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Mr. Daniel A. Wachspress, Senior Associate
Tel.: 609.538.0444 ext 114
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Background
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- Joined CDI in 1983
- Principal programmer of CDI's EHPIC/HERO and CHARM rotorcraft analysis software
- MSE, Princeton University, 1982 in Mechanical and Aerospace Engineering
- BSE, Princeton University, 1980
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Research Interests
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Research, development, implementation and support of CDI's comprehensive rotorcraft analyses EHPIC and CHARM; development and implementation of advanced aerodynamic
models for rotary-wing flight simulations and trainers; rotor aerodynamic and acoustic analysis and design; rotary-wing aircraft interactional aerodynamics;
rotary-wing aircraft shipboard operations; multiple aircraft wake interaction analysis and real-time simulation; rotary-wing aircraft brownout analysis and
real-time simulation.
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Selected Publications
- A High Fidelity Brownout Module for Real-Time Flight Simulations and Trainers," AHS 65th Annual Forum, Grapevine, TX, May 2009 (with G.R. Whitehouse, J.D. Keller, K. Yu, P. Gilmore, M. Dorsett, K. McClure)
- High Fidelity Rotor Aerodynamic Module for Real-Time Rotorcraft Flight Simulation," AHS 64th Annual Forum, Montréal, Canada, May 2008, (with J.D. Keller, T.R. Quackenbush, G.R. Whitehouse and K. Yu)
- "Impact of Rotor Design on Coaxial Rotor Performance, Wake Geometry and Noise," AHS 62nd Annual Forum, Phoenix, AZ, May 2006 (with T.R. Quackenbush).
- "On Minimum Induced Power of the Helicopter Rotor," AHS 61st Annual Forum, Grapevine, TX, May 2005 (with T.R. Quackenbush and C.L. Solomon).
- "Implementation of a Free-Vortex Wake Model in Real-Time Simulation of Rotorcraft," AHS 61st Annual Forum, Grapevine, TX, May 2005 (with J.F. Horn, D.O. Bridges and S. Rani).
- "Distributed Multi-Vehicle Simulation Including High-Order Airwake Representation," AHS 60th Annual Forum, Baltimore, MD, June 2004 (with R.M. McKillip Jr., J.D. Keller, G.R. Whitehouse, T.R. Quackenbush and A.H. Boschitsch).
- "BVI Noise Mitigation Using a Steady Flap Deflection," AHS 4th Decennial Specialist's Conference on Aeromechanics, San Francisco, CA, January 2004 (with T.R. Quackenbush).
- "First-Principles, Free-Vortex Wake Model for Helicopters and Tiltrotors," AHS 59th Annual Forum, Phoenix, AZ, May 2003 (with T.R. Quackenbush and A.H. Boschitsch).
- "Rotor Wake Evolution and Vortex Wake Encounter Analysis Methods for Terminal Area Operations," AHS 58th Annual Forum, Phoenix, AZ, June 2002 (with T.R. Quackenbush and J.D. Keller).
- "BVI Noise Predictions with a Comprehensive Rotorcraft Analysis," AHS 57th Annual Forum, Washington, DC, June 2001 (with T.R. Quackenbush).
- "Rotorcraft Interactional Aerodynamics with Fast Vortex/Fast Panel Methods," Journal of the American Helicopter Society, 48(4), October 2003 (with T.R. Quackenbush and A.H. Boschitsch).
- "Rotor Aerodynamic Loads Computation Using a Constant Vorticity Contour Free Wake Model," Journal of Aircraft, Vol.32, Number 5, Sept.-Oct., 1995, pp. 911-920 (with T. R. Quackenbush and A.H. Boschitsch).
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