Journal Articles
2000 to present
G. J. Marshall and R. W. Pitz, “Evaluation of Heat Release Indicators in Lean Premixed H2/Air Cellular Tubular Flames,” Proceedings of the Combustion Institute, 37, 2029-2036, 2019.
D. C. Tinker, C. A. Hall, and R. W. Pitz, “Measurement and Simulation of Partially-Premixed Cellular Tubular Flames,” Proceedings of the Combustion Institute, 37, 2021-2028, 2019.
H. Devathi, C. A. Hall, R. W. Pitz, “Numerical Study of the Structure and NO Emission Characteristics of N2– and CO2-Diluted Tubular Diffusion Flames,” Energies, 12, 1490, 2019.
C. A. Hall, M. C. Ramsey, D. Knaus, and R. W. Pitz, “Molecular Tagging Velocimetry in Nitrogen with Trace Water Vapor,” Measurement Science and Technology, 28, 085201 (6 pages), 2017.
T. S. Cheng, J.-Y. Chen, and R. W. Pitz, “Raman/LIPF Data of Temperature and Species Concentrations: Conditional Analysis and Comparison to Laminar Flamelets,” 186, pp. 311-324, 2017.
A. Scholtissek, R. W. Pitz, and C. Hasse, “Flamelet Budget and Regime Analysis for Non-Premixed Tubular Flames,” Proceedings of the Combustion Institute, 36, pp. 1349-1356, 2017.
C. A. Hall and R. W. Pitz, “Experimental and Numerical Study of H2-Air Non-Premixed Cellular Tubular Flames,” Proceedings of the Combustion Institute, 36, pp. 1595-1602, 2017.
N. R. Grady, R. W. Pitz, C. D. Carter and K.-Y. Hsu, “Raman Scattering Measurements of Mixing and Finite-Rate Chemistry in Supersonic Reacting Flow over a Piloted, Ramped Cavity,” Journal of Propulsion and Power, 165, pp. 310-320, 2016.
C. A. Hall and R. W. Pitz, “Modeling of Cellular Tubular Flames, Combustion Theory and Modelling, 20, pp. 328–348, 2016.
I. Langella, N. Swaminathan, R. W. Pitz, “Application of Unstrained Flamelet SGS Closure for Multi-Regime Premixed Combustion,” Combustion and Flame, 173, pp. 161-178, 2016.
C. A. Hall, W. D. Kulatilaka, N. Jiang, J. R. Gord, and R. W. Pitz, “Minor Species Structure of Premixed Cellular Tubular Flames, Proceedings of the Combustion Institute, 35, pp. 1107-1114, 2015.
R. W. Pitz, S. T. Hu, and P. Y. Wang, “Tubular Premixed and Diffusion Flames: Effect of Stretch and Curvature,” Progress in Energy and Combustion Science, 42, pp.1-34, 2014.
C. A. Hall, W. D. Kulatilaka, S. Roy, J. R. Gord, and R. W. Pitz, “Quantitative Atomic Hydrogen Measurements in Premixed Hydrogen Tubular Flames, Combustion and Flame, 161, pp. 2924-2932, 2014.
N. Grady and R. W. Pitz, “Vibrationally Excited Hydroxyl Tagging Velocimetry,” Applied Optics, 53, pp. 7182-7188, 2014.
C. A. Hall and R. W. Pitz, “A Structural Study of Premixed Hydrogen-Air Cellular Tubular Flames,” Proceedings of the Combustion Institute, 34, pp. 973-980, 2013.
M. C. Ramsey and R. W. Pitz, “Energetic Cavitation Collapse Drives Megabar Plasma,” Physical Review Letters, 110, 154301 (5 pages), 2013.
N. R. Grady, R. W. Pitz, C. D. Carter, K.-Y. Hsu, C. Ghodke, and S. Menon, “Supersonic Flow over a Ramped-Wall Cavity Flameholder with an Upstream Strut,” Journal of Propulsion and Power, 28, 982-990, 2012.
M. C. Ramsey, R. W. Pitz, T P. Jenkins, Y. Matsutomi, C. Yoon and W. E. Anderson, “Planar 2D Velocity Measurements in the Cap Shock Pattern of a Thrust Optimized Rocket Nozzle,” Shock Waves, 22, pp. 39-46, 2012.
A. M. ElBaz and R. W. Pitz, “N2O Molecular Tagging Velocimetry in Experimental Air Flows,” Applied Physics B, 106, pp. 961-969, 2012.
T. S. Cheng, S. R. March, R. W. Pitz, J. A. Wehrmeyer, and J.-Y. Chen, “Laser Raman Measurements of Temperature and Species Concentration in Swirling Lifted Hydrogen Jet Diffusion Flames,” International Journal of Hydrogen Energy, DOI 10.1016/j.ijhydene.2012.02.018, 2012.
M. C. Ramsey, R. W. Pitz, “Template matching for improved accuracy in molecular tagging velocimetry,” Experiments in Fluids, 51, pp. 811-819, 2011. http://dx.doi.org/10.1007/s00348-011-1098-y
S. W. Shopoff, P. Wang, and R. W. Pitz, “Experimental Study of Cellular Instability and Extinction of Non-Premixed Opposed-Flow Tubular Flames,” Combustion and Flame, 158, pp. 2165-2177, 2011.
S. W. Shopoff, P. Wang, and R. W. Pitz, “The Effect of Stretch on Cellular Formation in Non-Premixed Opposed-Flow Tubular Flames,” Combustion and Flame, 158, pp. 876Ð884, 2011.
M. D. Lahr, R. W. Pitz, Z. W. Douglas, and C. D. Carter, “Hydroxyl-Tagging-Velocimetry Measurements in a Supersonic Flow over a Cavity,” Journal of Propulsion and Power, 26, No. 4, pp. 790-798, 2010.
B. K. Choi, W. P. Kang, I. L. Davis, J. L. Davidson, S. T. Hu and R. W. Pitz, “Thermionic electron emission from chemical vapor deposition diamond by nanosecond laser heating,” Journal of Vacuum Science and Technology B, 27, pp. 557-561, 2009.
Y. Wang, S. Hu, and R. W. Pitz, “Extinction and Cellular Instability of Premixed Tubular Flames,” Proceedings of the Combustion Institute, 32, pp. 1141-1147, 2009.
S. Hu, P. Wang, and R. W. Pitz, “A Structural Study of Premixed Tubular Flames,” Proceedings of the Combustion Institute, 32, pp.1133-1140, 2009.
S. Hu, R. W. Pitz, and Y. Wang “Extinction and Near-Extinction Instability of Non-Premixed Tubular Flames,” Combustion and Flame, 156, pp. 90-98, 2009.
S. Hu and R. W. Pitz “Structural Study of Non-Premixed Tubular Hydrocarbon Flames,” Combustion and Flame, 156, pp. 51-61, 2009.
B. A. V. Bennett, Z. Cheng, R. W. Pitz, and M. D. Smooke, “Computational and Experimental Study of Oxygen-Enhanced Axisymmetric Laminar Methane Flames,” Combustion Theory and Modelling, 12, pp. 497-527, 2008.
T.S. Cheng, J.A. Wehrmeyer, R.W. Pitz, Conditional analysis of lifted hydrogen jet diffusion flame experimental data and comparison to laminar flame solutions, Combustion and Flame, 150, 340-354, 2007.
Hu, S., Wang, P. and Pitz, R. W., Experimental and Numerical Investigation of Non-Premixed Tubular Flames, Proceedings of the Combustion Institute, 31, 1093-1099, 2007.
Wang, P., Hu, S. and Pitz, R. W., Numerical Investigation of the Curvature Effects on Diffusion Flames, Proceedings of the Combustion Institute, 31, 989-996, 2007.
Katta, V. R., Hu, S., Wang, P., Pitz, R. W. and Roquemore, W. M., Investigations on Double-State Behavior of Counterflow Premixed Flame System, Proceedings of the Combustion Institute, 31, 1055-1066, 2007.
P. Wang, J. A. Wehrmeyer and R. W. Pitz, “Stretch rate of tubular premixed flames”, Combustion and Flame, 145, 401-414, 2006.
Z. Cheng, R. W. Pitz, and J. A. Wehrmeyer, “Lean and Ultralean Stretched Propane-air Counterflow Flames,” Combustion and Flame, 145, 647-662, 2006.
Z. Cheng, J. A. Wehrmeyer, and R. W. Pitz, “Experimental and Numerical Studies of Opposed Jet Oxygen-Enhanced Methane Diffusion Flames”, Combustion Science and Technology, 178, 2145-2163, 2006.
Zhongxian Cheng, Joseph A. Wehrmeyer, Robert W. Pitz, Lean or ultra-lean stretched planar methane/air flames, Proceedings of the Combustion Institute, 30, 285-293, 2005.
R. W. Pitz, M. D. Lahr, Z. W. Douglas, J. A. Wehrmeyer, S. Hu, C. D. Carter, K.-Y. Hsu, C. Lum, and M. M. Koochesfahani, “Hydroxyl Tagging Velocimetry in a Supersonic Flow over a Cavity”, Applied Optics, 44(31), 6692-6700, 2005.
L. A. Ribarov, S. Hu, J. A. Wehrmeyer, and R. W. Pitz, “Hydroxyl Tagging Velocimetry Method Optimization: Signal Intensity and Spectroscopy”, Applied Optics, 44(31), 6616-6626, 2005.
Z. Cheng, J. A. Wehrmeyer, R. W. Pitz,”Lean or Ultra Lean Stretched Planar Methane/Air Flames”, the 30th Proceedings of the Combustion Institute, 285-293, The Combustion Institute, Chicago, 2005.
Ribarov, L. A., Wehrmeyer, J. A., Hu, S. and Pitz, R. W., Multiline Hydroxyl Tagging Velocimetry Measurements in Reacting and Nonreacting Experimental Flows, Experiments in Fluids, 37, no. 1, 65-74, 2004.
D. M. Mosbacher, J. A. Wehrmeyer, R. W. Pitz, C. J. Sung, and J. L. Byrd, “Experimental and Numerical Investigation of Premixed Cylindrical Flames”, the 29th Proceedings of the Combustion Institute, 1479-1486, The Combustion Institute, 2002.
H. S. Xue, S. K. Aggarwal, R. J. Osborne, T. M. Brown, and R. W. Pitz, “On the Comparison of Predicted and Measured Counterflow Partially Premixed Flame Structures: Assessment of Reaction Mechanisms,” Technical Note, AIAA J.,40,1236-1238, 2002.
T. C. Cole, W. A. Cole, T. M. Brown, and R. W. Pitz, “Measurement of Smoke Concentration using Degenerate Four-Wave Mixing,” Measurement, Science and Technology, 13, 464-470, 2002.
J. A. Wehrmeyer, Z. Cheng, D. M. Mosbacher, R. W. Pitz, R. J. Osborne, “Opposed Jet Flames of Near-Limit Premixed Propane-Air Reactants vs. Hot Products, Combustion and Flame, 128, 232-241, 2002.
L. A. Ribarov, J. A. Wehrmeyer, R. W. Pitz, and R. A. Yetter, “Hydroxyl Tagging Velocimetry (HTV) in Experimental Air Flows,” Applied Physics B, 74, 175-183, 2002.
R. W. Pitz, J. A. Wehrmeyer, L. A. Ribarov, D. A. Oguss, F. Batliwala, P. A. DeBarber, S. Deusch, and P. E. Dimotakis, “Unseeded Molecular Flow Tagging in Cold and Hot Flows Using Ozone and Hydroxyl Tagging Velocimetry, Measurement, Science and Technology, 11, 1259-1271, 2000.
Journal Articles, prior to 2000
J. A. Wehrmeyer, L. A. Ribarov, D. A. Oguss, and R. W. Pitz, “High Temperature Flow Tagging Velocimetry with 193 nm H2O Photodissociation,” Applied Optics, 38, pp. 6912-6917, 1999.
L. A. Ribarov, J. A. Wehrmeyer, F. Batliwala, R. W. Pitz, and P. A. DeBarber, “Ozone Tagging Velocimetry using Narrowband Excimer Lasers,” AIAA Journal, 37, pp. 708-714, 1999.
T. M. Brown, R. W. Pitz, and C. J. Sung, “Oscillating Stretch Effects on the Structure and Extinction of Counterflow Diffusion Flames” Twenty-Seventh Symposium (Int.) on Combustion, Combustion Institute, Pittsburgh, 1998.
T.M. Brown, M.A. Tanoff, R.J. Osborne, R.W. Pitz, and M.D. Smooke, “Experimental and Numerical Investigation of Laminar Hydrogen-Air Counterflow Diffusion Flames”, Combustion Science and Technology, 129, p. 71, 1997
M. A. Tanoff, M. D. Smooke, R. J. Osborne, T. M. Brown, and R. W. Pitz, “The Sensitive Structure of Partially Premixed Methane-Air vs. Air Counterflow Flames,” Twenty-Sixth Symposium (Int.) on Combustion, The Combustion Institute, Naples, Italy, 1996
R. W. Pitz, T. M. Brown, S. P. Nandula, P. A. Skaggs, P. A. DeBarber, and M. S. Brown, “Unseeded Velocity Measurement by Ozone Tagging Velocimetry,” Optics Letters, 21, pp. 755-757, 1996
(Awarded Best Paper in Engineering Award, Vanderbilt University, 1997)
D. Trees, T. M. Brown, M. D. Smooke, K. Seshadri, G. Balakrishnan, R. W. Pitz, V. Giovangigli, and S. P. Nandula, “The Structure of Nonpremixed H2/Air Flames,” Combustion, Science and Technology, 104, pp. 427-439, 1995?
T. S. Cheng and R. W. Pitz, “Simultaneous Measurements of Conserved and Reactive Scalars in Turbulent Diffusion Flames for Assessment of PDF Models,” Twenty-Fifth Symposium (Int.) on Combustion, pp. 1133-1139, The Combustion Institute, Pittsburgh, 1994
S. P. Nandula, T. M. Brown, and R. W. Pitz, “Measurements of Scalar Dissipation in the Reaction Zones of Turbulent Nonpremixed H2-Air Flames,” Combustion and Flame, 99, pp. 775-783, 1994
T. M. Brown, R. W. Pitz, C. F. Hess, and C. P. Wood, “Pulsed Photothermal Laser Deflection for Low-Level Smoke Measurements in Engine Exhausts,” Applied Physics B, 59, pp. 351-356, 1994.
T. S. Cheng, J. A. Wehrmeyer, R. W. Pitz, O. Jarrett, Jr., and G. B. Northam, “Raman Measurement of Mixing and Finite-Rate Chemistry in a Supersonic Hydrogen-Air Diffusion Flame,” Combustion and Flame, 99, pp. 157-173, 1994
S. P. Nandula, T. M. Brown, R. W. Pitz, and P. A. DeBarber, “Single-Pulse, Simultaneous Multipoint Multispecies Raman Measurements in Turbulent Nonpremixed Jet Flames,” Optics Letters, 19, pp. 414-416, 1994
R. W. Pitz, T. S. Cheng, J. A. Wehrmeyer, and C. F. Hess, “Two-Photon Predissociative Fluorescence of H2O by a KrF Laser for Concentration and Temperature Measurement,” Applied Physics B, 56, pp. 94-100, 1993
T. S. Cheng, J. A. Wehrmeyer, and R. W. Pitz, “Simultaneous Temperature and Multi-Species Measurement in a Lifted Hydrogen Diffusion Flame,” Combustion and Flame, 91, pp. 323-345, 1992
R. Villase–or, J.-Y. Chen and R. W. Pitz, “Interaction between Chemical Reaction and Turbulence in Supersonic Nonpremixed H2-Air Combustion,” AIAA Journal, 30, pp. 2552-2554, 1992
J. A. Wehrmeyer, T. S. Cheng, and R. W. Pitz, “Temperature Measurement in Turbulent Flames by KrF Excimer-Induced Raman Scattering,” Temperature, Its Measurement and Control in Science and Industry, vol. 6, J. F. Schooley, ed., American Institute of Physics, New York, pp. 695-700, 1992
J. A. Wehrmeyer, T. S. Cheng, and R. W. Pitz, “Raman Scattering Measurements in Flames Using a Tunable KrF Laser,” Applied Optics, 31, pp. 1495-1504, 1992
R. Villase–or, J.-Y. Chen, and R. W. Pitz, “Modeling Ideally Expanded Supersonic Turbulent Jet Flows with Nonpremixed H2-Air Combustion,” AIAA Journal, 30, pp. 395-402, 1992
R. W. Pitz, “Low Level Smoke Emission Measurements from a Flame by Photothermal Deflection Spectroscopy,” Applied Optics, 29, pp. 2418-2423, 1990.
R. W. Pitz, J. A. Wehrmeyer, J. M. Bowling, and T. S. Cheng, “Single-Pulse Vibrational Raman Scattering by a Broadband KrF Excimer Laser in a Hydrogen-Air Flame,” Applied Optics, 29, pp. 2325-2332, 1990
M. Lapp, M. C. Drake, C. M. Penney, R. W. Pitz, “Flame Images from Pointwise Raman Data,” J. Quantitative Spectroscopy & Radiative Transfer, 40, pp. 363-368, 1988.
J. O. Keller, J. L. Ellzey, R. W. Pitz, I. G. Shepherd, and J. W. Daily, “The Structure and Dynamics of Reacting Plane Mixing Layers,” Experiments in Fluids, 6, pp. 33-43, 1988.
R. W. Pitz, C. M. Penney, and M. Lapp, “Acoustically Modulated Optical Transmission For Low Level Gaseous Species Measurement,” Applied Optics, 26, pp. 5272-5275, 1987.
M. C. Drake, S. M. Correa, R. W. Pitz, W. Shyy and C. P. Fenimore, “Superequilibrium and Thermal Nitric Oxide Formation in Turbulent Diffusion Flames,” Combustion and Flame, 69, pp. 347-365, 1987.
M. C. Drake, R. W. Pitz and W. Shyy, “Conserved Scalar Probability Density Functions in a Turbulent Jet Diffusion Flame,” Journal of Fluid Mechanics, 171, pp. 27-51, 1986.
M. C. Drake, R. W. Pitz and M. Lapp, “Laser Measurements on Nonpremixed H2-Air Flames for Assessment of Turbulent Combustion Models,” AIAA Journal, 24, pp. 905-917, 1986.
R. W. Pitz and M. C. Drake, “Intermittency and Conditional Averaging in a Turbulent Nonpremixed Flame by Raman Scattering,” AIAA J., 24, pp. 815-822, 1986.
M. C. Drake and R. W. Pitz, “Comparison of Turbulent Diffusion Flame Measurements of OH by Planar Fluorescence and Saturated Fluorescence,” Experiments in Fluids, 3, pp. 283-292, 1985.
R. P. Lucht, D. W. Sweeney, N. M. Laurendeau, M. C. Drake, M. Lapp and R. W. Pitz, “Single Pulse, Laser-Saturated Fluorescence Measurements of OH in Turbulent Nonpremixed Flames,” Optics Letters, 9, pp. 90-92, 1984.
M. C. Drake, R. W. Pitz, M. Lapp, C. P. Fenimore, R. P. Lucht, D. W. Sweeney and N. M. Laurendeau, “Measurements of Superequilibrium Hydroxyl Concentrations in Turbulent Nonpremixed Flames Using Saturated Fluorescence,” Proceedings of the Combustion Institute, 20, pp. 327-335, 1984.
M. C. Drake, R. W. Pitz, S. M. Correa and M. Lapp, “Nitric Oxide Formation from Thermal and Fuel-Bound Nitrogen Sources in a Turbulent Nonpremixed Syngas Flame,” Proceedings of the Combustion Institute, 20, pp. 1983-1990, 1984.
S. M. Correa, M. C. Drake, R. W. Pitz and W. Shyy, “Prediction and Measurement of a Non-Equilibrium Turbulent Diffusion Flame,” Proceedings of the Combustion Institute, 20, pp. 337-343, 1984.
G. Kychakoff, R. D. Howe, R. K. Hanson, M. C. Drake, R. W. Pitz, M. Lapp and C. M. Penney, “Visualization of Turbulent Flame Fronts with Planar Laser-Induced Fluorescence,” Cover Article, Science, 224, pp.382-384, 1984.
R. W. Pitz and J. W. Daily, “Combustion in a Turbulent Mixing Layer Formed at a Rearward-Facing Step,” AIAA Journal, 21, pp. 1565-1570, 1983.
R. W. Pitz, R. Cattolica, F. Robben, and L. Talbot, “Temperature and Density in a Hydrogen-Air Flame From Rayleigh Scattering,” Combustion and Flame, 27, pp. 313-320, 1976