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CASA-25: Variable Bypass
Turbofan Engine for
Supersonic Business Jet
Awarded First in International AIAA/ASME
Design Competition
Problem: Design a supersonic variable bypass
turbofan for future supersonic business jet
Final Design: Dual spool mix flow low bypass
ratio variable cycle turbofan. Huge leap in
performance with lower emission and noise
level. Design included: Helmhotz resonators and
piezo-ceramic actuators, titanium LE and
composite fan blades, active blade tip clearance,
patented lobe mixer and variable C-D nozzle
Spring 2014 Adrian Lee
J.E.T.T. Jayhawk
Economical Turboprop
Transport
First in International AIAA Design Competition
Overview: Proposal design for future turboprop-
powered passenger aircraft
Design features:
• Shrouded turboprop for reduce noise
• Wind-fold mechanism allowing wing span
extension (increase aspect ratio) for fuel saving
• Pressure adaptive honeycomb structures and
Prandtl-Tailored wingtips for weight and drag
reduction
J.E.T.T. on NX Unigraphics
STAMPED Power
andWing Loading
Spring 2014 Adrian Lee
Bio-Inspired
Airspeed Sensor
Problem: Design an airspeed sensor for
high angles of attack and sideslip use,
suitable for UAVs.
Solution: Inspired from the Peregrin
Falcon’s nose, an airspeed probe
prototype was manufactured and wind
tunnel tested with optimistic results.
The Bio-Inspired airspeed sensor is
currently undergoing flight testing and
design adjustment for final product
manufacturing.
Preliminary
airspeed sensor
design
3D illustration of
design concepts
on Solidworks.
3D printed prototypes
using polycarbonate
for wind tunnel test
Fall 2014 to Summer 2016 Adrian Lee

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Adrian's Portfolio

  • 1. CASA-25: Variable Bypass Turbofan Engine for Supersonic Business Jet Awarded First in International AIAA/ASME Design Competition Problem: Design a supersonic variable bypass turbofan for future supersonic business jet Final Design: Dual spool mix flow low bypass ratio variable cycle turbofan. Huge leap in performance with lower emission and noise level. Design included: Helmhotz resonators and piezo-ceramic actuators, titanium LE and composite fan blades, active blade tip clearance, patented lobe mixer and variable C-D nozzle Spring 2014 Adrian Lee
  • 2. J.E.T.T. Jayhawk Economical Turboprop Transport First in International AIAA Design Competition Overview: Proposal design for future turboprop- powered passenger aircraft Design features: • Shrouded turboprop for reduce noise • Wind-fold mechanism allowing wing span extension (increase aspect ratio) for fuel saving • Pressure adaptive honeycomb structures and Prandtl-Tailored wingtips for weight and drag reduction J.E.T.T. on NX Unigraphics STAMPED Power andWing Loading Spring 2014 Adrian Lee
  • 3. Bio-Inspired Airspeed Sensor Problem: Design an airspeed sensor for high angles of attack and sideslip use, suitable for UAVs. Solution: Inspired from the Peregrin Falcon’s nose, an airspeed probe prototype was manufactured and wind tunnel tested with optimistic results. The Bio-Inspired airspeed sensor is currently undergoing flight testing and design adjustment for final product manufacturing. Preliminary airspeed sensor design 3D illustration of design concepts on Solidworks. 3D printed prototypes using polycarbonate for wind tunnel test Fall 2014 to Summer 2016 Adrian Lee