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Research

Turbomachinery

Turbomachinery associates itself with challenging unsteady turbulent flows with significant thermal energy transfer.

Turbomachinery Facilities

View the Turbomachinery Facilities

Faculty

Cengiz Camci

Activities

Research in the area of turbomachinery and air breathing propulsion includes a wide spectrum of activities with aircraft, unmanned aerial vehicles, spacecraft, marine and automotive applications. Basic research is related to steady and unsteady aerodynamics, heat transfer, computational fluid dynamics, measurement techniques and sensor development in these areas.

Several graduate courses in the area of fluid dynamics, heat transfer, turbomachinery theory and design, computation of turbomachinery flows, computational fluid dynamics, etc., provide an excellent background for research. Past and current sponsors include NASA, NSF, ARO, ONR, Rolls Royce-Allison, General Motors, CFDRC, DOE/AGTSR, Solar Turbines Inc., United Technologies Pratt&Whitney. Current projects and topics include the following:

Measurement
  • Laser doppler velocimeter measurement of end wall and tip clearance flows in axial flow turbomachinery
  • Turbomachinery rotor blade boundary layer measurements
  • End wall flow, blade boundary layers, and wakes in turbine nozzle and rotor passages
  • Aerodynamics and heat transfer aspects of secondary flows and 3D endwall boundary layers in curved ducts
  • Discrete hole film cooling of gas turbine blades, near hole region hydrodynamics, turbulence structure and heat transfer
  • Turbine rotor/stator interaction; unsteady aerodynamics and heat transfer measurement in turbine rotors, including short duration heat transfer measurement technique development
  • Development of liquid crystal and image processing techniques for heat transfer and aerodynamic measurements in rotating systems
  • Flow in the disk cavity of axial flow turbines
  • Tip clearance region aerodynamics and heat transfer in axial flow turbines
  • Development of effective pin fin geometries as internal cooling passage heat transfer promoters
  • Aerodynamic losses of trailing edge coolant injection systems for gas turbine applications
  • Implementation of phase locked stereoscopic particle image velocimeter (PIV) in axial flow turbomachinery
Computation
  • Single pass and multi-pass space marching methods for three dimensional turbulent flows
  • 3D viscous time accurate code for the prediction of rotor/stator interaction
  • Computation and analysis of three dimensional boundary layer including heat transfer on turbomachinery blade
  • Three dimensional computational grid generation for turbomachinery rotors
  • 3D incompressible Navier Stokes code for solving turbulent flows through arbitrary ducts
  • 2D incompressible Navier Stokes code for turbulent channel flows with heat transfer
Analysis
  • Turbulence modelling for rotating, curved flows and for high temperature application
  • Turbomachinery wake analysis through momentum integral technique
  • Simulation of gas turbine blade convection and conduction heat transfer with and without cooling
  • Digital analysis and enhancement of aerodynamic and thermal images using transformation techniques

Specializations

  • Computation and Measurement
  • Turbulence Modeling
  • Theory and Design
  • Heat Transfer
  • Fast reponse probe/sensor development and manufacturing
  • Sub-miniature aerodynamic probe development and manufacturing