Combustion dynamics & thermoacoustics — from heavy-duty gas turbine combustors to open-source low-order models.
- 🎓 PhD in Energy Engineering (Aalborg University, Denmark) — LES of swirling reacting flows
- 🎓 Bachelor and Master in aeroengine from BUAA, Beijing University of Aeronautics and Astronautics / Beihang University
- 🎓 Part-time Master of Science in Probability and Mathematical Statistics, Renmin University
- 🔧 15+ years of gas-turbine combustion R&D: Alstom Power (GT26/GT36 reheat combustors), Ansaldo Energia, and the Chinese Academy of Sciences (Institute of Engineering Thermophysics, Hundred-Talents Program PI)
- 📐 ~20 journal & conference papers (ASME Turbo Expo, JEGTP, Fuel, Applied Acoustics) · 19+ patent families (EP/CN)
- Thermoacoustic instability of lean-premixed and reheat combustors: linear stability, flame transfer / describing functions (FTF / FDF), Helmholtz dampers
- Nonlinear dynamics: Stuart–Landau amplitude equations, Hopf bifurcation, limit-cycle prediction, applicability of low-dimensional models
- Data-driven combustion diagnostics: POD, DMD, singular spectrum analysis (SSA) of pressure / heat-release signals
- Combustor design: low-emission swirl heads, multi-burner arrangements, hydrogen-ready nozzles (8+ patent families); micro turbojet reverse-flow combustors and liner cooling (1D design suite + cooling_stack)
- Low-order modelling in pure Python (thermoacnet, ftf-blocks)
| Repo | What it does |
|---|---|
thermoacnet |
Thermoacoustic network stability analysis in Python: ducts, area jumps, burners, Helmholtz resonators, n-τ flames, modal-to-state-space core — verified against 19 analytical anchors |
ftf-blocks |
Modular building blocks for flame transfer functions: six elementary operators, series/parallel assembly rules, two-path swirl interference |
ftf-to-sl |
From flame transfer functions to Stuart–Landau oscillators: parameter extraction + (K, ζ) applicability maps for swirl-combustor limit cycles |
microgt-combustor-1d |
1D preliminary design suite for micro gas turbine combustors: mission profile → cycle → geometry → airflow split → swirler/nozzle → wall thermal network → materials — 📖 design report with a fully worked 80 N example |
cooling_stack |
Modular liner-cooling design tool for small gas-turbine combustors: serial-path modules (backside convection → ribbed channel → impingement → film rows) → bisection energy-balance solver with coolant heat-up → dP budget → automatic advice layer — 14 regression tests with fixed numerical anchors |
-
Singular spectrum analysis of transient heat release in a premixed swirling combustor (preprint)
Yang Yang -
One-Dimensional Design of a Reverse-Flow Annular Combustor for a Micro Turbojet Engine: Methodology and Worked Example (technical report)
Yang Yang
Python (NumPy/SciPy) · CFD: ANSYS Fluent (UDF), STAR-CCM+ · LES & system identification · POD/DMD/SSA · acoustic transfer-matrix measurements (multi-microphone)
- Joint research & co-authoring — now. Remote collaboration on FTF/FDF identification, nonlinear thermoacoustics, and data-driven diagnostics (POD/DMD/SSA). Happy to work on shared data, benchmark cases, or papers.
- Guest lectures & seminars on industrial combustor stability practice (what OEM data really looks like, and what low-order models miss).
- Research visits — short stays and secondments possible now; extended sabbatical window from April 2028.
- Consulting: combustor stability assessment, FTF test-rig design, Helmholtz damper tuning, design reviews.
📩 Contact: [ [email protected] ] · [ [email protected] ]
Languages: Chinese (native), English (working), German (B1)