Noel T. Clemens
Journal Publications
1. Ganapathisubramani, B.,
Lakshminarasimhan, K. and Clemens, N. T., "Experimental
Investigation of Fine Scales in the Far Field of a Turbulent Jet" to
be published in the Journal of Fluid Mechanics, 2008.
2. Wang, G.-H., Clemens, N.T., Varghese, P.L. and
Barlow, R.S., "Turbulent Time Scales in a Nonpremixed Turbulent Jet
Flame by Using High-Repetition Rate Thermometry," Combustion and
Flame, Vol. 152, pp. 317-335, 2008.
3. Ganapathisubramani, B.,
Clemens, N. T. and Dolling, D.S., "Effects of Upstream Boundary
Layer on the Unsteadiness of Shock Induced Separation," Journal
of Fluid Mechanics, Vol. 585, pp. 369-394, 2007.
4. Shin, J., Narayanaswamy, V.,
Raja, L.L., Clemens, N.T., "Characterization of a Direct-Current
Glow Discharge Plasma Actuator in Low-Pressure Supersonic Flow," AIAA
Journal, Vol. 45, No. 7, pp. 1596-1605, 2007.
5. Ganapathisubramani, B.,
Lakshminarasimhan, K. and Clemens, N. T., "Determination of
Complete Velocity Gradient Tensor by using Cinematographic Stereoscopic PIV
in a Turbulent Jet," Experiments in Fluids, Vol. 42, No. 6,
pp. 923-939, 2007.
6. Lakshminarasimhan, K.,
Clemens, N.T. and Ezekoye, O. A., "Mixing
Characteristics in Strongly-Forced Nonpremixed Methane Jet Flames,"
Proceedings of the Combustion Institute, Vol. 31, to be published,
2007.
7. Wang, G.H., Barlow, R.S. and
Clemens, N.T., "Quantification of Resolution and Noise Effects on
Thermal Dissipation Measurements in Turbulent Non-premixed Jet Flames,"
Proceedings of the Combustion Institute, Vol. 31, to be published,
2007.
8. Wang, G.-H., Clemens, N.T.,
Barlow, R.S. and Varghese, P.V., "A System Model for Assessing
Scalar Dissipation Measurement Accuracy in Turbulent Flows," Measurement
Science and Technology, Vol. 18, pp. 1287-1303, 2007.
9. Miller, D.A., Gamba, M.,
Sauer, D., Purvis, T.P., Clemens, N.T. and Williams, R.O., "Evaluation
of the USP Dissolution Test Method A for Enteric-Coated Articles by Planar
Laser Induced Fluorescence," International Journal of
Pharmaceutics, Vol. 330, pp. 61-72, 2007.
10. Lakshminarasimhan, K.,
Clemens, N.T. and Ezekoye, O. A., "Characteristics of
Strongly-Forced Turbulent Nonpremixed Jet Flames," Experiments
in Fluids, Vol. 41, pp. 523-542, 2006.
11. Ganapathisubramani, B. and
Clemens, N. T., "A Note on the Effect of Laser Pulse Duration on
Particle Image Velocimetry," AIAA Journal, Vol. 44, No. 6, pp.
1368-1370, June 2006.
12. Barve, V.V., Ezekoye, O.A.,
Clemens, N.T. and Katta, V.R., "Numerical Study of the Evolution of
Strongly Forced Axisymmetric Laminar Cold-Flow Jets," AIAA
Journal, Vol. 44, No.8, pp. 1742-1752, August 2006.
13. Ganapathisubramani, B.,
Clemens, N. T. and Dolling, D.S., "Large-Scale Motions in a
Supersonic Turbulent Boundary Layer," Journal of Fluid
Mechanics, Vol. 556, pp. 271-282, 2006.
14. Kothnur, P.S. and Clemens,
N.T., "Effects of Unsteady Strain Rate on Scalar Dissipation
Structures in Turbulent Planar Jets," Physics of Fluids, Vol.
17, Issue 12, article 125104, 2006.
15. Wang, G, Clemens, N.T.
and Varghese, P.L., "Two-Point, High-Repetition Rate Rayleigh
Thermometry in Flames: Techniques to Correct for Apparent Dissipation
Induced by Noise," Applied Optics, Vol. 44, Issue 31, pp.
6741-6751, 2005.
16. Hou, Y.X., Ünalmis, O.H.,
Bueno, P.C., Clemens, N. T. and Dolling, D. S., "Role
of Upstream Boundary Layer Velocity Fluctuations on Unsteadiness of Mach 5
Blunt-Fin Interactions," AIAA Journal, Vol. 42, No.
12, pp. 2615-2619, 2004.
17. Wang, G., Clemens, N.T. and
Varghese, P.L., "High-Repetition Rate Measurements of Temperature
and Thermal Dissipation in a Nonpremixed Turbulent Jet Flame," Proceedings
of the Combustion Institute, Vol. 30, pp. 691-699, 2005.
18. Unalmis, O. H., Clemens, N.
T. and Dolling, D. S., "Cavity Oscillation Mechanisms in High-Speed
Flows," AIAA Journal, Vol. 40, No. 10, pp.
2035-2041, 2004.
19. Idicheria, C.A., Boxx, I.G.
and Clemens, N.T., "Characteristics of Turbulent Nonpremixed Jet
Flames under Normal- and Low-Gravity Conditions," Combustion
and Flame, Vol. 138, pp. 384-400, 2004.
20. Wang, G.H. and Clemens,
N.T., "Effects of Imaging System Blur on Measurements of Flow
Scalars and Scalar-Gradients," Experiments in Fluids, Vol. 37, pp.
194-205, 2004.
21. Su, L.K. and Clemens, N.T., "The
Structure of Fine-Scale Scalar Mixing in Gas-Phase Planar Turbulent
Jets," Journal of Fluid Mechanics, Vol. 488, pp. 1-29,
2003.
22. Beresh, S.J., Clemens, N.T.
and Dolling, D.S., "The Relationship between Upstream Turbulent
Boundary Layer Velocity Fluctuations and Separation Shock
Unsteadiness," AIAA Journal, Vol. 40, No. 12, pp.
2412-2422, 2002.
23. Kothnur, P.S., Tsurikov,
M.S., Clemens, N.T., Donbar, J.M. and Carter, C.D., "Planar Imaging
of CH, OH and Velocity in Turbulent Non-Premixed Jet Flames," Proceedings
of the Combustion Institute, Vol. 29, pp. 1921-1927, 2002.
24. Kim, J. U., Clemens, N.T.
and Varghese, P.L., "Experimental Study of the Transient
Underexpanded Jet Generated by an Electrothermal Capillary Plasma," AIAA Journal of
Propulsion and Power, Vol. 18, No. 6, pp. 1153-1160, 2002.
25. Kim, J.U., Clemens, N.T. and
Varghese, P.L., "Characterization of a High-Density Plasma Produced
by Electrothermal Capillary Discharge," Applied Physics
Letters, Vol. 80, pp. 368-370, 2002 and Vol. 80, p. 2806, 2002
(Erratum-Gives correct author list).
26. Clemens, N. T., "Flow Imaging," In Encyclopedia of Imaging
Science and Technology, John Wiley and Sons, New York, 2002. (Get
the pdf file here 
)
27. Ünalmis, O.H., Clemens, N.T.
and Dolling, D.S., "Experimental Study of Shear-Layer/Acoustics
Coupling in Mach 5 Cavity Flow" AIAA Journal, Vol.
39, No. 2, pp.242-252, 2001.
28. Kim, J.U., Kim, K., Wilson,
D.E., Peterson, D.R. and Clemens, N.T., "Neutralization of
Explosives by Plasma Jet Impingement: Feasibility Study," IEEE
Transactions on Plasma Science, Vol. 28, No.1, pp. 312, 2000.
29. Su, L.K. and Clemens,
N.T., "Planar Measurements of the Full Three-Dimensional
Scalar Dissipation Rate in Gas-Phase Turbulent Flows" Experiments
in Fluids, Vol. 27, pp. 507-521, 1999.
30. Rehm, J.E. and Clemens,
N.T., "An Improved Method for Enhancing Resolution of
Conventional Double-Exposure Single-Frame Particle Image Velocimetry,"
Experiments in Fluids, Vol. 26, pp. 497-504, 1999.
31. Rehm, J.E. and Clemens,
N.T., "The Large-Scale Turbulent Structure of Planar Jet Diffusion
Flames" Combustion & Flame, Vol. 116, pp. 615-626,
1999.
32. Kohel, J., Su, L.K.,
Clemens, N.T. and Varghese, P.L., "Emission Spectroscopic
Measurements and Analysis of a Pulsed Plasma Jet" IEEE
Transactions on Magnetics, Vol. 35, p. 201, 1999.
33. Clemens, N.T. and
Smith, M.F., "Observations of Supersonic Flat Plate Wake
Transition" AIAA Journal, Vol. 36, pp. 1328-1330, 1998.
34. Lachney, E.R. and Clemens,
N.T., "PLIF Imaging of Mean Temperature and Pressure in a
Supersonic Bluff Wake," Experiments in Fluids, Vol.
24, No. 4, pp. 354 - 363, 1998.
35. Rehm, J.E. and Clemens,
N.T., "The Relationship Between Vorticity/Strain and Reaction Zone
Structure in Turbulent Non-Premixed Jet Flames" Twenty Seventh
Symposium on Combustion, pp. 1113-1120, 1998.
36. Clemens, N.T., Paul, P.H.
and Mungal, M.G., "The Structure of OH Fields in High Reynolds
Number Turbulent Jet Diffusion Flames" Combustion Science and
Technology, Vol 129, pp. 165-184, 1997.
37. Rehm, J.E. and
Clemens, N.T., "Hydrogen/Helium Planar Turbulent Diffusion
Flames," Physics of Fluids, Vol. 9, No. 9, p. S3, September
1997.
38. Clemens, N.T., Petullo, S.P. and Dolling,
D.S., "Large-Scale Structure Evolution in Supersonic Interacting
Shear Layers" AIAA Journal, Vol. 34, pp. 2062-2070, 1996.
39. Clemens, N.T. and Paul,
P.H., "The Effects of Heat Release on the Near Field Flow
Structure of Hydrogen Jet Diffusion Flames" Combustion & Flame,
Vol. 102, No. 3, pp. 271-284, 1995.
40. Clemens, N.T. and M.
G. Mungal, "Large-Scale Structure and Entrainment in the Supersonic
Shear Layer" Journal of Fluid Mechanics, Vol. 284, pp.
171-216, 1995.
41. Clemens, N.T. and P. H.
Paul, "Scalar Measurements in Supersonic Axisymmetric Mixing
Layers" Physics of Fluids, vol. 7, No. 5, pp. 1071-1081,
1995.
42. Paul, P.H. and Clemens,
N.T., "Sub-Resolution Flowfield Mixing Measurements Using
Electronic Quenching of NO A2S+" Optics Letters, vol. 18, pp. 161-163, 1993.
43. Clemens, N.T. and
Paul, P.H., "Mach Waves Radiating from a Supersonic Jet," Physics
of Fluids A., Vol. 5, pg. S7, 1993.
44. Clemens, N.T. and Mungal,
M.G., "Two- and Three-Dimensional Effects in the Supersonic Mixing
Layer" AIAA Journal, vol. 30, No. 4, pp. 973-981, 1992.
45. Clemens, N.T. and Mungal,
M.G., "A Planar Mie Scattering Technique for Visualizing Supersonic
Mixing Flows" Experiments in Fluids, vol. 22, pp. 175-185,
1991.
46. Clemens, N.T. and Mungal,
M.G., "Effects of Side-Wall Disturbances on the Supersonic Mixing
Layer," Journal of Propulsion and Power, vol. 8, No. 1, pp.
249-251, 1991.
Recent Conference Papers
1. Shin, J., Narayanaswamy, V.,
Raja, L.L. and Clemens, N.T., "Characteristics of a Plasma Actuator in
Mach 3 Flow,"
paper AIAA-2007-788, 45th AIAA Aerospace Sciences Meeting and Exhibit,
Reno, Nevada, Jan. 8-11, 2007.
2. Gamba, M., Clemens, N.T. and
Ezekoye, D.K., "Strongly Forced Turbulent Non-Premixed Jet Flames
in Cross-Flow," paper AIAA-2007-1418, 45th AIAA Aerospace Sciences
Meeting and Exhibit, Reno, Nevada, Jan. 8-11, 2007.
3. Murphree, Z., Yuceil, B.,
Clemens, N.T. and Dolling, D.S., "Experimental Studies of
Transitional Boundary Layer Shock Wave Interactions ," paper AIAA-2007-14139,
45th AIAA Aerospace Sciences Meeting and Exhibit, Reno, Nevada, Jan. 8-11,
2007.
4. Murphree, Z.R.,
Jagodzinski, J., Hood, Jr., E.S., Clemens, N.T. and Dolling, D.S. "Experimental
Studies of Transitional Boundary Layer Shock Wave Interactions," AIAA-2006-326-768,
44th AIAA Aerospace Sciences Meeting and Exhibit. Reno, Nevada, January
2006.
5. Ganapathisubramani, B.,
Clemens, N.T. and Dolling, D.S., "Planar Imaging Measurements to
Study the Effect of Spanwise Structure of Upstream Turbulent Boundary Layer
on Shock Induced Separation," AIAA-2006-324, 44th AIAA Aerospace
Sciences Meeting and Exhibit. Reno, Nevada January 2006.
6. Ganapathisubramani, B.,
Lakshminarasimhan, K. and Clemens, N. T., "Cinematographic
Stereoscopic PIV of a Turbulent Jet: Assessment of Accuracy of 3D Derived
Quantities," paper AIAA-2006-2806, 25th AIAA Aerodynamic
Measurement Technology and Ground Testing Conference, San Francisco,
California, June 5-8, 2006.
7. Ryan, M., Clemens, N. and
Varghese, P., "Spectroscopic Measurements during an Electrothermal
Plasma-JA2 Solid Propellant Interaction," AIAA-2006-1464, 44th
AIAA Aerospace Sciences Meeting and Exhibit, Reno, Nevada, Jan. 9-12, 2006.
8. Shin, J., Narayanaswamy, V.,
Raja, L.L. and Clemens, N. "Generation of Plasma Induced Flow
Actuation by DC Glow-like Discharge in a Supersonic Flow," AIAA-2006-169-953,
44th AIAA Aerospace Sciences Meeting and Exhibit. Reno, Nevada January
2006.
9. Gamba, M., Clemens, N.,
Ezekoye, O. and Boxx, I., "Experimental Study of Acoustically-Forced
Jet Flames under Low- and Normal-Gravity Conditions," paper
AIAA-2006-1135, 44th AIAA Aerospace Sciences Meeting and Exhibit, Reno,
Nevada, Jan. 9-12, 2006.
10. Barve, V., Clemens, N.,
Ezekoye, O. and Katta, V., "Soot Production Rates in Strongly Forced
Methane-Air Laminar Diffusion Flames," AIAA-2006-3286 9th
AIAA/ASME Joint Thermophysics and Heat Transfer Conference, San Francisco,
California, June 5-8, 2006.
11. P. Bueno,
Ganapathisubramani, B., Clemens, N.T and Dolling, D.S., "Cinematographic
Planar Imaging of a Mach 2 Shock Wave / Turbulent Boundary Layer
Interaction," AIAA paper 2005-0441, 43rd Aerospace Sciences
Meeting, January 2005.
12. K. Lakshminarasimhan,
Clemens, N.T and Ezekoye, O.A., "Flow and Flame Characteristics of
Strongly Pulsed Methane Jet Diffusion Flames," 4th Joint Meeting
of the U.S. Sections of the Combustion Institute, Philadelphia, PA, 2005.
13. G.H. Wang, Clemens, N.T. and
Varghese, P.L., "High-Repetition Rate, Two-Point Temperature
Measurements in Nonpremixed Turbulent Jet Flames," Proceedings of
the Spring 2004 Technical Meeting of the Central States Section of the
Combustion Institute.
14. P. Bueno, Hou, Y.X.,
Clemens, N.T and Dolling, D.S., "Wide-Field PIV Study
of the Effect of Pulsed Jet Injection Upstream of a Mach 2 Shock
Wave/Turbulent Boundary Layer Interaction," AIAA paper 2004-0707, 42nd
Aerospace Sciences Meeting, January 2004.
15. C.A. Idicheria, Boxx,
I.G. and Clemens, N. T., "The Turbulent Structure and Entrainment
of Nonpremixed Jet Flames in Normal- and Low-Gravity Conditions,"
Proceedings of the Spring 2004 Technical Meeting of the Central States
Section of the Combustion Institute.
16. Boxx, I.G. and Clemens,
N.T., "Kilohertz PIV/PLMS of low-gravity turbulent flames in a
drop tower,"
12th International
Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon,
Portugal, July 2004.
17. Ryan, M., Clemens, N.T and
Varghese, P.L., "Measurements of Electrothermal-Plasma Ignition of
Solid Propellants," AIAA paper 2004-0388, 42nd Aerospace Sciences
Meeting, January 2004
18. F. Bisetti, Clemens, N.T.
and Ezekoye, O.A., "Flame Length and Exit Plane Mixing in
Resonantly Excited Jet Diffusion Flames," paper TED-AJ03-408, The
6th ASME-JSME Thermal Engineering Joint Conference, March 2003.
19. Bueno, P., Hou, Y.X.,
Clemens, N.T and Dolling, D.S., "A
PIV Study on the Effect of Pulsed-Jet Injection Upstream of a Mach 2
Shock Wave/Turbulent Boundary Layer Interaction," Presented at the
20th International
Congress on Instrumentation in Aerospace Simulation Facilities, Göttingen,
Germany, August 2003.
20. C.A. Idicheria, Boxx, I.G.
and Clemens, N. T., "Characteristics of Turbulent Nonpremixed Jet
Flames in Different Gravity Levels," Proceedings of the Third
Joint Meeting of the U.S. Sections of The Combustion Institute, March 2003.
21. Y.X. Hou, Clemens, N.T. and
Dolling, D.S., "Wide-Field PIV Study of Shock-Induced Turbulent
Boundary Layer Separation," AIAA paper 2003-0441, 41st Aerospace
Sciences Meeting, January 2003.
22. I.G. Boxx, C. A. Idicheria
and N. T. Clemens, "A Quantitative Exploration of the Large-scale
Flow Structure of Turbulent Nonpremixed Flames under Standard- and
Micro-Gravity Conditions," AIAA 2003-1151, 41st Aerospace Sciences
Meeting and Exhibit, January 2003.
23. Y.X. Hou, Clemens, N.T. and
Dolling, D.S., "Development of a Multi-Camera PIV Imaging System
for Studies of Shock/Boundary Layer Interactions," AIAA paper
2002-3232, 22nd AIAA Aerodynamic Measurement Technology and Ground Testing
Conference, June 2002.
24. M. S. Tsurikov & Clemens,
N. T., "The Structure of Dissipative Scales in Axisymmetric
Turbulent Gas-Phase Jets," AIAA paper 2002-0164, 40th Aerospace
Sciences Meeting, January 2002.
25. P.C. Bueno, Ünalmis, O.H.,
Clemens, N.T. and Dolling, D.S., "The Effects of Upstream Mass
Injection on a Mach 2 Cavity Flow," AIAA paper 2002-0663, 40th
Aerospace Sciences Meeting, January 2002.
26. P. S. Kothnur, Tsurikov,
M.S., Clemens, N. T., Donbar, J.M. and Carter, C.D., "Planar
Imaging of CH / OH and Velocity in Turbulent Nonpremixed Jet Flames,"
AIAA-2002-0167, 40th Aerospace Sciences Meeting, January 2002.
27. M. S. Tsurikov and N. T.
Clemens, "Scalar / velocity imaging of the fine scales in gas-phase
turbulent jets," AIAA 2001-0147, 39th Aerospace Sciences Mtg.,
Reno, NV, 2001.
28. P. S. Kothnur and N. T.
Clemens, "Experimental Investigation of the Relationship between
Strain and Scalar Dissipation in Gas-Phase Turbulent Jets," AIAA
2001-1023, 39th Aerospace Sciences Mtg., Reno, NV, 2001.
29. C. A. Idicheria, I.G. Boxx
and N. T. Clemens, "Large-scale flow structure in turbulent
nonpremixed flames under normal- and low-gravity conditions," AIAA
2001-0628, 39th Aerospace Sciences Mtg., Reno, NV, 2001.
30. O.H. Ünalmis, Y.X. Hou, P.C.
Bueno, N. T. Clemens and D.S. Dolling, "PIV investigation of role
of boundary layer velocity fluctuations in unsteady shock-induced
separation," AIAA 2000-2450, 21st Aerodynamic Measurement
Technology and Ground Testing Conference, Denver, CO, 2000.
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