Attività sperimentale e numerica per lo sviluppo di turbomacchine … · University of Genova...
Transcript of Attività sperimentale e numerica per lo sviluppo di turbomacchine … · University of Genova...
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
Attività sperimentale e numerica per lo sviluppo di
turbomacchine ad elevate prestazioni
Daniele Simoni
Dipartimento di Ingegneria Meccanica, Energetica, Gestionale e dei Trasporti
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
• Turbomachinery research group
• Participation at EU and National (PRIN) Research Projects
• Facilities, measuring and post-processing techniques
• Turbomachinery components design
• Recent Relevant Publications
Content
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
Research Group - Pietro Zunino - Professor of Fluid Machines and Turbomachinery - Marina Ubaldi - Professor of Gas Dynamics and Combustion - Giovanni Tanda - Professor of Applied Physics and Heat Transfer
- Andrea Cattanei – Associate Professor of Aeroacoustics and Fluid Machines - Daniele Simoni - Associate Professor of Aircraft Engines, Turbomachinery Design and Experimental Techniques for Fluid Machines - Francesca Satta - Associate Professor of Aeronautical Propulsion and Fluid Machines - Edward Canepa - Assistant Professor of Fluid Machines - Davide Lengani – Assistant Professor of Measuring Techniques for Aerodynamic Applications - Andrea Ghiglione Ph. D., Researcher, Facilities design and manufacturing expert -Carlo Costa, Dario Barsi, Gianluca Ricci Ph. D., Researcher, experts in modeling and optimization
- Roberto Guida - Ph. D. Student - Daniele Infantino - Ph. D. Student - Matteo Dellacasagrande - Ph. D. Student - Luca Baggetta - Ph. D. Student
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
Participation at EU Research Projects BRITE EURAM, "Time varying wake flow characteristics behind flat plates and turbine cascades". BRITE EURAM, TURMUNSFLAT "Turbulence modelling for unsteady flows in axial turbines”. BRITE EURAM, TRANSPRETURB "Implementation and further applications of refined transition prediction methods for turbomachinery and other aerodynamics flows". FP5, ICLEAC “Instability Control of Low Emission Aero-Engine Combustors”. FP6, AIDA "Aggressive Intermediate Duct Aerodynamics for Competitive and Environmentally Friendly Jet Engines". FP6, MUSCLES "Modelling of UnSteady Combustion in Low Emission Systems”. FP6, AITEB2 “Aerothermal Investigations on Turbine Endwalls and Blades”. FP6, TLC “Towards Lean Combustion”. FP6, VITAL, Large-scale integrating project (IP), “EnVIronmenTALly Friendly Aero Engine”. FP6, TATMo “Turbulence and Transition Modelling for Special Turbomachinery Applications”. FP7, TECC-AE “Technologies Enhancement for Clean Combustion in Aero-engines”. FP7, Large-scale integrating project (IP), E-BREAK “Engine Breakthrough Components and Subsystems “ FP7, CleanSky, I-TURB “Optimal High-Lift Turbine Blade Aero-Mechanical Design”
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
Facilities
• Wind Tunnel for Investigations of Ducts and Airfoils
• Wind Tunnels for Detailed Cascade Investigations • Single stage large scale Axial Research Turbine
• Two-Stage Axial Research Turbine
• Centrifugal Compressor Test Rig
• Semi-anechoic chamber
• Test rig for gas turbine secondary air systems and seal cavities investigations
• Wind Tunnels for Aerodynamic Investigations of Low-Emission Injection-Systems for
Aeroengine Applications • Combustion test rig
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
Measuring and post-processing techniques available in the Lab
Measurements thecniques • Directional miniature pressure probes, fast response miniature pressure transducers • 2-D and 3-D Hot-Wire and Multisensor Hot-Film Anemometry (HWA) • 2-D and 3-D Laser Doppler Velocimetry (LDV) • 2-D Phase Doppler Anemometer (PDA) • Particle Image Velocimetry, 3D Stereo-PIV • Time-Resolved Particle Image Velocimetry (TR-PIV, 5000 Hz) • Non intrusive techniques for high speed flows and combustion (Schlieren, Holographic
Interferometry, Planar Mie Scattering Technique, Planar Laser Induced Fluorescence) • IR Thermography and Thermochromic Liquid Crystals for thermal measurements
Advanced post-processing • Statistical and time domain analysis of unsteady flows • Conditional sampling and ensemble averaging techniques • Frequency domain analysis, wavelet transforms, Proper Ortogonal Decomposition (POD),
Dynamic Mode Decomposition (DMD) • Intermittency and turbulence structure detection techniques
0.00 0.02 0.04 0.06 0.08 0.10
t (s)
-20
0
20
40
60
v [
m/s
]
10 100 1000 10000
f (Hz)
1E-008
1E-007
1E-006
1E-005
1E-004
1E-003
1E-002
1E-001
1E+000
1E+001
po
we
r d
en
sit
y
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
Experimental activities on turbine blade design/analysis
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
Integration between different facilities
Flat plate analysis provide a detailed view and characterization of the basic phenomena driving the boundary layer evolution over the blade surfaces
Cascade investigations allow the identification of geometrical and flow parameters on losses
Investigations in large scale rotating facilities allow verifying the observation raised from simpler facilities in a more realistic environment (also accounting for three-dimensional blade shape, unsteadiness etc.)
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
Example of analysis
• Wind Tunnel for Investigations of Ducts and Airfoils
Moving bars system simulating upstream incoming wakes
Countured walls designed to reproduce the desired advesre pressure gradients (simulating the suction side of higly loaded LPT blade)
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
0.4 0.5 0.6 0.7 0.80
0.02
0.04
0.02 0.04 0.06 0.08 0.10 0.12 0.14
x/L
y/L
u'rms
/Uref
0.4 0.5 0.6 0.7 0.80
0.02
0.04
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
x/L
y/L
u/Uref
Inflection line
Analysis on the large scale flat plate allows a deep inspection of the boundary layer evolution highlighting:
• Transition and separation processes;
• Instability mechanisms leading to transition;
• Shedding of large scale coherent structures (strongly dissipative rollup vorticies);
Example of analysis
PIV istantaneous flow fields
101
102
103
f [Hz]
10-6
10-5
10-4
10-3
10-2
Freestream
Point "B" KHband
HW velocity spectra
Simoni D., Ubaldi M., Zunino P., “A Simplified Model Predicting the Kelvin-Helmholtz Instability Frequency for Laminar Separated Flows”, ASME Journal of Turbomachinery, Vol. 138, 2016, pp. 044501-1 - 044501-6, doi: 10.1115/1.4032162
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
Effects of elevated free-stream turbulence on the boundary layer transition and separation process: recent FR-PIV measurement post-processed with POD
Simoni D., Ubaldi M., Zunino P., “Loss Production Mechanisms in a Laminar Separation Bubble”, Flow, Turbulence and Combustion, Vol. 89, pp. 547-562, 2012
Example of analysis
Simoni D., Ubaldi M., Zunino P., Lengani D., Bertini F.: “An Experimental Investigation of the Separated-Flow Transition Under High-Lift Turbine Blade Pressure Gradients”, Flow, Turbulence and Combustion, Vol. 88 (1-2), pp. 45-62, 2012
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
• Wind Tunnels for Detailed Cascade Investigations
Blade chord in the range 120 mm < C < 180 mm
Blade height 300-350 mm to ensure two dimensional flow at midspan
Moving bars system adopted to simulate upstream wakes, grid for homogeneous turbulence (0.2%<Tu<5%)
System to simultaneously rotate cascade and moving bars system to test off-design operations (i=+/-15°)
Example of analysis
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
s/sMAX
0.85 0.9 0.95 1 1.05 1.1
0.05
0.1-0.05 0.05 0.15 0.25 0.35 0.45 0.55 0.65 0.75 0.85 0.95
y/g
u/U0
s/sMAX
0.85 0.9 0.95 1 1.05 1.1
0.05
0.1y/g
s/sMAX
0.85 0.9 0.95 1 1.05 1.1
0.05
0.1y/g
a) steady state, low FSTI
c) unsteady case, low FSTI
b) steady state, high FSTI
Example of analysis
Lengani D., Simoni D., Ubaldi M., Zunino P., Bertini F., “Experimental investigations on the unsteady transition process of the suction side boundary layer of LPT blades”, ERCOFTAC BULLETIN, vol. 106; p. 31-36, 2016
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
14
Perturbation velocity vector maps: u’(t) = u(t) - U
• Steady inflow (no wakes)
• Re=70000, i = 0
• High acquisition frequency (1853 Hz)
• Large scale vortices are observable in the G2 cascade due to the
instability of the separated boundary layer.
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
s/sMAX
0.85 0.9 0.95 1 1.05 1.1
0.05
-0.05 0.05 0.15 0.25 0.35 0.45 0.55 0.65 0.75 0.85 0.95
y/g
u/U0
POD zoom
0 10 20 30 40Mode number
0.1
1
10
100
En
erg
y c
ap
ture
d [
%]
s/sMAX
0.85 0.9 0.95 1 1.05 1.1
0.05
0.06 0.09 0.12 0.15 0.18 0.21 0.24 0.27 0.3
y/g
u'RMS
/U0
POD zoom
s/sMAX
0.9 0.95 1 1.05
0.02
0.06y/g
Mode 6
0.02
0.06y/g
Mode 5
0.02
Vector field, zoom
Mode 1
y/g
0.02
0.06
-20 -16 -12 -8 -4 0 4 8 12 16 20
y/g
Normalized u negative positive
Mode 1
y/g
0.02
Mode 3
y/g
0.02
Mode 2
y/g
0.02
0.06y/g
Mode 2
0.02
0.06y/g
Mode 3
s/sMAX
0.94 0.96 0.98 1
0.02
Mode 6
y/g
0.02
0.06y/g
Mode 4
0.02
Mode 4
y/g
0.02
Mode 5
y/g
Lengani D., Simoni D., Ubaldi M., Zunino P.“ POD Analysis of the Unsteady Behavior of a Laminar Separation Bubble”, Experimental Thermal and Flow Sciences, Vol. 58, pp. 70-79, 2014
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
Lengani D., Simoni D. “Recognition of coherent structures in the boundary layer of a low-pressure-turbine blade for different free-stream turbulence intensity levels”, International Journal of Heat and Fluid Flows, Vol. 54, 2015, pp. 1-13.
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
Q4
Q2
Q3
Q1W
akecenterline
17
The unsteady passing wakes (red line) carries vortical structures that interact with the blade
boundary layer. An instant of the wake passing (phase averaged results) is here represented as
streamlines: the wake generates a jet like structure pointing toward the wall. In order to reduce the
complexity of such problem the POD has been applied to the PIV dataset
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
Perturbation velocity
vector map: u’(t) = u(t) - U
•f+=0.69, Re=70000, i = 0, =0.675 Acquisition frequency 400 Hz
• With unsteady passing wake, there are large velocity fluctuations outside of the boundary
layer.
• The interaction of the wake with the blade boundary layer is complex.
• Advanced post-processing is required to simplify and understand this problem
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
The phase averaged results show the wake as two large vortices convected through the blade
passage. These coherent structures are causing losses by means of the two mechanism
previously described: wake migration and their interaction with the boundary layer.
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
x
y
-0.4 -0.32 -0.24 -0.16 -0.08 0 0.08 0.16 0.24 0.32 0.4Mode 1
x
y
Mode 3
x
y
Mode 4x
y
Mode 2
φu[m/s]
• POD represents the flow field as a superposition of modes sorted in a descending energy order
(the first mode is the most energetic).
• The POD modes are dimensional and can be related to the Reynolds stresses: each mode is
associated to a flow feature that generate losses
Lengani D., Simoni D., Ubaldi M., Zunino P., Bertini F., Coherent Structures Formation During Wake-Boundary Layer Interaction on a LP Turbine Blade, Flow, Turbulence and Combustion, DOI 10.1007/s10494-016-9741-6, 2016
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
x/Cx
0
0.2
0.4
0.6
0.8
1
1.2
1.4
cp
Re = 70000
Re = 300000
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
x/Cx
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
x/Cx
NL cascade FHL cascade MHL cascade
50000 100000 150000 200000 250000 300000
Re
0
1
2
3
wp/w
ref
50000 100000 150000 200000 250000 300000
Re50000 100000 150000 200000 250000 300000
Re
NL cascade FHL cascade MHL cascade
Losses
Satta F., Simoni D., Ubaldi M., Zunino P., Bertini F., “Loading Distribution Effects on Separated-Flow-Transition of Ultra-High-Lift Turbine Blades Under Steady and Unsteady Inflows” AIAA Journal of Propulsion and Power, Vol. 30, pp. 845-856, 2014
Berrino M., Simoni D., Ubaldi M., Zunino P., Bertini F: “Off-Design Performance of a Highly Loaded LP Turbine Cascade Under Steady and Unsteady Incoming Flow Conditions”, ASME Journal of Turbomachinery, Vol. 137, pp. 071009-1 - 071009-9, 2015
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
• Single stage large scale Axial Research Turbine
Turbine rig
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
• Two-Stage Axial Research Turbine
Turbine rig
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
Balde and vane loading distributions and total pressure maps can be measured to properly characterize the stage under realistic operation condition (accounting for three-dimensional stage design, vortex-vortex interaction process etc…)
0.5
0.45
0.4
0.35
0.3
0.25
0.2
0.15
0.1
0.05
0
0
2.4
1.9
r/h
-1
1.4
2.15
1
1.65
cpt
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
s/smax
0
0.2
0.4
0.6
0.8
1
1.2
1.4
cp
i=-4°
i=0°
i=6°
(r-rhub)/h=50%
Example of analysis
Canepa E., Formosa P., Lengani D. Simoni D., Ubaldi M., Zunino, P., “Influence of Aerodynamic Loading on Rotor-Stator Aerodynamic Interaction in a Two-Stage Low Pressure Research Turbine”, ASME Journal of Turbomachinery, 129, pp. 765-772, 2007
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
• Detailed unsteady three-dimensional flow field from phase-locked HW measurements downstream of the rotor row
Example of analysis
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
Aeroacoustics
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
ARGOMENTO PRINCIPALE
VENTILATORI PER SISTEMI DI RAFFREDDAMENTO AUTOMOBILISTICI
LABORATORIO DI RIFERIMENTO IN CAMPO AEROACUSTICO PER JOHNSON ELECTRIC ASTI, AZIENDA LEADER DEL SETTORE
CARATTERISTICHE
LOCALIZZAZIONE SORGENTI ACUSTICHE (PORZIONI DI PALA CHE EMETTONO RUMORE) E LORO IDENTIFICAZIONE (MECCANISMO AERODINAMICO CONNESSO)
INDIVIDUAZIONE LEGAME FRA MECCANISMO E GEOMETRIA
DEFINIZIONE INTERVENTI PER ABBATTERE IL RUMORE SENZA DIMINUIRE LE PRESTAZIONI (CONOSCENZA FLUIDODINAMICA E METODI DI PROGETTO)
NOTA
IL RUMORE E’ CAUSA DI FASTIDIO PER GLI ESSERI UMANI, QUINDI CONSIDERARE LA CORRELAZIONE FRA GLI ASPETTI FISICI E QUELLI FISIOLOGICI E PSICOLOGICI
ABBATTERE FASTIDIO E NON SOLO POTENZA ACUSTICA IRRADIATA
PSICOACUSTICA/SOUND QUALITY: VALUTAZIONE DELLA «QUALITA’ PERCEPITA» DI UN SUONO/RUMORE A PARTIRE DALLE SUE CARATTERISTICHE FISICHE
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
ATTREZZATURE & SOFTWARE
• CAMERA SEMI-ANECOICA (4 m x 4.6 m x h 3.4 m, fmin = 100 Hz)
• 3 ANALIZZATORI DI SPETTRO, 15 MICROFONI & 4 ACCELEROMETRI, SISTEMI PER LA VISUALIZZAZIONE DI FLUSSO
• SISTEMI PER IL CONDIZIONAMENTO DEL FLUSSO IN ASPIRAZIONE
• SOFTWARE SOUND QUALITY
• SOFTWARE PER L’IDENTIFICAZIONE DELLE SORGENTI ACUSTICHE
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
ATTREZZATURE & SOFTWARE
• TEST PLENUM ISO 10302 PER PROVE A CARICO VARIABILE
• FERITOIE CON REGOLAZIONE AUTOMATICA DELL’APERTURA
• PARETI TRASPARENTI ALLE ONDE ACUSTICHE
PARETE IN MYLAR SERRANDE MOBILI
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
ATTREZZATURE & SOFTWARE
• ROTORE CON SPAZIATURA E NUMERO PALE VARIABILI (Z=2 – 11)
• STATORI 3/4/18/19 PALE
• SERVOMOTORE BRUSHLESS
PALE Z=7 EQUISP.
Z=7 NON EQUISP.
Z=5 NON EQUISP.
Z=9 NON EQUISP.
ATTREZZATURA PER IL MONTAGGIO
GONIOMETRO RISOLUZIONE O.25°
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
OTTIMIZZAZIONE PSICOACUSTICA SPAZIATURA
• ONDA GENERATA DA UNA PALA: FREQ. FONDAMENTALE = FREQ. ROTAZ.
• SUONO RICEVUTO: SOMMA (INTERFERENZA) ONDE GENERATE DA CIASCUNA PALA
• L’INTERFERENZA DIPENDE DALLA SPAZIATURA TANGENZIALE:
• ROTORE EQUISPAZIATO: SOLO BPF E ARMONICHE (PICCHI INTENSI)
• ROTORE NON EQUISPAZIATO: TUTTE LE ARMONICHE DELLA FREQ. DI ROTAZ.
(I PICCHI «AFFONDANO» NELLO SPETTRO)
• OTTIMIZZANDO LA SPAZIATURA IL RUMORE RISULTA MENO FASTIDIOSO (MIGLIORE «QUALITA’») SPETTRO SPL SPETTRO SPL
Anghinolfi, Canepa, Cattanei, Paolucci, Psychoacoustic Optimization of the Spacing of Propellers, Helicopter Rotors, and Axial Fans, Journal of Propulsion and Power, 2016, DOI/10.2514/1.B35960
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
STUDIO TIP LEAKAGE NOISE (IDENTIFICAZIONE DELLE SORGENTI ACUSTICHE)
• IL FLUSSO DI RICIRCOLO VIENE REINGERITO DAL ROTORE GENERANDO RUMORE MOLTO INTENSO A MEDIA/BASSA FREQUENZA (CONTRIBUTO PIU’ IMPORTANTE)
• I PICCHI HANNO FREQUENZE INFERIORE ALLA BPF PER LA PREROTAZIONE POSITIVA
CONFIGURAZIONE DI PROVA FLUSSO
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
SPL
[dB
]
STUDIO TIP LEAKAGE NOISE
TIP LEAKAGE NOISE FREQ. < BPF
ROTORE Dest = 460 mm, Z = 9 PALE
=3000 r/min (BPF = 9x50Hz = 450 Hz)
VEL. AX. (MISURE LDA) PUNTO NOMINALE (DP)
VEL. AX. (MISURE LDA) MANDATA LIBERA (FD)
FLUSSO DI RICIRCOLO (VAX < 0, VTH > 0 )
SPETTRO SPL
Canepa, Cattanei, Mazzocut Zecchin, Milanese, Parodi, An experimental investigation on the tip leakage noise in axial-flow fans with rotating shroud, Journal of Sound and Vibration, 2016, DOI 10.1016/j.jsv.2016.04.009
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
Turbomachinery design
Design specification
Aero
3D analysis
Throughlow SLCM analysis
2D design procedure (ISRE-NISRE)
Thermodynamic cycle
1D design procedure
Comparison with design
specification
Mechanical
Final machine configuration
Power output, efficiency
Turbine overall boundary conditions
Meanline geometrical characteristics
Meridional flow behaviour and overall performance
Radial distribution of geometrical characteristics
Detailed 3D flow behaviour
Mechanical assessment
Optimization procedure
Design criteria modification
Axial flow turbine design method
Design specification
Aero
3D analysis
Throughlow SLCM analysis
2D design procedure (ISRE-NISRE)
Thermodynamic cycle
1D design procedure
Comparison with design
specification
Mechanical
Final machine configuration
Power output, efficiency
Turbine overall boundary conditions
Meanline geometrical characteristics
Meridional flow behaviour and overall performance
Radial distribution of geometrical characteristics
Detailed 3D flow behaviour
Mechanical assessment
Optimization procedure
Design criteria modification
Axial flow turbine design method
Design specification
Aero
3D analysis
Throughlow SLCM analysis
2D design procedure (ISRE-NISRE)
Thermodynamic cycle
1D design procedure
Comparison with design
specification
Mechanical
Final machine configuration
Power output, efficiency
Turbine overall boundary conditions
Meanline geometrical characteristics
Meridional flow behaviour and overall performance
Radial distribution of geometrical characteristics
Detailed 3D flow behaviour
Mechanical assessment
Optimization procedure
Design criteria modification
Axial flow turbine design method
Design specification
Aero
3D analysis
Throughlow SLCM analysis
2D design procedure (ISRE-NISRE)
Thermodynamic cycle
1D design procedure
Comparison with design
specification
Mechanical
Final machine configuration
Power output, efficiency
Turbine overall boundary conditions
Meanline geometrical characteristics
Meridional flow behaviour and overall performance
Radial distribution of geometrical characteristics
Detailed 3D flow behaviour
Mechanical assessment
Optimization procedure
Design criteria modification
Axial flow turbine design method
Design specification
Aero
3D analysis
Throughlow SLCM analysis
2D design procedure (ISRE-NISRE)
Thermodynamic cycle
1D design procedure
Comparison with design
specification
Mechanical
Final machine configuration
Power output, efficiency
Turbine overall boundary conditions
Meanline geometrical characteristics
Meridional flow behaviour and overall performance
Radial distribution of geometrical characteristics
Detailed 3D flow behaviour
Mechanical assessment
Optimization procedure
Design criteria modification
Axial flow turbine design method
Design specification
Aero
3D analysis
Throughlow SLCM analysis
2D design procedure (ISRE-NISRE)
Thermodynamic cycle
1D design procedure
Comparison with design
specification
Mechanical
Final machine configuration
Power output, efficiency
Turbine overall boundary conditions
Meanline geometrical characteristics
Meridional flow behaviour and overall performance
Radial distribution of geometrical characteristics
Detailed 3D flow behaviour
Mechanical assessment
Optimization procedure
Design criteria modification
Axial flow turbine design method
University of Genova
Aerodynamics and Turbomachinery Laboratory
15 Luglio, Giornata di studio sulle Turbomacchine, Bergamo Daniele Simoni
Thanks
Daniele Simoni Tel 010 353 2459