Nalin’s Publications

__________________________

Publications

Note: I eventually plan to post “plain English” summaries of all of these including why the work was done and what the practical implications are of the conclusions.  Links will be added to these summaries when available.

Copyright: All unclassified publications that have been declared works of the U.S. Government, such as those which are linked below, are not subject to copyright protection in the United States. However, the work therein, if used, should still be properly cited in accordance with scientific ethics.

Disclaimer: All information on this website is the personal opinion of the listed author, and not the official position of the U.S. National Aeronautics and Space Administration (NASA) or the United States Government.

Taylor, B.R., and Ratnayake, N.A., “Flight Test of Orthogonal Square Wave Inputs for Hybrid Wing Body Parameter Estimation,” AIAA 2011-6276, 2011.

Ratnayake, N.A., Koshimoto, E.T., and Taylor, B.R., “Multi-Axis Identifiability Using Single-Surface Parameter Estimation Maneuvers on the X-48B Blended Wing Body,” AIAA 2011-6273, 2011.

Ratnayake, N.A., Waggoner, E.R., and Taylor, B.R., “Lateral-Directional Parameter Estimation on the X-48B Aircraft Using an Abstracted, Multi-Objective Effector Model,” AIAA 2011-3014, 2011.

Kloesel, K.J., Ratnayake, N.A., and Clark, C.M., “A Technology Pathway for Airbreathing, Combined-Cycle, Horizontal Space Launch Through SR-71 Based Trajectory Modeling,” AIAA 2011-2229, 2011.

Taylor, Brian R., and Ratnayake, N.A., “Simulation and Flight Evaluation of a Parameter Estimation Input Design Method for Hybrid-Wing-Body Aircraft,” AIAA 2010-7949, 2010.

Frederick, M., and Ratnayake, N.A., “Flight Test Results from the Rake Airflow Gage Experiment on the F-15B,” AIAA 2010-4573, 2010.

Ratnayake, N.A., “Analysis of a Channeled Centerbody Supersonic Inlet for F-15B Flight Research,” AIAA 2010-477, 2010.

Flynn, D.C., Ratnayake, N.A., and Frederick, M, “Design and Calibration of a Flowfield Survey Rake for Inlet Flight Research,” AIAA 2009-1484, 2009.

Mikellides, P.G. and Ratnayake, N.A., “Modeling of the Pulsed Inductive Thruster Operating with Ammonia Propellant,” AIAA-26609-298, 2007.  Also published in AIAA Journal of Propulsion and Power, 2007 0748-4658, vol 23, no. 4 (854-862).

Ratnayake, N.A. “Creation of a Custom SESAME Library for Ammonia for Use in Modeling a Pulsed Inductive Thruster.” International Conference on the Plasma Sciences, ICOPS-2006-2A4.

Mikellides, P.G., Allison, D.L., Ratnayake, N. and Booze, D. “Modeling of a Pulsed Inductive Thruster, (PIT) operating with Ammonia Propellant.” 2005 International Electric Propulsion Conference (Princeton, NJ), IEPC-2005-128.