The Taira Lab (CFD Lab)

Point of Contact: Kunihiko Taira
Assistant Professor of Mechanical Engineering
Florida A&M University/Florida State University
2003 Levy Avenue, AME Research Center, Tallahassee, Florida 32310
email: ktaira[at]fsu.edu, tel: +1-850-645-0140
office: AME 216, lab: AME 107

Welcome
Our group studies a variety of fluid mechanics problems with CFD (computational fluid dynamics). We are located in the AME Research Building on the Engineering Campus at the Florida State University.

Annoucement
We are currently seeking 1-2 enthusiastic Ph.D. students to join our group from summer or fall of 2013. Potential students should have strong math and fluids background. Candidates with programming experience and familiarity with Linux are desired. Successful candidates will have full support during the course of his/her Ph.D. program. If you are interested, please email Prof. Taira.

Research interests
Computational fluid dynamics
Active flow control
Unsteady aerodynamics
Vortex dynamics
Hydrodynamic stability
Fluid-structure interaction

Group members
Kunihiko Taira (Assistant professor, [CV], ktaira[at]fsu.edu)
Phillip Munday (Graduate research assistant-Ph.D., 2011-)
Ryan Gantzen (Graduate research assistant-Ph.D., 2012-)
Yiyang Sun (Graduate research assistant-Ph.D., 2012-)
Colby Borchetta (Undergraduate research assistant, 2012-)

Past members
Bereket Abraham (Summer NSF-REU student, 2012)
Casey Brown (Undergraduate research assistant, 2012)

Courses
2013 (Spring): EML5930, CFD for incompressible flows (graduate)
2012 (Fall): EML5709, Fluid mechanics (graduate)
2012 (Spring): EML5930, CFD for incompressible flows (graduate)
2011 (Fall): EML5709, Fluid mechanics (graduate)

Publications

• ----------------------------- 2013 -----------------------------
• P. M. Munday and K. Taira, On the Lock-On of Vortex Shedding to Oscillatory Actuation Around a Circular Cylinder, Physics of Fluids, 25, 013601, 2013 [pdf, link].
• R. Jantzen, K. Taira, K. Granlund, and M. Ol, On The Influence of Pitching and Acceleration on Vortex Dynamics Around Low-Aspect-Ratio Rectangular Wings, 51st AIAA Aerospace Sciences Meeting and Exhibit, Grapevine, TX, Jan. 2013 [pdf].
• K. Granlund, M. Ol, K. Taira, and R. Jantzen, Parameter Studies on Rotational and Translational Accelerations of Flat Plates, 51st AIAA Aerospace Sciences Meeting and Exhibit, Grapevine, TX, Jan. 2013.
• ----------------------------- 2011 -----------------------------
• K. Taira, Proper Orthogonal Decomposition in Fluid Flow Analysis: 2. Applications, Nagare-Journal of Japan Society of Fluid Mechanics (in Japanese), 30(3), 115-123, 2011 [link].
• K. Taira, Proper Orthogonal Decomposition in Fluid Flow Analysis: 1. Introduction, Nagare-Journal of Japan Society of Fluid Mechanics (in Japanese), 30(2), 263-271, 2011 [link].
• ----------------------------- 2010 -----------------------------
• K. Taira, C. W. Rowley, T. Colonius, and D. R. Williams, Lift Enhancement for Low-Aspect-Ratio Wings with Periodic Excitation, AIAA Journal, 48(8), 1785-1790, 2010 [pdf].
• K. Taira, C. W. Rowley, and T. Colonius, Lock-On to a High-Lift State with Oscillatory Forcing in a Three-Dimensional Wake Flow, Active Flow Control Conference II, Berlin, Germany, May 2010 [pdf].
• K. Chen, T. Colonius, and K. Taira, The Leading-Edge Vortex and Quasi-Steady Vortex Shedding on an Accelerating Plate, Physics of Fluids, 22, 033601, 1-11, 2010 [pdf].
• K. Taira, C. W. Rowley, and T. Colonius, Feedback Control of High-Lift State for A Low-Aspect-Ratio Wing, 48th AIAA Aerospace Sciences Meeting and Exhibit, Orlando, FL, Jan. 4-7, 2010 (AIAA 2010-357) [pdf].
• ----------------------------- 2009 -----------------------------
• K. Taira and T. Colonius, Effect of Tip Vortices in Low-Reynolds-Number Poststall Flow Control, AIAA Journal, 47(3), 749-756, 2009 [pdf].
• K. Taira and T. Colonius, Three-Dimensional Flows around Low-Aspect-Ratio Flat-Plate Wings at Low Reynolds Numbers, Journal of Fluid Mechanics, 623, 187-207, 2009 [pdf].
• K. Taira, C. W. Rowley, and T. Colonius, The Fast Immersed Boundary Projection Method, Academy/EUROMECH/ERCOFTAC Colloquium - Immersed Boundary Methods: Current Status and Future Research Directions, Amsterdam, Netherlands, June 15-17, 2009 [pdf].
• K. Taira, C. W. Rowley, and T. Colonius, Control of Unsteady Vortices around Low-Aspect-Ratio Wings, 1000 Islands Fluid Mechanics Meeting, Gananoque, Ontario, Canada, May 1-3, 2009 [pdf].
• K. Taira, and T. Colonius, On the Effect of Tip Vortices in Low-Reynolds-Number Post-Stall Flow Control, 47th AIAA Aerospace Sciences Meeting and Exhibit, Orlando, FL, Jan. 5-8, 2009 (AIAA 2009-0376) [pdf].
• ----------------------------- 2008 -----------------------------
• T. Colonius and K. Taira, A Fast Immersed Boundary Method using a Nullspace Approach and Multi-Domain Far-Field Boundary Conditions, Computer Methods in Applied Mechanics and Engineering, 197, 2131-2146, 2008.
• C. W. Rowley, S. Ahuja, K. Taira, and T. Colonius, Closed-Loop Control of Leading Edge Vorticity on a 3D Wing: Simulations and Low-Dimensional Models, 5th AIAA Theoretical Fluid Mechanics Conference, Seattle, WA, June 23-36, 2008 (AIAA 2008-3981).
• G. Tadmor, D. Bissex, B. R. Noack, M.Morzynski, T. Colonius, and K. Taira, Temporal-Harmonic Specific POD Mode Extraction, 4th AIAA Flow Control Conference/38th Fluid Dynamics Conference and Exhibit, Seattle, WA, June 23-26, 2008 (AIAA 2008-4190).
• G. Tadmor, D. Bissex, B. R. Noack, M. Morzynski, T. Colonius, and K. Taira, Fast Approximate POD for a Flat Plate benchmark with a Time Varying Angle of Attack, 4th AIAA Flow Control Conference/38th Fluid Dynamics Conference and Exhibit, Seattle, WA, June 23-26, 2008 (AIAA 2008-4191).
• W. T. Joe, K. Taira, T. Colonius, D. G. MacMynowski, and G. Tadmor, Closed-Loop Control of Vortex Shedding on a Two-Dimensional Flat-Plate Airfoil at a Low Reynolds Number, 46th AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV, Jan. 7-10, 2008 (AIAA 2008-0634).
• S. Brunton, C. Rowley, K. Taira, T. Colonius, J. Collins, and D. Williams, Unsteady Aerodynamic Forces on Small-Scale Wings: Experiments, Simulations, and Models, 46th AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV, Jan. 7-10, 2008 (AIAA 2008-0520).
• ----------------------------- 2007 -----------------------------
• K. Taira and T. Colonius, The Immersed Boundary Method: A Projection Approach, Journal of Computational Physics, 225(2), 2118-2137, 2007.
• K. Taira and T. Colonius, Three-Dimensional Simulation of Flow around a Rectangular Flat Plate, 5th Conference on Bluff Body Wakes and Vortex-Induced Vibrations, Costa do Sauipe, Bahia, Brazil, Dec. 12-15, 2007.
• K. Taira, W. Dickson, T. Colonius, M. Dickinson, and C. W. Rowley, Unsteadiness in Flow over a Flat Plate at Angle-of-Attack at Low Reynolds Numbers, 45th AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV, Jan. 8-11, 2007 (AIAA 2007-710).
• ----------------------------- 2006 -----------------------------
• J. I. Frankel, G. E. Osborne, and K. Taira, Stabilization of Ill-Posed Problems through Thermal Rate Sensors, Journal of Thermophysics and Heat Transfer, 20(2), 238-246, 2006.
• T. Colonius, C. W. Rowley, G. Tadmor, D. R. Williams, K. Taira, W. B. Dickson, M. Gharib, and M. Dickinson, Closed-Loop Control of Leading-Edge and Tip Vortices for Small UAV, Conference on Active Flow Control, DFG, Berlin, Sep. 27-29, 2006.
• ----------------------------- 2005 -----------------------------
• J. I. Frankel and K. Taira, Integral Equation Formulation and Error Estimation for Radial Flow Between Two Flat Disks, Journal of Computational and Applied Mathematics, 181(1), 103-124, 2005.
• ----------------------------- 2004 -----------------------------
• J. I. Frankel, M. Keyhani, and K. Taira, In-Phase Error Estimation of Experimental Data and Optimal First Derivatives, AIAA Journal, 42(5), 1017-1024, 2004.
• ----------------------------- 2003 -----------------------------
• J. I. Frankel, M. Keyhani, and K. Taira, Error Estimation in Experimental Data and Optimal Functional Representations, 6th ASME-JSME Thermal Engineering Joint Conference, Kohala Coast, HI, Mar. 16-20, 2003 (TED-AJ03-622).
• J. I. Frankel, and K. Taira, The Use of Parameter Identification in Error Estimation, 22nd IASTED International Conference on Modeling, Identification and Control (MIC 2003), Innsbruck, Austria, Feb. 10-13, 2003 (ISBN: 0-88986-343-1, pp. 90-95, ACTA Press).
• J. I. Frankel, M. Keyhani, and K. Taira, In-Phase Error Estimation of Experimental Data and Optimal First Derivatives, 41st AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV, Jan. 6-9, 2003 (AIAA-2003-516).
• ----------------------------- 2002 -----------------------------
• J. I. Frankel, M. Keyhani, and K. Taira, A Modified Discrete Least-Squares Method for Optimal Solutions in Inverse Problems, 40th AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV, Jan. 14-17, 2002 (AIAA 2002-0657).
• K. Taira, J. I. Frankel and M. Keyhani, Metric Analysis for the Modified Discrete Least-Squares Method, 40th AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV, Jan. 14-17, 2002 (AIAA 2002-0658).

© Kunihiko Taira