1. Mid-Term Review Meeting
ESR Dmytro Iurashev Supervisors: Ing. Federico Daccà, Prof. Alessandro Bottaro
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2. M.Sc. in Heat and Power Engineering
Kyiv Polytechnic Institute, Ukraine
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3. 3.7 Numerical and analytical study of combustion instabilities in industrial gas turbine
In-house code including mean flow and nonlinear effects was developed and implemented in COMSOL environment
Limit cycle.
Prediction of the amplitude of pressure perturbations
Simulations in time domain
The main aim: To develop a simplified fast and precise tool able to predict combustion instabilities in industrial gas turbine burners
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4. Recent research results
1) Model works like a FILTER
Harmonics
Noise
2) Changing flow velocity
Growth in the amplitude of the pressure fluctuations
Decrease in the amplitude of the pressure fluctuations
Saturation
3) It is possible to reach Limit Cycle using the proposed model
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5. Future investigations
Verification of the model with literature cases
2-D and 3-D models are to be discussed
Add motion of the flame
Interaction between entropy and acoustic waves
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6. Technical University of Munich
TANGO network
Project themes
Alessandra Keele University
Alp
Technical University of Munich
Dmytro
Ansaldo Energia
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7. TANGO Workshops attended
n3l Summer School and Workshop (June 2013)
1st Workshop on Communication and Outreach (September 2013)
Workshop on Experimental Methods in Thermoacoustics (February 2014)
Workshop on Aeroacoustics in Confined Flows of Low Mach Number (May 2014)
Workshop on Gender Issues (May 2014)
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8. Training sessions at the University of Genoa
Continuum Mechanics
Partial Differential Equations and Applications
Advanced Fluid Dynamics
Perturbation Methods
Hydrodynamic Stability
Numerical Methods for Partial Differential Equations
Turbulence
OpenFOAM course
Course on Soft Skills and Integration in Working Environments
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9. Conferences attended Publications
21st International Congress on Sound and Vibration, Beijing, China, July 2014, July 2014, Beijing, China.
Publications
D. Iurashev, A. Di Vita, E. Cosatto, G. Campa, F. Dacca` and A. Bottaro (2014) "A limit cycle for pressure oscillations in a gas turbine burner", Proceedings of the 21st International Congress on Sound and Vibration, July 2014, Beijing, China.
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10. Secondment plans Technical University of Munich
October – December 2014
Topic:
Verification of my model and extension to include flame movement.
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11. Career plans
I would like to continue working in thermoacoustics either at research institute or in industry, trying to understand the relevant physical mechanisms and devising methods to control thermo-acoustic instabilities in industrial gas turbines.
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12. Thank you for your attention!
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