Publications

JOURNAL PUBLICATIONS

  • Yoshikawa, K. and Ozawa, H.,(2025) “Heat Transfer Visualization of Transitional Growth of Turbulent Spot on a Wedge in Mach 5.2 Hypersonic Flow Using Fast-Response TSP”, Experiments in Fluids, 66(30), 2025.
  • Maszkiewicz, SA., Gillespie GI., Laurence, SJ., and Ozawa, H., “Experimental Investigation of Sharp-Fin-Induced Hypersonic Shock-Wave/Transitional-Boundary-Layer Interactions”, AIAA Journal (under review).
  • Yoshikawa, K., Ozawa, H., (2025) Investigation of Unit Reynolds Number Effect on Turbulent Spots on a Wedge at Mach 5.2 Using TSP, AIAA-2025-1877, AIAA SCITECH, January 10, 2025.
  • Bicak, AT., Ozawa H, Influence of Freestream Reynolds Number on Unsteady Reflected-Shock Boundary-Layer Interaction in Shock Tube Experiments, AIAA-2025-0115, AIAA Scitech 2024 (Invited)
  • Bicak, AT., Ozawa, H., Influence of Freestream Reynolds Number on Unsteady Reflected-Shock Boundary-Layer Interaction in Shock Tube Experiments, AIAA Region IV, student conference, April 2024.
  • Fluid dynamics Handbook, 3rd edition, University of Tokyo press. (joint author, to be published)
  • Whalen TJ, Laurence SJ, Marineau E, Ozawa H (2021) “A Green’s function approach to heat-flux estimation from temperature-sensitive paint measurements”, Measurement Science and Technology (Special Issue on Pressure-Sensitive and Temperature-Sensitive Paints for Measuring High Speed and Unsteady Flows), 32:114011.
  • Laurence SJ, Ozawa H, Schramm JM, Hannemann K (2021) “Combined combustion and heat-flux measurements on a supersonic jet-in-crossflow configuration using luminescent paint”, Experiments in Fluids, 62:154.
  • Hiroshi Ozawa (2020) Application of Temperature-Sensitive Paint Measurements on a Hypersonic Vehicle and in a Shock-tube, J of TSJ., ‘Turbomachinery’, Turbomachinery Society of Japan, 48(1), pp.36-42, 2020.
  • Ozawa H (2019) ”Experimental investigation of high-speed aerothermodynamics phenomena using Temperature Sensitive Paint”, the Japan Society of Fluid Mechanics, NAGARE, vol. 38, pp.156-161
  • Laurence SJ, Ozawa H, Schramm JM, Hannemann K (2019) Heat-flux measurements on a Hypersonic intake ramp using fast-response temperature sensitive paint, Exp. Fluids., 60(4):70
  • Ozawa H, Laurence SJ (2018) Experimental Investigation of the Shock-Induced Flow over a Wall-Mounted Cylinder, J. Fluid. Mech., Vol.849, pp.1009-1042.
  • Hiroki Nagai, Kazunori Mitsuo, Kazuyuki Nakakita, Yosuke Sugioka, Hiroshi Ozawa and Daisuke Yorita (2018) PSP and TSP Application in Aerospace Fields, The Visualization Society of Japan, Vol. 38, No. 148, 2018.
  • Ozawa H (2016) Experimental Study of Unsteady Aerothermodynamic Phenomena on Shock-Tube Wall using Fast-response Temperature-sensitive-Paints, Phys. Fluids, 28(4): 046103.
  • Ozawa H, Laurence SJ, Schramm JM, Wagner A, Hannemann K (2015) Fast-response temperature-sensitive-paint measurements on a hypersonic transition cone, Exp. Fluids., 56(1):1853.
  • Hannemann K, Eggers T (2013) Aerothermodynamic Research in the Spacecraft Department of the German Aerospace Center: An Overview. Jpn. Soc. Aeronaut. Space Sci., Global AERO (translated by Ozawa H).
  • Wang Y, Ozawa H, Koyama H, Nakamura Y (2013) Abort Separation of Launch Escape System Using Aerodynamic Interference. AIAA Journal, 51(2013), pp. 270-275, 2013.
  • Wang Y, Ozawa H, Nakamura Y (2012) Numerical Investigation of Supersonic Oscillatory Flow with Strong Interference over a Capsule-shaped Abort System. Trans. Jpn. Soc. Aeronaut. Space Sci., 55(2012), pp. 286-294, 2012.
  • Koyama H, Wang Y, Ozawa H, Doi K, Nakamura Y (2012) Improvement by Fence in Capsule Abort System using Supersonic Aerodynamic Interactions. Jpn. Aeronaut. Space Sci., 60(2012), pp. 74-79, 2012.
  • Yokoi H, Ozawa H, Matsumoto S, Doi K, Nakamura Y (2011) Aerodynamic Heating due to Interaction between Boundary Layer Reattachment and Rectangular Cavity in hypersonic Compression Ramp. Jpn. Soc. Aeronaut. Space Sci., 59(2011), pp. 169-175.
  • Ozawa H, Hanai K, Kitamura K, Mori K, Nakamura Y (2010) Effects of Crack on Heat Flux in Hypersonic Shock/Boundary-Layer Interaction. Jpn. Soc. Aeronaut. Space Sci., 58(2010), pp. 68-75, 2010.
  • Ozawa H, Kitamura K, Hanai K, Mori K, Nakamura Y (2010) Unsteady aerodynamic interaction between Two Bodies at Hypersonic Speed. Trans. Jpn. Soc. Aeronaut. Space Sci., 53(2010), pp. 114-121, 2010.
  • Ozawa H, Kitamura K, Hanai K, Miyoshi M, Mori K, Nakamura Y (2009) Abort System Using Supersonic Aerodynamic Interaction for Capsule-Type Space Transportation System. Jpn. Soc. Aeronaut. Space Sci., 57(2009), pp. 1-8, 2009.
  • Ozawa H, Hanai K, Nakamura Y (2008) Reduction of TSTO Hypersonic Aerodynamic Interactions Due to Diagonally-cut Circular Cylinder Orbiter Nose. Jpn. Soc. Aeronaut. Space Sci., 56(2008), pp. 8-14, 2008.
  • Kitamura K, Ozawa H, Hanai K, Mori K, Nakamura Y (2008) Investigation on Hypersonic Shock Interacting and Boundary-Layer Separating Flowfield around Two-Stage-To-Orbit Vehicle. Jpn. Soc. Aeronaut. Space Sci., 56(2008), pp. 278-285, 2008.
  • Kitamura K, Mori K, Hanai K, Yabashi T, Ozawa H and Nakamura Y (2007) Effects of TSTO Orbiter Configuration on Supersonic Flow Field with Aerodynamic Interactions, Jpn. Soc. Aeronaut. Space Sci. 55, pp. 509-515, 2007.

CONFERENCE PUBLICATIONS

  • Yoshikawa K and Ozawa H (2024) Investigation of Instability Waves and Unsteady Heat Flux on a Wedge at Mach 5.2 Using TSP, AIAA Scitech, 8-12, January, 2024, AIAA-2024-2844.
  • Takeda Y and Ozawa H (2021) Experimental Investigation of High-speed Phenomena on Surface Pressure of Hemisphere due to Shock/Shock Interactions using PSP, The Japan Society for Aeronautical and Space Sciences, July, 2021.
  • Wagner A, Schramm JM, Watermann V, Camillo GP, Ozawa H, Steelant J (2021) Boundary Layer Transition Studies on the HEXAFLY-INT Hypersonic Glide Vehicle. In: Boundary Layer Transition Studies on the HEXAFLY-INT Hypersonic Glide Vehicle, European Symposium on Laminar-Turbulent Transition in Hypersonic Regime, May, 2021
  • Wagner A, Schramm JM, Wartemann V, Camillo GP, Ozawa H (2019) Boundary Layer Transition Studies on the HEXAFLY-INT Hypersonic Glide Vehicle, ESA FAR 2019, 30 September – 03 October, 2019.
  • Ozawa H, Wagner A, Schramm JM, Hannemann K (2019) Aerothermodynamic Experiments using TSP in High-speed and Complex Flows, 7th Japanese-German Joint Seminar, “Molecular Imaging Technology for Interdisciplinary Research”, 17-19 September 2019, Hokkaido University, Sapporo, Japan.
  • Ozawa H and Laurence SJ (2018) A Transient Global Heat-Flux Measurements for High-Speed Flow over a Wall-Mounted Cylinder in a Shock Tube, 22nd AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 17-19, September, 2018, AIAA-2018-5384.
  • Laurence SJ, Ozawa H, Schramm JM, and Hanneman K (2018) Fast-response temperature sensitive paint measurements on a hypersonic inlet ramp, 22nd AIAA International Space Planes and Hypersonic Systems and Technologies Conference, 17-19, September, 2018, AIAA-2018-5383.
  • Schramm JM, Karl S, Hannemann K and Ozawa H (2018) Ultra-fast Temperature Sensitive Paint Shock Tunnel Heat Flux Measurements on the Intake of the LAPCAT II Small Scale Flight Experiment Configureation, HiSST: International Conference on High-Speed Vehicle Science Technology, 26-29 November 2018, Moscow, Russia.
  • Ozawa H (2018) Experimental Investigation of Nonstationary High-Speed Flow over a Wall-Mounted Cylinder using TSP, 12th International Workshop on Shock Tube Technology, IWSTT, Kakuda Space Center, 12-13, April, 2018.
  • Schramm JM, Ozawa H, Hannemann K, Hilfer M, Klein C, Edzards F, Jauch J, Mee D (2018) Ultra-fast Temperature Sensitive Paints (TSP) in the High Enthalpy Shock Tunnel Göttingen, HEG, 12th International Workshop on Shock Tube Technology, IWSTT, Kakuda Space Center, 12-13, April, 2018.
  • Ozawa H, Laurence SJ (2017) Heat-Flux Measurement using TSP for Unsteady Shock-Wave/Boundary-Layer Interaction induced by Circular-Cylinder on Shock-Tube Wall, 6th Japanese-German Joint Seminar, “High-speed Molecular Imaging Technology for Interdisciplinary Research”, 2017.
  • Ozawa H (2016) Highly Temperature Sensitive TSP Measurements on the Wall of newly built Shock-tube, 11th International Workshop on Shock Tube Technology, DLR Göttingen, Germany, 2016.
  • Schramm JM, Edzards F, Lieber D, Hock S, Hannemann K, Ozawa H, Beck W, Klein C (2016) Development of Ultra-fast Temperature Sensitive Paints forHypersonic High Speed Flows, 11th International Workshop on Shock Tube Technology, IWSTT, 29th June – 1st July, 2016, Göttingen.
  • Ozawa H (2016) A highly temperature sensitive and ultra-fast response TSP (Temperature-Sensitive-Paints) for unsteady aerothermodynamics on shock-tube wall, AIAA Aviation 2016, 46th Fluid Dynamics Conference, AIAA-2016-3934, 2016.
  • Ozawa H (2015) Visualization of Unsteady Boundary-Layer Transition on Shock-Tube Wall using Highly Sensitive Fast-responseTSP, 20thAIAA International Space Planes, Hypersonic Systems and Technologies Conference, AIAA-2015-3658, 2015.
  • Martinez Schramm J, Hannemann K, Ozawa H, Beck W and Klein C (2015) Development of Temperature Sensitive Paints for The High Enthalpy Shock Tunnel Göttingen, HEG. 8th European Symposium on Aerothermodynamics for Space Vehicles, 2-6, March, 2015.
  • Ozawa H (2015) Transient Measurements for Unsteady Fluid Phenomena on Shock-Tube Wall using Highly Sensitive TSP, “Molecular Imaging Technology for Interdisciplinary Research”, 23-25 September 2015, AIST, Tsukuba, Japan.
  • Laurence SJ, Wagner A, Ozawa H, Hannemann K (2014) Visualization of Hypersonic Boundary-Layer Transition on a Slender Cone. 19th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference, 19, June, AIAA 2014-3110 (Invited).
  • Laurence SJ, Ozawa H, Lieber D, Schramm JM, Hannemann K (2012) Investigation of Unsteady/Quasi-Steady Scramjet Behavior using High-Speed Visualization Techniques. 18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference, AIAA-2012-5913, 2012.
  • Yokoi H, Ozawa H, Koyama H, Nakamura Y (2012) Aerodynamic Heating of an Open Cavity in Hypersonic Compression Ramp Flow. 50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, Nashville, Tennessee, Jan. 9-12, 2012, AIAA Paper 2012-0286.
  • Ozawa, H., Schramm, J. M., and Hannemann, K (2012) TSP Development for the High Enthalpy Shock Tunnel Göttingen (HEG), 3rd Japanese-German Joint Seminar, “Molecular Imaging Technology for Interdisciplinary Research”, 3-5 September 2012, JAXA, Chofu, Tokyo, Japan.
  • Wang Y, Ozawa H, Koyama H, Nakamura Y (2011) Simulation of supersonic stage separation of capsule-shaped abort system by aerodynamic interaction. 20th AIAA Computational Fluid Dynamics Conference, AIAA-2011-3064.
  • Ozawa, H (2010) Heat Flux in Two-Body Combination in Hypersonic Flow, 1st Joint Workshop of Hanoi University of Technology and Nagoya University, 18-19 March 2010, Hanoi, Vietnam.
  • Ozawa H, Mori K, Nakamura Y (2009) Experimental Analysis of TSTO Aerodynamic Interactions Based on Oil Flow Patterns at Hypersonic Speed. 47th AIAA Aerospace Sciences Meeting Including The New Horizons Forum and Aerospace Exposition, AIAA-2009-1286.
  • Ibrahim, M. K., Matsumoto, S., Ozawa, H., Mori, K. and Nakamura, Y (2008) Visualization of Flow Field over Rotating Blades using Pressure Sensitive Foil Technique, 47th AIAA Aerospace Sciences Meeting Including The New Horizons Forum and Aerospace Exposition, AIAA-2009-1286.
  • Ozawa H, Yokoi H, Mori K, Nakamura Y (2008) Effect of Clearance between Two-Body on Heat Flux in Hypersonic Compression Ramp. 2008 KSAS-JSASS Joint International Symposium on Aerospace Engineering, pp. 346-349, 2008.
  • Ozawa H, Hanai K, Ibrahim MK, Mori K, Nakamura Y (2008) Experimental Analysis of TSTO Aerodynamic Heating Problems at Hypersonic Speed. 15thAA International Space Planes and Hypersonic Systems and Technologies Conference, AIAA-2008-2671, 2008.
  • Ozawa H, Hanai K, Kitamura K, Mori K, Nakamura Y (2008) Experimental Investigation of Shear-Layer/Body Interactions in TSTO at Hypersonic Speed. 46th AIAA Aerospace Sciences Meeting and Exhibit, AIAA-2008-723, 2008.
  • Ozawa, H (2008) Experimental Investigation of TSTO Aerodynamic Interaction Flowfield at Hypersonic speed, The 26th International Symposium on Space Technology and Science (ISTS), 6 June 2008, Hamamatsu, Japan.
  • Ozawa, H. and Nakamura, Y (2008) Shock/Shock and Shock/Boundary-Layer Interactions in Two Bodies at Hypersonic Speed, Nagoya-COE and Beijing-LHD Joint Workshop on “Frontier of Computational Science”, Nagoya, Japan, 2008.
  • Hanai, K., Ozawa, H. and Nakamura, Y (2007) Two-Stage-To-Orbit Booster Configuration for Reducing Aerodynamic Heating at Hypersonic Speed, 37th AIAA Fluid Dynamics Conference and Exhibit 25 – 28 June 2007, Miami, FL, AIAA-2007-4220.
  • Ozawa, H. and Nakamura, Y (2007) Supersonic and Hypersonic Aerodynamic Interactions in Two-Body Combination, Agreement on Joint Projects with LHD in China, 2007.

INVITED TALK

  • Ozawa H (2013) TSP Development for the High Enthalpy Shock Tunnel Göttingen (HEG), JSME, Fluids. Eng. Div., lecture meeting. No. 13-72, Nihon Univ., 2013.
  • Ozawa H (2017) Heat-Flux Measurement using TSP for unsteady Shock-Wave/Boundary-Layer Interaction induced by Circular-Cylinder on Shock-Tube Wall, Institute colloquium AS GÖ, DLR, Göttignen, 2017
  • Ozawa H (2019) Experimental investigation of high-speed aerothermodynamics phenomena using Temperature Sensitive Paint, Award for Distinguished Young Researcher in Fluid Mechanics, Fluid dynamics conference, 2019.
  • Ozawa H (2021) Frontier Research Issues in High-speed Aerothermodynamics, GSC seminar at University of Oklahoma, September, 2021.