T. KORAKIANITIS Engineering practice	"Korakianitis" is pronounced phonetically
email: tk@mecf.wustl.edu	link: [ 183 kB audio wav]

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T. Korakianitis' main page

Research in piston engines	Research in turbomachines	(you are here) Engineering practice	Opinions on education
Internal combustion engines laboratory Emissions Combustion Piston dynamics Valve train dynamics Nutating-disk engine Turbochargers	Airfoil and blade design Stator-rotor interactions Aircraft inlets Combustion Emissions Gas-turbine transients Gas-turbine performance	Machine design topics Thermofluids design Blood flow in human heart Surgical instruments Power generation Aeronautical applications Piston engines	Graduate thermodynamics (ME 512) Graduate piston engine design (ME 578) Graduate turbomachinery design (ME 574) Senior design course (ME 404/404a/404b) Junior thermodynamics (ME 320A) Freshman internal combustion engines (ME 147)

Archival publications

Outside Washington University Korakianitis and his associates relax by attacking several practical engineering projects. Most of these projects are not in the public domain, and can not be reported in detail.  Usually our consulting projects involve aspects of unsteady or transient performance of various mechanical systems and/or their components. Perhaps a better description is that a promised and overdue product analyzed and designed with steady models fails to produce the expected outcome because of an "unforeseen" aspect of transient or periodic performance, which was previously not modeled or not understood.  In the following we mention six internally-owned representative projects. We also list a few others for which we have obtained permission from customers to include one-line descriptions. These descriptions provide a flavor of our activities.

1) Fluid passages for optimum flow characteristics. This is based on our turbomachinery blade-design research, but its applications are diverse, including control of characteristics of separated flow, specifying the location of tripping the flow into turbulence, porting of piston-engine manifolds, fighter-aircraft inlets, marine propellers, aerodynamic and hydrodynamic performance of various craft, and quieter automotive fuel-pump inlets.

2) Stator-rotor interactions

3) Piston-assembly dynamics

4) Valve-train dynamics    

5) Design of a bi-ventricular assist device (with Dr. Lonn Grandia) 
 

		Should the assist device mimic the pulsatile flow of the native heart? Which parts of the flow can be considered steady? Which ones unsteady?

6) Instrument to quantify tendon tension in surgery.
T. Korakianitis, J. Engsberg and D. Crawford.
US patent approved (expecting number assignment)

LIST OF SELECT OTHER PROJECTS:

Power and Propulsion
Studies for advanced fighter airplanes
Design of the powering system for an acoustic research ship
Powering systems for diesel-powered fuel-supply ships
Design of landing/attack craft
Evaluation and preliminary design of high-altitude propulsion system
Design of a gas turbine for Navy combatants 

Piston Engines
Engine ports for racing applications
Diesel engine piston/liner interaction
Design of smooth surfaces for fuel pumps
Unsteady flows in diesel-engine exhaust ducts
 

Incompressible Flows
Design of  concrete pump
Design of chemical pump
Evaluation of spray-painting system
Design of an unconventional fuel pump
Design of system to measure liquid pressures via natural frequencies

Mechanics and Dynamics
Torsional vibrations in a twin-shaft ship
FEM analysis of a large-compressor blade 
Task-chair lift mechanism
Cutting patterns of diesel-driven adger

Compressible Flows
Fighter-aircraft environmental-control system
Fighter-aircraft oxygen-supply system
Evaluation of a turbine generator system
Design of supersonic stators for a turbine
Real-gas (new refrigerants) performance prediction for impellers
Evaluation of a turbine operating on unconventional fuel
Analyses of turboprop designs
Computation of streamline distributions in multi-stage axial turbomachinery
Steady and unsteady flows in turbomachinery stages

Representative applications

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