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Dr. Chad M. Winkler - Adjunct Professor

Journal Papers:

Mani, M., Rider, B., Sclafani, T., Winkler, C., Vassberg, J., Dorgan, A., Cary, A., and Tinoco, E., “RANS Technology for Transonic Drag Prediction: A Boeing Perspective of the 4th Drag Prediction Workshop,” Submitted to J. Aircraft, 2013. In review.

Langtry, R., Larssen, J. V., Winkler, C. M., Dorgan, A. J., and Mani, M., “DES and Acoustic Prediction of Rudimentary Landing Gear Experiment using Unstructured Finite Volume Methods”, Flow, Turbulence, and Combustion, 91(3): pp. 717-745, 2013 (invited).

Sclafani, A., Vassberg, J., Winkler, C., Dorgan, A., Mani, M., Olsen, M., and Coder, J., “DPW-5 Analysis of the CRM in a Wing-Body Configuration using Structured and Unstructured Meshes”, submitted to J. Aircraft, in review.

Winkler, C. M., and Rani, S. L., Relative Importance of the Lift Force on Heavy Particles Due to Turbulence Driven Secondary Flows, Powder Technology, 190(3): pp. 310-318, 2009.

Edward N. Tinoco, Venkat Venkatakrishnan , Chad Winkler, and Mori Mani, Structured and Unstructured Solvers for the 3rd CFD Drag Prediction Workshop (Invited), AIAA J. Aircraft, 45(3), pp. 738-749, May-June 2008.

Winkler, C. M., and Rani, Sarma L., Evaluation of Subgrid Scale Kinetic Energy Models in Large Eddy Simulations of Turbulent Channel Flow, Int. J. of Numerical Methods for Heat & Fluid Flow, 16(2), pp. 226-239, 2006. -Selected to appear in the May 2006 Monthly Highlights on the Emerald Publishing website. One of only 10 noteworthy articles selected from 450 articles for inclusion.

Winkler, C. M., Rani, S. L., and Vanka, S. P., Large Eddy Simulations of Particle Deposition by Secondary Flows in a Square Duct, Powder Technology, 170(1): pp. 12-25, 2006.

Vanka, S. P., Lou, G., and Winkler, C. M., Numerical Study of Scalar Mixing in Curved Channels at Low Reynolds Numbers, AIChE Journal, 50(10): pp. 2359-2368, 2004.

Rani, S. L., Winkler, C. M., and Vanka, S. P., Numerical Simulations of Turbulence Modulation by Dense Particles in a Fully Developed Pipe Flow, Powder Technology, 141(1-2): pp. 80-99, 2004.

Winkler, C. M., Rani, S. L., and Vanka, S. P., Preferential Concentration of Particles in a Fully Developed Turbulent Square Duct Flow, Int. J. Multiphase Flow, 30(1): pp. 27-50, 2004.

Rani, S. L, Winkler, C. M., and Vanka, S. P., A New Algorithm for Computing Binary Collisions in Dispersed Two-Phase Flows, Numerical Heat Transfer, Part B: Fundamentals, 45(1): pp. 99-107, 2004.

Winkler, C. M., and Peters, J. E., Refrigerant Droplet Size Measurements in Conjunction with a Novel Method for Improving Flow Distribution in Evaporators, Aerosol Sci. and Technology, 34: pp. 734-741, 2002.

Winkler, C. M., and Chen, T. S., Mixed Convection in Film Condensation from Isothermal Vertical Surfaces - The Entire Regime, Int. J. Heat Mass Transfer, 43(17): pp. 3245-3251, 2000.

Winkler, C. M., Chen, T. S., and Minkowycz, W. J., Film Condensation of Saturated and Superheated Vapors Along Isothermal Vertical Surfaces in Mixed Convection, Numerical Heat Transfer Part A-Applications, 36(4): pp. 375-393, 1999.

Conferences:

Winkler, C. M., and Dorgan, A. J., “BCFD Analysis for the 1st AIAA Propulsion Workshop: Nozzle Results”, AIAA 2013-3731, invited paper, 2013.

Dorgan, A. J. and Winkler, C. M., “BCFD Analysis for the 1st AIAA Propulsion Workshop: S-Duct Results”, AIAA 2013-3792, invited paper, 2013.

Winkler, C. M., Dorgan, A. J., and Mani, M., “A Simple Alternative to Unsteady Stress-Flux RANS/LES Models,” AIAA 2013-2840.

Winkler, C. M., Dorgan, A. J., and Mani, M., “Refinement of a Two-Equation Hybrid RANS/LES Model in BCFD,” AIAA 2013-3079.

Mani, M., Babcock, D. A., Winkler, C. M., and Spalart, P. R., “Predictions of a Supersonic Turbulent Flow in a Square Duct,” AIAA 2013-0860.

Sclafani, A., Vassberg, J., Winkler, C., Dorgan, A., Mani, M., Olsen, M., and Coder, J., “DPW-5 Analysis of the CRM in a Wing-Body Configuration using Structured and Unstructured Meshes”, AIAA 2013-0048.

Winkler, C. M. “BCFD Results for the AIAA Propulsion Workshop: Nozzle Results,” 1st AIAA Propulsion Aerodynamics Workshop, Atlanta, GA July 2012.

Mani, M., Babcock, D., and Winkler, C., “Supersonic Corner Flows in Presence of Shock/Boundary Layer Interaction,” Turbulence Model Benchmarking Working Group, New Orleans, LA, June 26, 2012.

Winkler, C. M., and Dorgan, A. J., “BCFD Results for the 5th AIAA Drag Prediction Workshop”, 5th AIAA Drag Prediction Workshop (DPW5), New Orleans, LA, June 2012.

Winkler, C. M., Dorgan, A. J., Mani, M., Larssen, J. V., and Langtry, R., “Grid Sensitivity of the Rudimentary Landing Gear using Unstructured Finite Volume Methods,” 18th AIAA/CEAS Aeroacoustics Conference(33rd AIAA Aeroacoustics Conference), Colorado Springs, CO, June 2012.

 Winkler, C. M., Dorgan, A. J., Larssen, J. V., Langtry, R., and  Mani, M., “Predictions of Rudimentary Landing Gear Noise: BANC-II Workshop,” AIAA BANC II Workshop, Colorado Springs, CO, June 2012.

 Winkler, C. M., Dorgan, A. J., Mani, M., Larssen, J. V., and Langtry, R., “DES and Acoustic Prediction of Rudimentary Landing Gear Experiment using Unstructured Finite Volume Methods”, ETMM-9, Greece, 2012.

Winkler, C.M., Dorgan, A. J., and Mani, M., "A Reduced Dissipation Approach for Unsteady Flows on Unstructured Grids", AIAA Aerospace Sciences Meeting, Jan 2012, Tennessee (submitted).

Winkler, C. M., Dorgan, A. J., and Mani, M., "Scale Adaptive Simulations of Turbulent Flows on Unstructured Grids", AIAA Summer Fluids Conference 2011, Hawaii, AIAA 2011-3559.

Bottalla, J., Bragg, M., Winkler, C., and Sheahan, J., "Performance of an Airfoil with a Power-Saving Tab-Assisted Flap System," AIAA Summer Fluids Conference 2011, Hawaii, AIAA 2011-3810.

Winkler, C., Dorgan, A., and Mani, M., "The Effect of Unstructured Grid Topology and Resolution on Simulations of Decaying Turbulence," 27th Congress of the International Council of the Aeronautical Sciences (ICAS), paper number 682, Nice, France, 2010.

Mani, M., Rider, B., Sclafani, T., Winkler, C., Vassberg, J., Dorgan, A., Cary, A., and Tinoco, E., "RANS Technology for Transonic Drag Prediction: A Boeing Perspective of the 4th Drag Prediction Workshop," AIAA 2010-4221, Summer Fluids Conference, 2010.

Winkler, C. M., and Vanka, S. P., Particle Dispersion and Deposition in a Curved Duct, ASME International Mechanical Engineering Conference and Exposition, Lake Buena Vista, IMECE2009-12970, Nov 13-19, 2009.

Winkler, C., Dorgan, A., Cary, A., and Mani, M., BCFD Analysis of the NASA Common Research Model for the 4th Drag Prediction Workshop, The 4th AIAA Drag Prediction Workshop (DPW4), San Antonio, June 20-21, 2009.

Winkler, C. M., Dorgan, A., and Mani, M., A Hybrid, Dynamic Large Eddy Simulation Method, 26th International Congress of the Aeronautical Sciences, Paper #392, Anchorage, Alaska, 2008.

Edward N. Tinoco, Chad Winkler, Mori Mani, and Venkat Venkatakrishnan, Structured and Unstructured Solvers for the 3rd CFD Drag Prediction Workshop (Invited), AIAA-2007-0255, , 45th AIAA Aerospace Sciences Meeting, Reno 2007.

M. Mani, C. M. Winkler, M. S. Fisher, and S. A. Mackie, A Post Processing Approach for CFD Error Associated with Grid Resolution, AIAA-2007-0101, 45th AIAA Aerospace Sciences Meeting, Reno 2007.

Chad Winkler, Andrew Dorgan, Mark Fisher, Mori Mani, and S. P. Vanka, BCFD Predictions for the 3rd AIAA Drag Prediction Workshop, The 3rd AIAA Drag Prediction Workshop (DPW3), San Francisco, June 3-4, 2006.

Winkler, C. M. and Vanka, S. P., Particle Deposition in Laminar Curved Duct Flow, American Physical Society 58th Annual Meeting of the Division of Fluid Dynamics, Chicago, November 2005.

Winkler, C. M., and Vanka, S. P., Particle Dispersion by Dean Vortices, American Physical Society 57th Annual Meeting of the Division of Fluid Dynamics, Seattle, November, 2004.

Winkler, C. M., and Rani, Sarma L., "Forces on Particles in a Turbulent Square Duct Flow", American Physical Society 56th Annual Meeting of the Division of Fluid Dynamics, New Jersey, November 23-25, 2003.

Vanka, S. P., Winkler, C. M., Coffman, J., Linderman, E., Mahjub, S., and Young, B., "Novel Low Reynolds Number Mixers for Microfluidic Applications", 4th ASME/JSME Joint Fluids Engineering Conference, FEDSM2003-45122, Honolulu, Hawaii, July 2003.

Winkler, Chad M., Rani, Sarma L., and Vanka, S. Pratap, "Large Eddy Simulations of Particle Deposition in a Turbulent Square Duct Flow", The Third International Symposium on Turbulence and Shear Flow Phenomena, June 24-27, Sendai, Japan 2003.

Winkler, C. M., Rani, S. L., and Vanka, S. P., "Large Eddy Simulations of Particle Dispersion by Turbulence Driven Secondary Flows in a Square Duct", The 6th ASME-JSME Thermal Engineering Joint Conference, March 16-20, Kohala Coast, Hawaii, 2003.

Winkler, C. M., Rani, S. L., and Vanka, S. P., "Preferential Concentration of Particles in a Fully Developed Turbulent Square Duct Flow", American Physical Society 55th Annual Meeting of the Division of Fluid Dynamics, Dallas, Nov. 24-26, 2002.

Rani, S. L., Winkler, C. M., and Vanka, S. P., "Large Eddy Simulations of Particle Deposition in a Fully Developed Turbulent Square Duct Flow", American Physical Society 55th Annual Meeting of the Division of Fluid Dynamics, Dallas, Nov. 24-26, 2002.

Winkler, C. M., and Vanka, S. P., "Turbulent Particle Dispersion in a Square Duct", American Physical Society 54th Annual Meeting of the Division of Fluid Dynamics, San Diego, Nov. 18-20, 2001.

Invited Lectures:

Winkler, C. M., "The Boeing Company: Creating the Future of Aerospace", University of Illinois at Chicago, Oct. 19, 2005

Patent Disclosures:

Winkler, C. M., Dorgan, A., and Werner, E., "A method and apparatus for variable exhaust nozzle exit area," Boeing Disclosure 10-0854. (Patent Pending)

Winkler, C. M., Dorgan, A., and Werner, E., "Method and Apparatus for Nozzle Thrust Vectoring," Boeing Disclosure 09-1121. (Patent Pending)

Winkler, C. M., Dorgan, A., and Bingaman, D., "A Method and Apparatus for Controlling Noise, Forces, and Moments on an Exhaust Nozzle," Disclosure 08-0841

Winkler, C. M. and Wright, M. J., "Variable Area Flow Duct Employing Secondary Flows, and Method Therefore", Disclosure 06-0660 (US Patent 8,015,794 B2, issued Sept. 13, 2011)

Winkler, C. M., Wright, M. J., and Mani, M. "Fluidic Mixer with Controllable Mixing Effectiveness Using Secondary Flows", Disclosure 07-0276 (patent pending)

Winkler, C. M., Sanford, W. C., and Winkler, E. R., "Electrically Deformable Mirror for Microgravity Applications." Boeing disclosure 05-0022, submitted on Jan. 7, 2005.

Vanka, S.P. and Winkler, C. M., "A Novel, High Efficiency Hemodialyzer for Treatment of End Stage Renal Disease (ESRD)", disclosed to University of Illinois Office of Technology Management, 2002.

INTERNAL TECHNICAL REPORTS

Winkler, Chad and Dorgan, Andrew, "DDES with Rotation Terms," Computational Fluid Dynamics Technical Memorandum CM-11-04, 2011.

Winkler, Chad and Dorgan, Andrew, "Non-linear Constitutive Relation Model in BCFD," Computational Fluid Dynamics Technical Memorandum CM-11-05, 2011.

Winkler, Chad "Prediction of Turbulence Driven Secondary Flows using BCFD", Computational Fluid Dynamics Technical Memorandum CM-05-03, 2005.

Winkler, Chad, and Cary, Andrew, "Viscous Flow Loading on an Oscillating Beam", Technical Memo CFD-05-01, 2005.

Winkler, Chad, "Additive drag problem when Ao/Ac approaches one", Computational Mechanics Memo CM-04-01, 2004.

Winkler, C. M., Vanka, S. P., and Hrnjak, P. S., "Large Eddy Simulations of Particle Dispersion and Deposition in a Turbulent Square Duct Flow," ACRC TR-203, Air Conditioning and Refrigeration Center - Univ. of Illinois, Oct. 2002.

Awards:

Cash Award, Proprietary program, 2009.

Boeing Special Invention Award, 2008.

American Institute of Aeronautics and Astronautics (AIAA) Young Professional Award - St. Louis Section, 2005.

Nominated for American Institute of Aeronautics and Astronautics (AIAA) Lawrence Sperry Award (national Young Professional award) -2007 and 2008

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