Publications
AIAA Journal HB Stabilization
Thomas, J. P., Custer, C. H., Dowell, E. H.,
Hall, K. C., Corre, C., "Compact Implementation Strategy for a Harmonic
Balance Method within Implicit Flow Solvers," AIAA Journal, Vol. 51, No. 6, June 2013, pp. 1374-1381.
AIAA Journal POD Stabilization
Ekici, K., Hall, K. C., Huang, H., and Thomas, J. P., "Stabilization of Explicit Flow Solvers Using a Proper-Orthogonal-Decomposition Technique," AIAA Journal, Vol. 51, No. 5, May 2013, pp. 1095-1194.
SDM 2013
Thomas, J. P., Dowell, E. H., and Hall, K. C.
"Discrete Adjoint Method for Nonlinear Aeroelastic Sensitivities for
Compressible and Viscous Flows," AIAA Paper 2013-1860, 54th
AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and
Materials (SDM) Conference, Boston, MA, April, 2012.
IJCFD HB Method
Hall, K. C., Ekici, K., Thomas, J. P., and Dowell, E. H., "Harmonic Balance Methods Applied to Computational Fluid Dynamics Problems," International Journal of Computational Fluid Dynamics, Vol. 27, No. 2, 2013, pp. 52-67.
ASM 2012
Thomas, J. P., Dowell, E. H., and Hall, K. C.,
"An Automatic Differentiation Based Nonlinear Reduced Order Modeling
Technique for Unsteady Separated Flows," AIAA Paper 2012-1098, 50th AIAA
Aerospace Sciences Meeting, Nashville, TN, January 2012.
SDM 2011
Thomas, J. P. and Dowell, E. H., "Airfoil Transonic Flow Buffet Calculations Using the NASA OVERFLOW 2 Flow Solver,"
AIAA Paper 2011-2077, 52nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and
Materials (SDM) Conference, Denver, CO, April, 2011.
SDM 2010
Thomas, J. P., Custer, C. H., Dowell, E. H., and Hall, K. C., "F-16
Fighter Aeroelastic Computations Using a Harmonic Balance
Implementation of the OVERFLOW~2 Flow Solver," AIAA Paper 2010-2632,
51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and
Materials (SDM) Conference, Orlando, FL, April, 2010.
AIAA Journal NROM
Thomas, J. P., Dowell, E. H., and Hall, K. C., "Using Automatic
Differentiation to Create a
Nonlinear Reduced Order Model Aerodynamic Solver," AIAA Journal, Vol. 48, No. 1,
January 2010, pp. 19-24.
JA Transonic Airfoil Flutter
Schwarz, J. B., Dowell, E. H., Thomas, J. P., Hall, K. C., Rausch, R.
D., and Bartels, R. E., "Improved Flutter Boundary Prediction for an
Isolated Two-Degree-of-Freedom Airfoil," Journal
of Aircraft, Vol. 46, No. 6, 2009, pp.
2069-2076.
JA F16 LCO
Dowell, E. H., Thomas, J. P., Hall, K. C., and
Denegri C. M., Jr., "Theoretical Predictions of
F-16 Fighter Limit Cycle Oscillations for Flight Flutter Testing," Journal
of Aircraft, Vol. 46, No. 5, 2009, pp. 1667-1672.
AIAA CFD Conference 2009
Thomas, J. P., Custer, C. H., Dowell, E. H., and Hall, K. C., "Unsteady
Flow Computation Using a Harmonic Balance Approach Implemented about
the OVERFLOW 2 Flow Solver," AIAA Paper 2009-4270, 19th AIAA
Computational Fluid Dynamics Conference, San Antonio, TX, June, 2009.
IFASD 2009
Custer, C. H., Thomas, J. P., Dowell, E. H., and Hall, K. C., "A
Nonlinear Harmonic Balance Method for the CFD Code OVERFLOW 2,"
International Forum on Aeroelasticity and Structural Dynamics (IFASD)
Paper 2009-050, Seattle, WA, June, 2009.
ASME Turbo Expo 2009
Meingast, M., Kielb, R. E., and Thomas, J. P., "Preliminary Flutter
Design Method for Supersonic Low Pressure Turbines," ASME Paper
GT-2009-59177, Proceedings of the ASME Turbo Expo 2009: Gas Turbine
Technical Congress and Exposition, Orlando, FL. June, 2009.
AIAA Aerosciences Conference 2009
Spiker, M. A., Kielb, R. E., Thomas, J. P., and Hall, K. C.,
"Application of Enforced Motion to Study 2-D Cascade Lock-in Effect,"
AIAA Paper 2009-0892, 47th AIAA Aerospace Sciences Meeting, Orlando,
FL, January, 2009.
ASME Turbo Expo 2008
Spiker, M. A., Kielb, R. E., Hall, K. C., and Thomas, J. P., "Efficient
Design Method for Non-Synchronous Vibrations Using Enforced
Motion," ASME Paper GT-2009-50599, Proceedings
of the ASME Turbo Expo 2008: Gas Turbine Technical Congress and
Exposition,Berlin, Germany, June, 2008.
SDM 2008
Thomas, J. P., Dowell, E. H., and Hall, K. C., "Using Automatic
Differentiation to Create a Nonlinear Reduced Order Model Aeroelastic
Solver," AIAA Paper 2008-2322, 49th AIAA/ASME/ASCE/AHS/ASC Structures,
Structural Dynamics and Materials (SDM) Conference, Schaumburg, IL,
April, 2008.
SDM 2008
Schwarz, J., Dowell, E. H., Thomas, J. P., and Hall, K. C.,
"Computational Flutter Prediction for Isolated Airfoils," AIAA Paper
2008-1819, 49th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics
and Materials (SDM) Conference, Schaumburg, IL, April, 2008.
IUTAM 2007
Dowell, E. H., Hall, K. C., Thomas, J. P., Kielb, R. E., Spiker, M. A.,
and Denegri, C. M., "A New Solution
Method for Unsteady Flows Around Oscillating Bluff Bodies,"
IUTAM Symposium on Fluid-Structure Interaction in Ocean Engineering
Hamburg University of Technology Hamburg, Germany, 23-27 July 2007.
AIR FORCE T&E 2007
Thomas, J. P., Dowell, E. H., Hall, K. C., and Denegri C. M., "Virtual
Aeroelastic Flight Testing for the F-16 Fighter with Stores," AIAA
Paper
2007-1640, U.S. Air Force T&E Days, Destin, FL, February, 2007.
JFS HB AIRFOIL CUBIC NONLINERITY
Liu, L., Dowell, E. H., and Thomas, J. P., A High Dimensional Harmonic
Balance Approach for an Aeroelastic Airfoil with Cubic Restoring
Forces, Journal of Fluids and Structures, Vol. 23, No. 3, April 2007, pp. 351-363.
AIAA JOURNAL SYSTEMS ID
Attar, P. J., Dowell, E. H.,
White, J. R., and Thomas, J. P., "Reduced Order
Nonlinear System Identification Methodology," AIAA Journal, Vol. 44, No. 8, 2006,
pp. 1895-1904.
JA SDROM
Thomas, J. T., Dowell, E. H., and Hall, K. C., "Static/Dynamic
Correction Approach for Reduced-Order Modeling of Unsteady
Aerodynamics," Journal
of Aircraft, Vol. 43, No. 4, 2006, pp. 865-878.
MDO 2006
Thomas, J. P., Dowell, E. H., and Hall, K. C.,
"Using Automatic Differentiation to Create a
Nonlinear Reduced Order
Model of a Computational Fluid Dynamic Solver," AIAA Paper
2006-7115,
11th AIAA/ISSMO Multidisciplinary Analysis and Optimization Conference,
Portsmouth, VA, September, 2006.
JCP HB JUNE 2006
Liu, L., Thomas, J. P.,
Dowell, E. H., Attar, P. J., and
Hall, K. C., "A Comparison of Classical and High Dimensional Harmonic
Balance Approaches for a Duffing Oscillator," Journal of Computational Physics,
Vol. 215, No. 1, 2006, pp. 298-320.
SDM 2006
Spiker, M. A., Thomas, J. P., Kielb, R. E.,
Hall, K. C., and Dowell, E. H., "Modeling Cylinder Flow Vortex Shedding
with Enforced Motion Using a Harmonic Balance Approach," AIAA Paper 2006-1965, 47th AIAA/ASME/ASCE/AHS/ASC
Structures, Structural Dynamics and Materials (SDM) Conference,
Newport,
RI, May, 2006.
SDM 2006
Thomas, J. P., Dowell, E. H., Hall, K. C., and
Denegri, C. M., "An Investigation of the Sensitivity of F-16 Fighter
Limit Cycle Oscillations to Uncertainties,"
AIAA Paper 2006-1847, 47th AIAA/ASME/ASCE/AHS/ASC Structures,
Structural
Dynamics and Materials (SDM) Conference, Newport, RI, May, 2006.
ISUAAAT 2006 (2003 Conference)
Hall, K. C., Kielb, R. E., and Thomas, J. P., editors, Unsteady Aerodynamics, Aeroacoustics and
Aeroelasticity of Turbomachines, Springer, April 2006, ISBN:
1402042671. Proceedings of the Tenth International Symposium on
Unsteady Aerodynamics, Aeroacoustics and Aeroelasticity of
Turbomachines
held September 7-11, 2003, Duke University, Duham, NC.
AIAA JOURNAL ADJOINT HB
Thomas, J. P., Hall, K. C., and Dowell, E. H., "Discrete Adjoint Approach for Modeling
Unsteady Aerodynamic Sensitivities," AIAA
Journal, Vol. 43, No. 9, 2005, pp. 1931-1936.
SDM 2005
Thomas, J. P., Dowell, E. H., Hall, K. C., and Denegri, C. M., "Further
Investigation of Modeling Limit Cycle Oscillation Behavior of the F-16
Fighter Using a Harmonic Balance Approach," AIAA Paper 2005-1917, 46th
AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials
(SDM) Conference, Austin, TX, April, 2005.
SDM 2005
Liu, L., Dowell, E. H., and Thomas, J. P., "Higher Order Harmonic
Balance Analysis for Limit Cycle Oscillations in an Airfoil with Cubic
Restoring Forces," AIAA Paper 2005-1918, 46th
AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials
(SDM) Conference, Austin, TX, April, 2005.
RENO 2005
Carlson, H. A., Feng, J. Q., Thomas, J. P.,
Kielb, R. E., Hall, K. C., and Dowell, E. H., "Computational
Models for Nonlinear Aeroelasticity," AIAA Paper
2005-1085, 43rd AIAA Aerospace Sciences Meeting, Reno, NV, January 2005.
JA HBVISC
Thomas, J. T., Dowell, E. H., and Hall, K. C., "Modeling Viscous
Transonic Limit Cycle Oscillation Behavior Using a Harmonic Balance
Approach," Journal
of Aircraft, Vol. 41, No. 6, 2004, pp. 1266-1274.
JA TRANSONIC AIRFOIL LCO
Kholodar, D. B., Dowell, E. H., Thomas, J. P., and Hall, K. C.,
"Limit Cycle Oscillation of a Typical Airfoil in Transonic Flow," Journal of Aircraft, Vol. 41, No. 5, 2004, pp. 1067-1072.
JA FLUTTER SURFACE PAPER
Kholodar, D. B., Dowell, E. H., Thomas, J. P., and Hall, K. C.,
"Improved Understanding of Transonic Flutter: A Three-Parameter Flutter
Surface," Journal of Aircraft, Vol. 41, No. 4, 2004, pp. 911-916.
SDM 2004
Thomas, J. P., Dowell, E. H., Hall, K. C., and Denegri C. M., "Modeling
Limit Cycle Oscillation Behavior of the F-16 Fighter Using a Harmonic
Balance Approach," AIAA Paper 2004-1696, 45th AIAA/ASME/ASCE/AHS/ASC
Structures, Structural Dynamics and Materials (SDM) Conference, Palm
Springs, CA, April, 2004.
HCF 2004
Hall, K. C., Thomas, J. P., Spiker, M. A., and
Kielb, R.E., "Prediction of Non-Synchronous Vibration Using a Harmonic
Balance Technique," 9th National Turbine Engine High Cycle Fatigue
(HCF)
Conference, Village of Pinehurst, NC, March 2004.
JFS - TRANSONIC AIRFOIL POD
Dowell, E. H., Thomas, J. T., and Hall, K. C.,
"Transonic Limit Cycle Oscillation Analysis Using Reduced Order
Aerodynamic Models," Journal of Fluids and Structures,
Vol. 19, No. 1, 2004, pp. 17-27.
FDEC 2003
Hall, K. C., Thomas, J. P., Ekici, K., and Voytovich, D. M., "Frequency
Domain Techniques for Complex and Nonlinear Flows in Turbomachinery,"
AIAA Paper 2003-3998, 33rd AIAA Fluid Dynamics Conference
and Exhibit, Orlando, FL, June 2003.
TURBO 2003
Kielb, R. E., Barter, J. W., Thomas, J. P., and
Hall, K. C., "Blade Excitation by Aerodynamic Instabilities - A
Compressor Blade Study," ASME
Paper GT-2003-38634, Presented at the ASME
Turbo-Machinery Exposition, Atlanta, GA, June, 2003.
JA PODROM3D
Thomas, J. T., Dowell, E. H., and Hall, K. C., "Three-Dimensional
Aeroelasticity Using Proper Orthogonal Decomposition Based Reduced
Order
Models," Journal of Aircraft,
Vol. 40, No. 3, 2003, pp. 544-551.
SDM 2003
Thomas, J. P., Hall, K. C., and Dowell, E. H., "A Harmonic Balance
Approach for Modeling Nonlinear Aeroelastic Behavior of Wings in
Transonic Viscous Flow," AIAA Paper 2003-1924, 44th
AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials
(SDM) Conference, Norfolk, VA, April 2003.
SDM 2003
Thomas, J. P., Dowell, E. H., and Hall, K. C., "Modeling Limit Cycle
Oscillations for an NLR 7301 Airfoil Aeroelastic Configuration
Including
Correlation with Experiment," AIAA Paper 2003-1429, 44th
AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials
(SDM) Conference, Norfolk, VA, April 2003.
JA AIRFOIL FLUTTER
Kholodar, D. B., Thomas, J. P., Dowell, E. H., and Hall, K. C.,
"Parametric Study of Flutter for an Airfoil in Inviscid Transonic
Flow," Journal of Aircraft, Vol. 40, No. 2, 2003, pp. 303-313.
RENO 2003
Thomas, J. P., Hall, K. C., and Dowell, E. H., "A
Discrete Adjoint Approach for Modeling Unsteady Aerodynamic Design
Sensitivities," AIAA Paper 2003-0041, 41st AIAA
Aerospace Sciences Meeting, Reno, NV, January 2003.
ASME 2002
Thomas, J. P., Dowell, E. H., and Hall, K. C., "A Harmonic Balance
Approach for Modeling Three-Dimensional Nonlinear Unsteady Aerodynamics
and Aeroelasticity," ASME Paper IMECE-2002-32532, Proceedings of the
ASME International Mechanical Engineering Conference and Exposition,
New
Orleans, LA, November, 2002.
AIAA JOURNAL HB
Hall, K. C., Thomas, J. P., and Clark, W. S., "Computation of Unsteady
Nonlinear Flows in Cascades Using a Harmonic Balance Technique," AIAA Journal, Vol. 40, No. 5, 2002,
pp. 879-886.
AIAA JOURNAL HBLCO
Thomas, J. P., Dowell, E. H., and Hall, K. C., "Nonlinear Inviscid
Aerodynamic Effects on Transonic Divergence, Flutter and Limit Cycle
Oscillations," AIAA Journal,
Vol. 40, No. 4, 2002, pp. 638-646.
HCF 2002
Hall, K. C., and Thomas, J. P., "Sensitivity
Analysis of Coupled Aerodynamic/Structural Dynamic Behavior of Blade
Rows," 7th National Turbine Engine High Cycle Fatigue (HCF) Conference,
Palm Beach Gardens, FL, May 2002.
SDM 2002
Thomas, J. T., Dowell, E. H., and Hall, K. C.,
"Modeling Viscous Transonic Limit Cycle Oscillation Behavior Using a
Harmonic Balance Approach," AIAA Paper 2002-1414, 43rd
AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials
(SDM) Conference, Denver, CO, April, 2002.
Accepted for Publication - Journal
of
Aircraft.
SDM 2002
Kholodar, D. B., Thomas, J. P., Dowell, E. H., and Hall, K. C., "A
Parametric Study of Transonic Airfoil Flutter and Limit Cycle
Oscillation Behavior," AIAA Paper 2002-1211, 43rd AIAA/ASME/ASCE/AHS/ASC
Structures, Structural Dynamics and Materials
(SDM) Conference, Denver, CO, April, 2002. Now
Appears in Journal of Aircraft, Vol.
40, No. 2, 2003, pp. 303-313.
SDM 2001
Thomas, J. P., Dowell, E. H., and Hall, K. C., "Three-Dimensional Aeroelasticity Using Proper Orthogonal
Decomposition Based Reduced Order Models," AIAA Paper 2001-1526, 42nd AIAA/ASME/ASCE/AHS/ASC
Structures, Structural Dynamics and Materials (SDM) Conference,
Seattle,
WA, April 2001. Now Appears in Journal of Aircraft, Vol. 40, No.
3, 2003,
pp. 544-551.
SDM 2001
Dowell, E. H., Thomas, J. T., and Hall, K. C., "Transonic Limit Cycle
Oscillation Analysis Using Reduced Order Aerodynamic Models," AIAA
Paper
2001-1212, 42nd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics
and Materials (SDM) Conference, Seattle, WA, April, 2001. Now
Appears in Journal
of Fluids and Structures, Vol. 19, No. 1, 2004, pp. 17-27.
SDM 2001
Thomas, J. P., Dowell, E. H., and Hall, K. C., "Nonlinear Inviscid Aerodynamic Effects on Transonic
Divergence, Flutter and Limit Cycle Oscillations," AIAA Paper 2001-1209, 42nd AIAA/ASME/ASCE/AHS/ASC
Structures, Structural Dynamics and Materials (SDM) Conference,
Seattle,
WA, April 2001. Now Appears in AIAA Journal, Vol. 40, No. 4, 2002,
pp. 638-646.
RENO 2001
Thomas, J. T., Dowell, E. H., and Hall, K. C., "A Static/Dynamic
Correction Approach for Reduced-Order Modeling of Unsteady
Aerodynamics," AIAA Paper 2001-0855, 39th Aerospace Sciences Meeting
Exhibit, Reno, NV, January 2001. Accepted for Publication - Journal of Aircraft.
AIAA PODROM
Hall, K. C., Thomas, J. P., and Dowell, E. H., "Proper Orthogonal Decomposition
Technique for Transonic Unsteady Aerodynamic Flows," AIAA Journal, Vol. 38, No. 10,
2000, pp. 1853-1862.
ISUAAAT LYON 2000
Hall, K. C., Thomas, J. P., and Clark, W. S., "Computation of Unsteady Nonlinear Flows in Cascades Using a
Harmonic Balance Technique,"
9th International Symposium on Unsteady Aerodynamics, Aeroacoustics and
Aeroelasticity of Turbomachines (ISUAAAT), Lyon, France, September
2000. Now Appears in AIAA Journal, Vol. 40, No. 5, 2002,
pp. 879-886.
AEROELASTICITY FORUM 1999
Thomas, J. T., Hall, K. C., and Dowell, E. H., "Reduced-Order
Aeroelastic Modeling Using Proper-Orthogonal Decompositions,"
CEAS/AIAA/ICASE/NASA Langley International Forum on Aeroelasticity and
Structural Dynamics 1999, Williamsburg, VA, June 1999.
ENGINEERING MECHANICS
Dowell, E. H., Hall, K. C., Thomas, J. P., and Florea, R., "Reduced Order Models in Unsteady
Aerodynamics," Engineering Mechanics, Vol. 6,
1999, No. 4/5, p.229-252.
SDM 1999
Dowell, E. H., Hall, K. C., Thomas, J. P.,
Florea, R., Epureanu, B. I., and Heeg, J. "Reduced Order Models in Unsteady Aerodynamics," AIAA Paper 99-1261, 40th
AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials
(SDM) Conference, St. Louis, MO, April 1999. Now Appears in Engineering Mechanics,
Vol. 6, 1999, No. 4/5, p.229-252.
RENO 1999
Hall, K. C., Thomas, J. P., and Dowell, E. H., "Reduced-Order Modelling of
Unsteady Small-Disturbance Flows Using a Frequency-Domain Proper
Orthogonal Decomposition Technique," AIAA Paper
99-0655, 37th Aerospace Sciences Meeting Exhibit, Reno, NV, January
1999. Now Appears in AIAA Journal, Vol. 38, No. 10,
2000, pp. 1853-1862.
AIAA CFD CONFERENCE 1997
Kim, C., Roe, P. L., and Thomas, J. P.,
"Accurate Schemes for Advection and Aeroacoustics,"
AIAA Paper 97-2091, 13th AIAA Computational
Fluid
Dynamics Conference, Snowmass Village, CO, June, 1997. Collection of
Technical Papers. Pt. 1. (A97-32407 08-34).
AIAA CFD CONFERENCE 1995
Thomas, J. P., Kim, C., and Roe, P. L.,
"Progress Towards a New Computational Scheme for Aeroacoustics," AIAA Paper 95-1758, 12th AIAA
Computational Fluid Dynamics Conference, San Diego, CA, June, 1995.
Collection of Technical Papers. Pt. 2. (A95-36501 09-34).
AIAA CFD CONFERENCE 1993
Thomas, J. P., and Roe, P. L., "Development of
Non-Dissipative Numerical Schemes for Computational Aeroacoustics," AIAA
Paper 93-3382, 11th AIAA Computational Fluid
Dynamics Conference, Orlando, FL, June, 1993.
AIAA APPLIED AERODYNAMICS CONFERENCE 1991
Thomas, J. P., and Lan, C. E., "The Simulation and Correction of Wind
Tunnel Wall Interference of Delta Wing Lift Using Navier-Stokes and
Euler Solution," AIAA Paper 91-3300, 9th AIAA Applied Aerodynamics
Conference, Baltimore, MD, September, 1991.