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Posts
- Category: UNSTEADY AERODYNAMICS, AEROACOUSTICS AND AEROELASTICITY OF TURBOMACHINES (continued)
- Aeroelastic Model
- MISTUNING AND COUPLING EFFECTS IN TURBOMACHINERY BLADINGS
- Summary and Conclusion
- Forced response analysis
- Transferring CFD pressure to the FE model
- Mechanical model
- Unsteady flow results
- CFD-Method
- Test Rig
- AXIAL TURBINE BLADE VIBRATIONS INDUCED BY THE STATOR FLOW
- Other Applications
- Analytical Solutions
- Critical Damping
- Side Force and Yawing Moment Coefficients
- Admittance for the Moment
- Properties of the Admittance
- Theoretical Model
- UNSTEADY GUST RESPONSE IN THE FREQUENCY DOMAIN
- Flutter Measurements
- Evaluation of the Aerodynamic Damping
- Investigated Flow Cases
- Experimental Investigations
- Annular Test Facility Annular Wind Tunnel
- EXPERIMENTAL FLUTTER INVESTIGATIONS OF AN ANNULAR COMPRESSOR CASCADE: INFLUENCE OF REDUCED FREQUENCY ON STABILITY
- Suppression of unstable vibration by the trailing edge oscillation
- Analysis in the case when all blades are forced to oscillate
- Analysis of Flutter suppression by Trailing Edge Oscillaton
- Flutter Suppression by Changing Direction of Blade Oscillation
- An Analysis of Blade Vibration Instability
- Numerical Argorithm
- POSSIBILITY OF ACTIVE CASCADE FLUTTER CONTROL WITH SMART STRUCTURE IN TRANSONIC FLOW CONDITION
- Numerical and Experimantal Results
- Aeroelastic Model
- Test Stand
- EXPERIMENTAL AND NUMERICAL INVESTIGATION OF 2D PALISADE FLUTTER FOR THE HARMONIC OSCILLATIONS
- Summary & Conclusions
- Example Problems
- Steady Pressure Term
- Rigid Body Mode Shapes
- Work Associated with Unsteady Pressure
- Work for General Complex Mode Shapes
- FLUTTER DESIGN OF LOW PRESSURE TURBINE BLADES WITH CYCLIC SYMMETRIC MODES
- Results
- Flutter screening for complex modes
- Flutter screening for real modes
- Computational method
- A METHOD TO ASSESS FLUTTER STABILITY OF COMPLEX MODES
- Far field domain
- Near field domain
- Results and discussion
- Sectored vane geometry and calculations in traveling wave domain
- Objectives
- INFLUENCE OF A VIBRATION AMPLITUDE DISTRIBUTION ON THE AERODYNAMIC STABILITY OF A LOW-PRESSURE TURBINE SECTORED VANE
- Concluding Remarks
- Modal Characteristics of Bladed-Disks
- Flutter Stability Maps
- Analysis Methodology
- Numerical Formulation Linearized Euler Equations
- FLUTTER BOUNDARIES FOR PAIRS OF LOW PRESSURE TURBINE BLADES
- Unsteady Aerodynamics, Aeroacoustics and Aeroelasticity of Turbomachines
- Category: UNSTEADY INCOMPRESSIBLE POTENTIAL FLOW
- POSSIBLE ADDITIONAL FEATURES OF PANEL CODES
- Modeling of Highly Swept Leading - Edge Separation
- Flow Separation on Wings with Highly Swept Leading Edge—Experimental Observations
- Modeling of Unswept Leading-Edge Separation
- Flow Separation on Wings with Unswept Leading Edge—Experimental Observations
- FLOW OVER WINGS AT HIGH ANGLES OF ATTACK
- High-Lift Considerations
- Low-Drag Considerations
- INFLUENCE OF VISCOUS FLOW EFFECTS ON AIRFOIL DESIGN
- 14.2.1 The Boundary Layer Concept
- COUPLING BETWEEN POTENTIAL FLOW AND BOUNDARY LAYER SOLVERS
- WAKE ROLLUP
- ENHANCEMENT OF THE POTENTIAL FLOW MODEL
- UNSTEADY PANEL METHODS
- UNSTEADY LIFTING-SURFACE SOLUTION BY VORTEX RING ELEMENTS
- SOME REMARKS ABOUT THE UNSTEADY KUTTA CONDITION
- ALGORITHM FOR UNSTEADY AIRFOIL USING THE LUMPED-VORTEX ELEMENT
- Solution of the Flow Over the Unsteady Slender Wing
- UNSTEADY MOTION OF A SLENDER WING
- Fluid Dynamic Loads
- Solution by the Time-Stepping Method
- Wake Model
- Kinematics
- UNSTEADY MOTION OF A TWO - DIMENSIONAL THIN AIRFOIL
- The Added Mass
- SUDDEN ACCELERATION OF A FLAT PLATE
- SUMMARY OF SOLUTION METHODOLOGY
- EXAMPLES FOR THE UNSTEADY BOUNDARY CONDITION
- COMPUTATION OF PRESSURES
- ADDITIONAL PHYSICAL CONSIDERATIONS
- METHOD OF SOLUTION
- FORMULATION OF THE PROBLEM AND CHOICE OF COORDINATES
- UNSTEADY INCOMPRESSIBLE POTENTIAL FLOW
- Category: When Is A Flow Compressible?