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Hysteresis Assumptions for Propeller in Yaw in Close Stall Conditions
display inherent uncertainty, which close to stall conditions is dominated by the dynamic stall phenomenon. The paper presents oscillating airfoil theory and Joukowsky vortex theory, and discusses problems of oscillations ...
Mechanical engineering
- 2018 •
- D •
- Link
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D - Stať ve sborníku
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Experimental investigation of flow-induced vibration of a pitch-plunge NACA 0015 airfoil under deep dynamic stall
, the mode lis highly susceptible to deep dynamic stall in stability with the peak layer behavior during dynamic stall. With increasing in flow velocity, the plunge......
BI - Akustika a kmity
- 2016 •
- Jx •
- Link
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Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
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Some energy relations of the self-excited profile vibration in flowing fluid
The aeroelastic measurements on the oscillating NACA0015 profile vibrating as the dynamic system with two degrees of freedom (pitch and plunge) were realized within the interval of Mach numbers M = 0.08 to 0.45 and Reynolds numbers Re = (1 –...
Acoustics
- 2017 •
- D
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D - Stať ve sborníku
Some experimentally determined properties of a profile in case of self-excited oscillations in subsonic flow
experiments different types of self-excited vibration (flutter, stall flutter, deep stall...
Acoustics
- 2017 •
- D
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D - Stať ve sborníku
Self-excited oscillation properties of the profile NACA0015 in subsonic flow
Self-excited oscillations of the profile NACA0015 in subsonic flow were realized in the wind tunnel. The plunge support had the same elasticity for all experiments, the pitch support had seven different elasticity parameters. During our experiments d...
Fluids and plasma physics (including surface physics)
- 2018 •
- D
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D - Stať ve sborníku
Fan anti-stall prediction equipment
Design of the anti-stall equipment for prediciton fan instability working.
BK - Mechanika tekutin
- 2016 •
- O
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O - Ostatní výsledky
Influence of torsional stiffness on flow-induced vibration of a 2DOF airfoil
rations. two types of aeroelastic instability have been encountered: deep dynamic stall with full flow separation and pitch angle amplitudes reaching almost 60 deg......
JU - Aeronautika, aerodynamika, letadla
- 2016 •
- D
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D - Stať ve sborníku
Evaluation of Interferograms of Unsteady Subsonic Airflow Past a Fluttering Airfoil
subsonic wind tunnel. Aeroelastic instability of the classical utter and dynamic stall type has been observed in the Mach number range M = 0.2 - 0.5......
BK - Mechanika tekutin
- 2016 •
- D •
- Link
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Numerical modelling of the experimental based high frequency subsonic stall flutter in linear blade cascade
Stall flutter in large steam turbine blades is one of the major challenge in the operation safety of turbomachinery. Stall flutter triggers due to complete or partial prediction of subsonic stall flutter is essential. Numer...
Applied mechanics
- 2021 •
- O •
- Link
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O - Ostatní výsledky
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Application of boundary element type flow models in turbomachinery stability analysis
flutter and stall flutter in turbomachinery modeled and the aerodynamic damping modified panel method flow model for both classical and stall flutter cases equation based high fidelity computational fluid dynamics model.n....
Applied mechanics
- 2021 •
- D •
- Link
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D - Stať ve sborníku
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