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Publications

Journal Papers

  • Huy Quang Ho, Masahito Asai, Shohei Takagi: Experiments on dependency of streak breakdown on disturbance nature, European Journal of Mechanics B/Fluid, 66 (2017) 1-9.
  • Ressa Octavianty and Masahito Asai: Effects of short splitter plates on vortex shedding and sound generation in flow past two side‑by‑side square cylinders, Experiments in Fluids, 57(9), 143 (2016).
  • Ressa Octavianty, Masahito Asai and Ayumu Inasawa: Experimental study on vortex shedding and sound radiation from a rectangular cylinder at low Mach numbers, Transactions of Japan Society for Aeronautical and Space Sciences, 59(9), 261-268 (2016).
  • Ressa Octavianty and Masahito Asai: Synchronized vortex shedding and sound radiation from two side-by-side rectangular cylinders of different cross-sectional aspect ratios, Physics of Fluids, 27, 107103 (2015).
  • Tomoaki Ikeda, Takashi Atobe, Daisuke Fujimoto, Ayumu Inasawa and Masahito Asai: Self-noise Effects on Aerodynamics of Cambered Airfoils at Low Reynolds Number, AIAA Journal, 53(8) (2015) 2256-2269.
  • Masashi Kobayashi, Masahito Asai: Experimental investigation of influences of roughness receptivity on protuberance noise, Journal of the Physical Society of Japan, 84, 014404 (2015).
  • Masashi Kobayashi, Masahito Asai and Ayumu Inasawa: Experimental investigation of sound generation by a protuberance in a laminar boundary layer, Physics of Fluids 26, 084108 (2014).
  • Inasawa A., Floryan M.J. and Asai M.: Flow Recovery Behind a Surface Protuberance, Journal of Theoretical and Computational Fluid Mechanics, 28(4) (2014) 428-447.
  • Mochamad D Ma’mun and Masahito Asai: Influences of Oblique Surface Corrugation on Boundary-Layer Instability, Journal of the Physical Society of Japan, 83, 084402 (2014).
  • Mochamad Dady Ma’mun, Masahito Asai and Ayumu Inasawa: Effects of surface corrugation on the stability of zero-pressure-gradient boundary layer, Journal of Fluid Mechanics, 741 (2014) 228-251.
  • Jiro Mizushima, Genta Hatsuda, Hiroshi Akamine, Ayumu Inasawa, and Masahito Asai: Rapid annihilation of the K´arm´an vortex street behind a rectangular cylinder, Journal of the Physical Society of Japan, 83 (1) (2014) 014402.
  • Inasawa A., Ninomiya C. and Asai M.: Suppression of Tonal Trailing-Edge Noise From an Airfoil Using a Plasma Actuator, AIAA Journal 51(7) (2013) 1695-1702.
  • Inasawa A., Asai M. and Nakano T.: Sound generation in the flow behind a rectangular cylinder of various aspect ratios at low Mach numbers, Computers & Fluids, 82 (2013) 148-157.
  • Inasawa A., Mori F. and Asai M.: Detailed Observations of Interaction of Wing-Tip Vortices in Close Formation Flight, Journal of Aircraft, 49(1) (2012) 206-213.
  • Floryan J.M. and Asai M.: On the transition between distributed and isolated surface roughness and its effect on the stability of channel flow, Physics of Fluids, 23, 104101 (2011).
  • Asai, M. Inasawa, A., Konishi, Y. Hoshino, S. and Takagi, S.: Experimental study on the instability of wake of axisymmetric streamlined body, Journal of Fluid Mechanics 675 (2011) 574-595.
  • Konishi, Y. and Asai, M.: Development of Subharmonic Disturbance in Spanwise-Periodic Low-Speed Streaks, Fluid Dynamics Research 42 (2010) 035504.
  • Makiya, S., Inasawa, A.and Asai, M.: Vortex shedding and noise radiation from a slat trailing edge, AIAA Journal, 48, 2 (2010) 502-509.
  • Imai, T. and Asai, M.: Receptivity of the shear layer separating from a rear-edge of flat plate, Fluid Dynamics Research 41 (2009) 035506.
  • Asai, M., Konishi, Y., Oizumi, Y. and Nishioka, M.: Growth and breakdown of low-speed streaks leading to wall turbulence, Journal of Fluid Mechanics 586 (2007) 371-396.
  • Asai, M. and Floryan, J.M.: Experiments of the linear instability of flow in a wavy channel, European Journal of Mechanics B/Fluids 25 (2006) 971-986.
  • Asai, M., Shimada, T. and Imai, T.:Experimental study on the separation control of turbulent boundary layers by vortex excitation, Trans. Japan Society for Aeronautical and Space Sciences 47 (2005) 256-261.
  • Konishi, Y. and Asai, M.: Experimental investigation of the instability of spanwise-periodic low-speed streaks, Fluid Dynamics Research 34 (2004) 299-314.
  • Asai, M., and Floryan, J.M.: Certain aspects of channel entrance flow, Physics of Fluids 16 (2004) 1160-1163.
  • Saitoh, N., Asai, M. and Itoh, N.: Development of localized disturbances from an oscillating point source in compressible boundary layers, Trans. Japan Society for Aeronautical and Space Sciences 45 (2003) 211-216.
  • Asai, M., Minagawa, M. and Nishioka, M : The Instability and breakdown of a near-wall low-speed streak, Journal of Fluid Mechanics 455 (2002) 289-314.
  • Asai, M., Saitoh, N. and Itoh, N: Instability of compressible three-dimensional boundary layers to stationary Disturbances, Trans. Japan Society for Aeronautical and Space Sciences 43 (2001) 190-195.
  • Asai, M. and Kaneko, M.: Experimental investigation of receptivity of of a shear layer separating at a convex corner, Fluid Dynamics Research 27 (2000) 117-128.

Conference Papers

  • Ressa Octavianty and Masahito Asai: Control of sound generation in flow past two side-by-side square cylinders by short splitter plates, 11th European Fluid Mechanics Conference, Seville, Spain, 12-16 Sept. 2016.
  • Masahito Asai, Yusuke Yoshida and Shohei Takagi: Experimental investigation of instability of convecting local high-shear layer, 24th ICTAM, Montreal, 21-26 August 2016.
  • Shohei Takagi, Yasufumi Konishi, Nobutake Itoh, Masahito Asai and Shigeru Obayashi: Detection of a logarithmic singular point behind an airfoil model at low Reynlds numbers, 24th ICTAM, Montreal, 21-26 August 2016.
  • Ressa Octavianty and Masahito Asai: Experiments on sound radiation in flow past two side-by-side square cylinders, International Conference on Jets, Wakes and Separated flows, Stockholm, 16-18 June, 2015, Springer Proceedings in Physics (2016).
  • Huy Quang Ho, Masahito Asai and Shohei Takagi: Breakdown of a low-speed streak caused by turbulent fluctuations, International Conference on Jets, Wakes and Separated flows, Stockholm, 16-18 June, 2015, Springer Proceedings in Physics (2016).
  • Ressa Octavianty and Masahito Asai: Experimental study on sound from two side-by-side rectangular cylinders with slightly different aspect ratios, 11th International Conference on Flow Dynamics, Sendai, 8-10 Oct. 2014.
  • K. Okabayashi, T. Matsue, M. Asai and H. Naito: RANS Modeling for Flows on Riblets based onExperimental Data, 29th Congress of the International Council of the Aeronautica Sciences, Petersburg, 7-12 Sept. 2014.
  • Masashi Kobayashi and Masahito Asai: Experimental investigation of the influence of roughness receptivity on protuberance noise, 11th International Conference on Flow Dynamics, Sendai, 8-10 Oct. 2014.
  • Masashi Kobayashi, Masahito Asai and Ayumu Inasawa:Experiments on protuberance noise in laminar boundary layer, European Fluid Mechanics Conference 10, Copenhagen, Sept. 2014.
  • Ressa Octavianty, Ayumu Inasawa and Masahito Asai, Experimental study on sound radiation from a rectangular cylinder at low Mach numbers, 14th Asian Conference of Fluid Mechanics, Hanoi, Oct. 15-19, 2013.
  • Masashi Kobayashi, Ayumu Inasawa and Masahito Asai: Experimental study on sound radiation from a protuberance in boundary layer flows, 14th Asian Conference of Fluid Mechanics, Hanoi, Oct. 15-19, 2013.
  • T. Ikeda, D. Fujimoto, M. Asai and A. Inasawa: Unsteady Aerodynamic Characteristics of Cambered Four-digit NACA Airfoils at Low Reynolds Number, AIAA Science and Technology Forum and Exposition 2014, Jan. 13-17, 2014, USA.
  • Daisuke Fujimoto, Tomoaki Ikeda, Masahito Asai and Ayumu Inasawa: An experimental study of airfoil tones and their effects on aerodynamic characteristics at low Reynolds number, The 2013 Asia-Pacific International Symposium on Aerospace Technology, Nov 20-22, 2013, Takamatsu.
  • Octavianty R., Inasawa A., Asai M., Experimental study on sound generation in the wake of a rectangular cylinder, Workshop on Investigation and Control of Transition to Turbulence in UEC, Tokyo, March 2013.
  • Mamun M. D., Asai M., Inasawa A. and Shigeta M., Effects of surface corrugation on boundary layer instability,　１3th International Congress of Theoretical and Applied　Mechanics, Beijing, Aug, 2012.
  • Inasawa A., Ninomiya C. and Asai M., Suppression of the trailing-edge noise using a plasma actuator, 8th Australasian Fluid Mechanics Conference, Launceston，Australia, December 2012.
  • Asai M.: Streak Breakdown Leading to Wall Turbulence, Plenary Lecture, Proc.the Sixth International Conf. Fluid Mechanics, Guangzhou, June 30-July 3, 2011. In Recent Progress in Fluid Dynamics Research (eds: Jiachun Li and Song Fu), AIP, 23-28.
  • Inasawa A., Asai M., Itoh K. and Kamijyo T.:Suppression control of trailing-edge noise using a plasma actuator, International Conf. Fluid Mechanics, Guangzhou, June 30-July 3, 2011.In Recent Progress in Fluid Dynamics Research (eds: Jiachun Li and Song Fu), AIP, 533-535
  • Inasawa A., Nakano T. and Asai M.: Development of wake vortices for a rectangular cylinder of various aspect ratios and the associated sound radiation, the Seventh International Symposium on Turbulence and Shear Flow Phenomena, Ottawa, Canada, 28-31 July, 2011.
  • Asai, M.: Effects of roughness on the stability of wall-bounded shear flows, Plenary lecture, 13th Asian Congress of Fluid Mechanics, Dhaka,17-21 Dec. 2010.
  • Inasawa, A., Kamijo, T. and Asai, M.: Generation mechanism of trailing-edge noise of airfoil at low Reynolds, 13th Asian Congress of Fluid Mechanics, Dhaka,17-21 Dec. 2010.
  • Inasawa, A., Asai, M. and Floryan, J.M.: The influence of change in surface geometry on the stability of flow in a channel, Euromech Fluid Mechnics Conference 8, Germany, 13-16 Sept. 2010.
  • Inasawa, A., Floryan, J.M. and Asai, M., Certain Aspect of Instability of Flow in a Channel with Expansion/Contraction, Proc. 7th IUTAM Symp. Laminar-Turbulent Transition , Stockholm, 2009 (eds. P. Schlatter and D.S. Henningson), Springer-Verlag (2010) 501-504.
  • Asai, M., Yamanouchi, M., Inasawa, A. and Konishi, Y., Instability and Breakdown of Low-Speed Streaks under High-Intensity Turbulence, Proc. 7th IUTAM Symp. Laminar-Turbulent Transition , Stockholm, 2009 (eds. P. Schlatter and D.S. Henningson), Springer-Verlag (2010) 81-86.
  • Floryan, J.M. and Asai, M. (2008) On the transition between distributed and isolated surface roughness and its effect on the stability of channel flow, ICTAM, Adelaide.
  • Hoshino, S., Inasawa, A., Asai, M., Konishi, Y., Takagi, S. and Sawada, H. (2008) Experimental study on the instability of axisymmetric wake of a moderately slender body, Proc.12th Asian Conference of Fluid Mechanics, Daejen.
  • Makiya, S., Asai, M. and Inasawa, A. (2008) Vortex shedding and noise generation around a leading-edge slat at low Reynolds numbers, Proc. 12th Asian Conference of Fluid Mechanics, Daejen.
  • Asai, M. and Imai, T. (2007) Experimental Study on the Receptivity of Shear Layer Separating at a Rear-Edge of Boundary-Layer Plate, Proc. 5th Joint ASME/JSME Fluid Engineering Conference, San Diego, FEDSM, 1, SYMPOSIA (part B) 1127-1134.
  • Inasawa, A., Toda, K. and Asai, M. (2007) Experimental study on the stability of the flow behind an accelerating circular cylinder, 5th Joint ASME/JSME Fluid Engineering Conference, San Diego, FEDSM, 1, SYMPOSIA (part B) 1069-1076.
  • Asai, M., Konishi, Y., Oizumi, Y. and Nishioka, M.: Development of streamwise streaks in a quasi-laminar boundary layer downstream of localized suction, IUTAM Symp. Laminar-Turbulent Transition, Bangalore, Fluid Mechanics and Its Applications 78, Springer (2006) 305-310.
  • Asai, M. and Konishi, Y: Instability of low-speed streaks leading to wall turbulence, Proc. IUTAM Symp. Elementary Vortices and Coherent Structures: Significance of Turbulence Dynamics, Kyoto, Fluid Mechanics and Its Applications (ed. S. Kida) 79, Springer (2006) 235-240.
  • Asai, M. and Konishi, Y. (2006) Response of near wall low-speed streaks to high-intensity turbulence, Proc. 11th Asian Cong. Fluid Mech., Kuala Lumpur.
  • Konishi, Y. and Asai, M. (2004) Development of subharmonic sinuous mode in low-speed streaks, Proc. 10th Asian Cong. Fluid Mech., Sri Lanka.
  • Konishi, Y. and Asai, M. (2004) Experimenta investigation of the instability of laminar low-speed streaks, Proc. 9th Asian Congress of Fluid Mechanics Isfahan.
  • Asai, M., Fukuoka, A. and Nishioka, M.: (2000) Instability and breakdown of the a near-wall low-speed streak, Proc. ICTAM, Chicago.
  • Asai, M., Minagawa, M. and Nishioka, M.: Instability and breakdown of the three-dimensional high-shear layer associated with a near-wall low-speed streak, Proc. IUTAM Symp. Laminar-Turbulent Transition, Sedona (eds. H. Fasel and W. Saric), Springer-Verlag (2000) 269-274.
  • Sakaue, S., Asai, M. and Nishioka, M.: On the receptivity process of supersonic laminar boundary layer, Proc. IUTAM Symp. Laminar-Turbulent Transition, Sedona (eds. H. Fasel and W. Saric), Springer-Verlag (2000) 481-486.