Publications

Peer Reviewed Journal publications and Book Chapters

 

1. Keanini, R. G., Srivastava, N., Tkacik, P. T., Weggel, D. C., Knight, P. D. ,”Stochastic Rocket Dynamics Under Random Nozzle Side Loads Ornstein-Uhlenbeck Boundary Layer Separation and its Coarse Grained Connection to Side Loading and Rocket Response (abstract)”, Annalen der Physik (also uploaded in ArXiv). 

 

2. Tkacik, P. T., Keanini, R. G., Srivastava, N., and Tkacik, M. P., “Color Schlieren Imaging of High-Pressure Overexpanded Planar Nozzle Flow using a Simple, Low-Cost Test Apparatus (abstract)”, DOI: 10.1007/s12650-010-0056-8 Journal of Visualization, 2010.

 

3. Srivastava, N., Keanini, R. G., and Tkacik, P.T., “Influence of nozzle random side loads on launch vehicle dynamics (abstract)“, The Journal of Applied Physics, published August 2010.

 

4. Keanini, R. G., Srivastava, N., Tkacik, P. T., Weggel, D. C., Knight, P. D. ,”Stochastic Rocket Dynamics Under Random Nozzle Side Loads Ornstein-Uhlenbeck Boundary Layer Separation and its Coarse Grained Connection to Side Loading and Rocket Response (abstract)”, Cornell University Library, ArXiv 1101.3789, 19 January 2011.

 

Peer Reviewed Conference and Symposium publications

 

1. Tkacik, P.T., and Lim, J., ASEE 119th Annual Conference & Exposition “Gendered Socialization during the First Semester Contrasting Experiences of Male and Female Transfer Non-traditional Engineering Students abstract“, San Antonio, Texas, June 2012.

 

2. Bowen, J., Tkacik, P.T., and Warren, K., ASEE 118th Annual Conference & Exposition “Combining Hands-On Design, Engineering Analysis, and Computer Programming in a Freshman Civil and Environmental Engineering Course (abstract)“, Vancouver, B. C., June 2011.

 

3. Lim, J., Tolley, P. A., Warren, K., and Tkacik, P.T., ASEE 118th Annual Conference & Exposition “The Freshman Engineering Experience Results from a Mixed-Method Evaluation Study abstract“, Vancouver, B. C., June 2011.

 

4. Hellman, S. E., Tkacik, P. T., Uddin, M., Kelly, S., 11MSEC-0015 “Experimental Analysis of Flow Past NASCAR COT Rear Wing Versus Spoiler Traveling Forward and Backwards using PIV Measurements and Flow Visualization”, 2011 Society of Automotive Engineers World Congress, April 2011.

 

5. Buskirk, B. C., Tkacik, P.T., and Horton, J., 11MSEC-0016 “Vehicle Transmission Inertia Test Protocol abstract”, 2011 Society of Automotive Engineers World Congress, April 2011.

 

6. Hellman, S. E., Tkacik, P. T., Uddin, M., Kelly, S., “PIV Analysis Comparing Aerodynamic Downforce Devices on Race Car in Water Tunnel”, 63rd Annual Meeting of the American Physical Society-Division of Fluid Dynamics, Long Beach, CA, December 2010.

 

7. Hellman, S. E., and Tkacik, P. T., “PIV visualization of flow over race car body in water tunnel”, 63rd Annual Meeting of the American Physical Society-Division of Fluid Dynamics, Gallery of Fluid Motion, Long Beach, CA, December 2010.

 

8. Tkacik, P. T., Baseda, D., Hellman, S. E., Srivastava, N., Keanini, R. G., and Tkacik, M. P., “Color Schlieren Imaging of Internal Shock Structure in Super Sonic Planar Rocket Nozzle”, 63rd Annual Meeting of the American Physical Society-Division of Fluid Dynamics, Gallery of Fluid Motion, Long Beach, CA, December 2010.

 

9. Tkacik, P. T., Baseda, D., Hellman, S. E., Srivastava, N., Keanini, R. G., and Tkacik, M. P., “Color Schlieren Imaging of Shock Diamonds of Air Jet from Nozzle”, 63rd Annual Meeting of the American Physical Society-Division of Fluid Dynamics, Gallery of Fluid Motion, Long Beach, CA, December 2010.

 

10. Hellman, S. E., Uddin, M., Tkacik, P. T., Kelly, S., Proceedings of the 13th Asian Congress of Fluid Mechanics, “Experimental Investigations on Racecar Spin-Aero Using Scale Model NASCAR COT (abstract)”, Dhaka, Bangladesh, 17-21 December 2010.

 

11. Kadire, N. R., Tkacik, P.T., Merrill, Z. A. and Nimmagadda, P., “Sensing Proximity to Trailer Rollover Theoretical and Experimental Analysis“, 2009 SAE Commercial Vehicle Engineering Congress and Exhibition October 2009.

 

12. Nimmagadda, P., Tkacik, P.T., Merrill, Z. A. and Kadire, N. R., 2009 SAE Commercial Vehicle Engineering Congress and Exhibition “Human Sensitivity in Forced Feedback Systems as a Function of Frequency and Amplitude of Steering Wheel Vibrations (abstract)“, October 2009.

 

13. Tkacik, P.T., Hellman, S., “Design and Construction of the UNC Charlotte Water Tunnel (abstract)”, 2008 SAE Motorsports Conference, December 2008.

 

14. Tkacik, P.T., “Racing to Learn Engineering (abstract)”, Proceedings of the 2008 ASEE Zone 1 Conference, West Point, NY, April 2008

 

15. Tkacik, P.T., “A Method for Improving the Friction Level Consistency of Sandpaper for use in Cornering Measurements of Tires”, Society of Automotive Engineers, Presented at the Worldwide Passenger Car Conference and Exposition, October, 1993

 

16. Gall R., Tkacik, P.T., and Andrews, M.A., “On the Incorporation of Frictional Effects in the Contact Area – Tire/Ground,” Tire Science and Technology, TSTCA, Vol. 21, No. 1, March, 1993. Award received for “Excellence of Presentation and Significance of Content”.

 

17. Gall, R. and Tkacik, P.T., “On the Incorporation of Frictional Effects in the Contact Area – Tire/Ground”, presented at the First National Congress on Computational Mechanics, July 1991.

 

invited seminars

 

18. Tkacik, P. T., “Keynote Speaker” for the NC Junior Science & Humanities Symposium designed to challenge and engage students (Grades 9-12) in science, technology, engineering or mathematics (STEM), March 21, 2011.

 

publications out for review

 

19. Hellman, S. E., Tkacik, P. T., Uddin, M., Kelly, S., Turbulent Shear Flow Phenomena, “Interaction of Rear-End Vortices with Racecar Body at Extreme Yaw: A NASCAR COT Case Study”, July 28 – 31, 2011 Ottawa, Canada (in review).

 

Books

 

20. Keanini, R. G., Nortey, T. D., Thorsett-Hill, K., Srivastava, N., and Tkacik, P. T., “Shock-induced boundary layer separation and its connection to stochastic rocket ascent”, Book Chapter in “Mass Transfer / Book 3”, by Dr. Prof. Jozef Markoa, InTech open access publishers ISBN 978-953-308-74-5, http://www.intechopen.com/articles/show/title/shock-induced-turbulent-boundary-layer-separation-in-over-expanded-rocket-nozzles-physics-models-ran.

 

21. General Reading Nature Book; “Musings of a Carolina Naturalist”, the description, TOC, did not make it through the first review at the UNC Press, Chapel Hill.

 

22. Writing book; “A Field Guide to Woody Vines of Eastern North America”. This effort includes the: botanical research, a complete collection of botanical illustrations, three separate identification keys, a set of identification ‘thumbprints’ index, table of contents, summary of botanical definitions. Currently at page 228.

 

23. Writing a children’s book; “Airport in the Sky – Amelia’s adventure on the US Navy’s real life flying Aircraft Carrier” on the dirigible, the USS Akron, including text and illustrations. It intertwines an adventure story for a little girl and places it in the context of one of America’s greatest aeronautical accomplishments.

 

Presentations and Other Research Activities

 

Professional Meeting Papers, Workshops

 

24. Kadire, N. R., Tkacik, P.T., Nimmagadda, P., 2009 SAE Heavy Truck Handling, Dynamics & Control Symposium (presentation only) “Real-Time Heavy Truck Rollover Warning System“, April 2008.

 

25. Nimmagadda, P., Tkacik, P.T., Kadire, N. R., 2009 SAE Heavy Truck Handling, Dynamics & Control Symposium (presentation only) “Steering Wheel Haptic Feedback System for Indication and Rollover Avoidance in a Heavy Commercial Vehicle“, April 2008.