ISSW31

issw31
The 31st International Symposium on Shock Waves (ISSW31) will be held July 9-14, 2017, at Nagoya University.

About Shock Wave and Space Propulsion Laboratory

We aim for innovations in aero/astronautics and propulsion with understanding physics of shock waves and plasma/high-enthalpy flows.

Nagoya Univ. “Leadership Development Program for Space Exploration and Research”

Students who decided to studey at doctoral course and passed admission examination, are employed as Research Assistants (RA) from master’s course. RAs can participate in the related programs. http://www.frontier.phys.nagoya-u.ac.jp/

Stop Rotation of Debris by Laser Ablation

Fragments of the rocket components and the satellites, the so-called “space debris”, are threatening the safety in earth orbit. It is said that more than 500 thousand of debris is orbiting with extremely high speed (7.9 km/s, for example). So, space debris mitigation is one of the most urgent problems in the space development field.
 In our Laboratory, the technique of deorbiting debris by laser ablation is studied. To demonstrate validity of the deorgiting method, we attempted to stop rotation of miniature satellite model by laser irradiation. Rotation of the model is almost terminated with generated impulse of laser ablation.

News

2016.05.18
  • An article written by Furukawa et al. was published on AIP Physics of fluids. The article is available on the following link in free until 28th May.(Detail)
    Title

    Moderation of near-field pressure over a supersonic flight model using laser-pulse energy deposition

2016.04.28
  • An article written by Iwakawa et al. was published on Aerospace. The article is available on the following link in free until 28th April.(Detail)
    Title

    Suppression of Low-Frequency Shock Oscillations over Boundary Layers by Repetitive Laser Pulse Energy Deposition

2016.03.10
  • Publication has been updated.
  • An article written by Iwakawa et al. was published on Transactions of The Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan. The article is available on the following link.(Detail)
    Title

    Ring Force Balance System for Small Wind Tunnels

  • An article written by Uchigashima(M2) et al. was published on IEEE Transactions on Plasma Science. The article is available on the following link.(Detail)
    Title

    Anode Geometry Effects on Ion Beam Energy Performance in Helicon Electrostatic Thruster

2015.11.21
  • Takahiro Tamba(D1) was awarded the Chubu Branch Aaward at 13th JSFM Chubu branch symposium.
2015.11.09
  • Daisuke Ichihara(D2) was awarded the Best Student Award, Akira Uchigashima(M2) was awarded the Chubu Branch Aaward at 52th JSASS Kansai-Chubu branch joint autumn symposium.
2015.10.21
  • Conference has been updated.
  • Daiki Furukawa(M2) is going to present a paper at 53rd Aircraft Symposium.
2015.09.30
  • An article related to shock wave-boundary layer interaction written by Tamba et al. was published on Physics of Fluids. The article is available on the following link in free until 28th October.(Detail)
    Title   Abstract

    Frequency modulation in shock wave-boundary layer interaction by repetitive-pulse laser energy deposition

    The effect of laser energy deposition on shock wave oscillation induced by interaction with boundary layer was experimentally investigated. In the case of laser energy deposition with 40 kHz or higher, singular modulation of the oscillation frequency was observed.

2015.09.09
  • Publication has been updated.
  • An article, “Counter-driver shock tube,” appeared online.(Detail)
    Title Abstract

    Counter-driver shock tube

    A “counter-driver” shock tube was developed. In this device, two counter drivers are actuated with an appropriate delay time to generate the interaction between a shock wave and a flow in the opposite direction which is induced by another shock wave. The conditions for the counter drivers can be set independently. Each driver is activated by a separate electrically controlled diaphragm rupture device, in which a pneumatic piston drives a rupture needle with a temporal jitter of better than 1.1 ms. Operation demonstrations were conducted to evaluate the practical performance.

2015.08.17
  • Publication has been updated.
  • An article, “In-Tube Catapult Launch from Rectangular-Bore Aeroballistic Range,” appeared in print.(Detail)
    Title Sasoh Akihiro, Takahiro Imaizumi, Atsushi Toyoda, Takeshi Ooyama “In-Tube Catapult Launch from Rectangular-Bore Aeroballistic Range.” AIAA Journal, Vol.53, No.9, pp. 2781-2784, 2015.
2015.07.06
  • Conference has been updated.
  • Daiki Furukawa(M2) is going to present a paper at 30th ISTS /34th IEPC and 6th NSAT
  • Akira Uchigashima(M2) is going to present a paper at 34th International Electric Propulsion Conference
2015.06.12
  • Conference has been updated.
  • Ass. Prof. IWAKAWA is going to present a paper at The 30th International Symposium on Shock Waves
  • Ass. Prof. IWAKAWA is going to present a paper at 第47回流体力学講演会/第33回航空宇宙数値シミュレーション技術シンポジウム
  • Ass. Prof. IWAKAWA is going to present a paper at Energy Depositions.
  • Ass. Prof. IWAKAWA is going to present a paper at Aviation 2015.
2015.04.01
  • This website has renewed.
2015.01.13
  • Conference has been updated. BABA, Teruaki is going to present a paper.
Past Update is here.