Gas turbine simulation: spray, combustion, emissions, Shaft and Gear Systems, acoustic enclosures

FEA & CFD Based Simulation Design Analysis Virtual prototyping MultiObjective Optimization

Gas turbine combustion is a complex process, and it can be a challenge to achieve accurate and reliable CFD simulation results at a reasonable computational cost. Computational efficiency requires appropriate mesh resolution and turbulence, spray, combustion, and emissions models that provide an appropriate level of detail.

ComponentQuestionFEA and CFD Simulation
Inlet Systems
  • Fogging and cooling
    • Delivering a uniform temperature to the compressor
    • Ensure complete evaporation of spray
  • Avoiding compressor fatigue caused by non-uniform air flow distribution
  • Icing of air filters
  • Design with virtual prototypes
    • Calculating motion, evaporation, mixing and thermal impact of spray
    • Simulate non-uniformities of inlet coolers or heaters
Shaft and Gear Systems
  • Ensuring rotational stability
  • Avoiding interferences caused by rotation-induced strains
  • Predict critical speeds, whirl, stability, base excitation and transient responses
  • Seamless integration between analysis and optimization tools
    • Including Design for Six-Sigma
Compressors
  • Off-design performance
    • Avoiding surge over a range of power settings
    • Flow separation
  • Flow-induced vibration
  • Understand rotational and flow-induced vibration modes before building physical prototypes
  • Simple extension of quasi-1D tools to full 3D physics for design refinement
    • Turbo design environment
    • Investigation of separation and tip gap characteristics
    • Installation effects

Enteknograte engineering team use advanced CAE software with special features for mixing the best of both FEA tools and CFD solvers: CFD codes such as Ansys FluentSiemens StarCCM+OpenFOAM and FEA Codes such as ANSYSABAQUSNastranLS-DynaMSC Marc

Combustors
  • Maximizing thermal energy generation while minimizing NOx and CO emissions
  • Designing liner and other components for proper thermal load
  • Thermal stresses during “staging” or at partial loads
  • Make early design changes necessary to keep creep and thermal stresses within limits under all operational conditions
  • Optimize combustion and reduce emission levels with virtual prototyping
Turbines
  • Cooling blades sufficiently without sacrificing performance
  • Flexibility in design for partial power loads
  • Flow separation
  • Rotation and flow-induced vibration
  • Gas flow in secondary flow passages
  • Design for non-ideal fluid and structural effects of separation, heat transfer, and blade cooling
  • Flexibility of connecting blade passage analysis with secondary flow passages and cooling effects in a user environment geared towards turbomachinery simulation
  • Design for rotational stability
Acoustic Enclosures
  • Designing ventilation systems to avoid combustible mixtures caused by gas leaks
  • Improve safety and reduce design costs
    • Test and improve ventilation designs under various leakage conditions before manufacturing
Turbine Nozzle Conjugate Heat Transfer CHTStress and Temperature distribution Fatigue Coupled CFD FEA CHT Ansys Fluent Abaqus Nastran Openfoam Siemens Star-ccm
Gas turbine simulation: spray, combustion, emissions, Shaft and Gear Systems, acoustic enclosures