Turbomachinery Engineer | Düzce

Contact Us Turbomachinery Engineer | Düzce Düzce, Türkiye Apply Now! Kepler Aviation develops micro turbojet engines in Düzce, Türkiye. This role covers the rotating heart of the engine: centrifugal compressor, diffuser, turbine stage and the spool that carries them. You will design it, analyse it, balance it, put it on the test bench and prove it with data. 📍 Location: Düzce, Türkiye 🕐 Type: Full-time, on-site, reporting to the Propulsion Lead What You Will Do Perform 1D meanline sizing, thermodynamic cycle matching and 2D/3D blade passage design for centrifugal compressors and axial or radial turbine stages Design and optimise vaned and vaneless diffusers, crossover passages and turbine nozzles for total-to-total efficiency and wide surge and stall margins across the operating speed range Run 3D RANS CFD of compressible turbomachinery flow (ANSYS CFX, Fluent or Star-CCM+): pressure ratio, separation, total pressure losses Carry out rotordynamic analysis: critical speeds, Campbell diagrams, lateral and torsional stability, bearing loads at very high shaft speeds Perform precision dynamic balancing of impellers, shafts, turbine wheels and the assembled rotor to strict vibration limits Run structural, centrifugal stress, thermal and high-cycle fatigue FEA on impellers and turbine blisks (ANSYS Mechanical, Siemens NX) Analyse turbine thermal management, including cooling passages and loss reduction on turbine vanes Integrate the spool with the combustor liner, fuel nozzles and bearing lubrication and cooling circuits Support commissioning and testing on the turbojet test bench, and turn vibration, pressure, temperature and speed data into validated performance maps Requirements Bachelor's degree in Aerospace or Mechanical Engineering with a specialisation in turbomachinery, gas turbines or propulsion Proven background in gas turbine architecture, centrifugal compressor performance maps and turbine stage design 3D compressible CFD for turbomachinery: ANSYS CFX, Fluent or Star-CCM+ Blade design and sizing tools: MULTALL, AxSTREAM, ANSYS Vista CCD, BladeGen or TurboGrid CAD and FEA: Siemens NX, ANSYS Mechanical Python, MATLAB or FORTRAN for cycle analysis, data processing and performance scripts Hands-on experience with dynamic balancing of high-speed rotating assemblies and bearing selection, for example hybrid ceramic angular contact bearings Experience with turbine cascade testing, film cooling analysis or gas turbine test bench operation Fluent technical English, reading and writing Based in Düzce or willing to relocate Preferred Hands-on turbojet hardware experience Peer-reviewed publications in turbomachinery or gas turbines (ASME Turbo Expo, IMECE or similar) Master's degree or PhD in turbomachinery or propulsion Please upload your CV in English. Kepler Aviation develops micro turbojet engines in Düzce, Türkiye. This role covers the rotating heart of the engine: centrifugal compressor, diffuser, turbine stage and the spool that carries them. You will design it, analyse it, balance it, put it on the test bench and prove it with data. 📍 Location: Düzce, Türkiye 🕐 Type: Full-time, on-site, reporting to the Propulsion Lead What You Will Do Perform 1D meanline sizing, thermodynamic cycle matching and 2D/3D blade passage design for centrifugal compressors and axial or radial turbine stages Design and optimise vaned and vaneless diffusers, crossover passages and turbine nozzles for total-to-total efficiency and wide surge and stall margins across the operating speed range Run 3D RANS CFD of compressible turbomachinery flow (ANSYS CFX, Fluent or Star-CCM+): pressure ratio, separation, total pressure losses Carry out rotordynamic analysis: critical speeds, Campbell diagrams, lateral and torsional stability, bearing loads at very high shaft speeds Perform precision dynamic balancing of impellers, shafts, turbine wheels and the assembled rotor to strict vibration limits Run structural, centrifugal stress, thermal and high-cycle fatigue FEA on impellers and turbine blisks (ANSYS Mechanical, Siemens NX) Analyse turbine thermal management, including cooling passages and loss reduction on turbine vanes Integrate the spool with the combustor liner, fuel nozzles and bearing lubrication and cooling circuits Support commissioning and testing on the turbojet test bench, and turn vibration, pressure, temperature and speed data into validated performance maps Requirements Bachelor's degree in Aerospace or Mechanical Engineering with a specialisation in turbomachinery, gas turbines or propulsion Proven background in gas turbine architecture, centrifugal compressor performance maps and turbine stage design 3D compressible CFD for turbomachinery: ANSYS CFX, Fluent or Star-CCM+ Blade design and sizing tools: MULTALL, AxSTREAM, ANSYS Vista CCD, BladeGen or TurboGrid CAD and FEA: Siemens NX, ANSYS Mechanical Python, MATLAB or FORTRAN for cycle analysis, data processing and performance scripts Hands-on experience with dynamic balancing of high-speed rotating assemblies and bearing selection, for example hybrid ceramic angular contact bearings Experience with turbine cascade testing, film cooling analysis or gas turbine test bench operation Fluent technical English, reading and writing Based in Düzce or willing to relocate Preferred Hands-on turbojet hardware experience Peer-reviewed publications in turbomachinery or gas turbines (ASME Turbo Expo, IMECE or similar) Master's degree or PhD in turbomachinery or propulsion Please upload your CV in English. Apply Now!