test Case Fan ECL5/CATANA: Non-Linear Analysis of Non-Synchronous Blade Vibration at Part-Speed Conditions
> Journal of Turbomachinery
Published Online: March 18, 2024
Fig. 10 Frequency spectra of pressure fluctuations in the rotating frame of reference at 80%H near the leading edge from FSI simulations with blade oscillations on Mode-2/ND + 4 for ( a ) OP-1, ( b ) OP-2, and ( c ) OP-3 computed with the last 30 converged periods of blade vibration More about this image found in Frequency spectra of pressure fluctuations in the rotating frame of referen...
Image
in UHBR Open-Test Case Fan ECL5/CATANA: Non-Linear Analysis of Non-Synchronous Blade Vibration at Part-Speed Conditions
> Journal of Turbomachinery
Published Online: March 18, 2024
Fig. 11 Transient aerodynamic damping from FSI simulations with harmonic blade vibration imposed on Mode-2/ND + 3 and Mode-2/ND + 4 for OP-3 More about this image found in Transient aerodynamic damping from FSI simulations with harmonic blade vibr...
Image
in UHBR Open-Test Case Fan ECL5/CATANA: Non-Linear Analysis of Non-Synchronous Blade Vibration at Part-Speed Conditions
> Journal of Turbomachinery
Published Online: March 18, 2024
Fig. 12 Frequency spectrum of pressure fluctuations in the rotating frame of reference at 80%H near the leading edge from FSI simulations with blade oscillations on Mode-2/ND + 3 for OP-3 More about this image found in Frequency spectrum of pressure fluctuations in the rotating frame of refere...
Image
in UHBR Open-Test Case Fan ECL5/CATANA: Non-Linear Analysis of Non-Synchronous Blade Vibration at Part-Speed Conditions
> Journal of Turbomachinery
Published Online: March 18, 2024
Fig. 13 Local work and unsteady pressure at OP-3 for Mode-2/ND + 3, amplitude 0.25 mm at t = 60 T vib , Mode-2/ND + 4 at stable cycle t = 86 T vib , and Mode-2/ND + 4 at unstable cycle t = 90 T vib (see Fig. 11 ) More about this image found in Local work and unsteady pressure at OP-3 for Mode-2/ND + 3, amplitude 0.25 ...
Image
in UHBR Open-Test Case Fan ECL5/CATANA: Non-Linear Analysis of Non-Synchronous Blade Vibration at Part-Speed Conditions
> Journal of Turbomachinery
Published Online: March 18, 2024
Fig. 14 Temporal evolution of a blade-to-blade view at 95%H contoured by entropy fluctuations at OP-3 with blade oscillation on Mode-2/ND + 4 at 80% of design speed: lock-in between small-scale disturbances and structural vibration pattern More about this image found in Temporal evolution of a blade-to-blade view at 95%H contoured by entropy fl...
Image
in UHBR Open-Test Case Fan ECL5/CATANA: Non-Linear Analysis of Non-Synchronous Blade Vibration at Part-Speed Conditions
> Journal of Turbomachinery
Published Online: March 18, 2024
Fig. 15 Transient aerodynamic damping from FSI simulation with blade oscillation imposed on Mode-2/ND + 4 with maximal amplitude of a vib = 0.25 mm and a vib = 0.50 mm at OP-3 More about this image found in Transient aerodynamic damping from FSI simulation with blade oscillation im...
Image
in UHBR Open-Test Case Fan ECL5/CATANA: Non-Linear Analysis of Non-Synchronous Blade Vibration at Part-Speed Conditions
> Journal of Turbomachinery
Published Online: March 18, 2024
Fig. 16 Frequency spectra of pressure fluctuations in the rotating frame of reference at 80%H near the leading edge from FSI simulations with blade oscillations on Mode-2/ND + 4 with a vib = 0.25 mm and a vib = 0.50 mm at OP-3 More about this image found in Frequency spectra of pressure fluctuations in the rotating frame of referen...
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