A study on increase of duration of a free piston shock tunnel

M. Mizoguchi, S. Aso, S. Futae, K. Hayashi

研究成果: 会議への寄与タイプ論文

抄録

In the present study, performance of a free-piston shock tunnel driver section, which is equipped with a convergent-divergent diaphragm section, has been investigated analytically, experimentally and numerically. Measurements of shock Mach number, pressure and holding time of the constant pressure in stagnation region have been conducted under the conditions of non-over and over drive operation. Experimental results show qualitatively good agreements with analytical study. And the results show that a disadvantage by using the convergent-divergent diaphragm section has been improved by applying the over drive operation, and duration of constant pressure in the stagnation region is increased. Axisymmetric full Navier-Stokes equations have been solved to study the starting process of the driver section. Numerical results show that vortex and secondary shock wave are generated at the inlet of convergent-divergent diaphragm section, which was not assumed in the analytical study. And the quantitative differences between experimental results and analytical ones are shown to be caused by the complicated flow field. Consequently, investigation of the flow field and increase of duration by use of the convergentdivergent diaphragm section for the small size free piston shock tunnel have been achieved.

元の言語英語
ページ10459-10468
ページ数10
出版物ステータス出版済み - 7 1 2004
イベント42nd AIAA Aerospace Sciences Meeting and Exhibit - Reno, NV, 米国
継続期間: 1 5 20041 8 2004

その他

その他42nd AIAA Aerospace Sciences Meeting and Exhibit
米国
Reno, NV
期間1/5/041/8/04

Fingerprint

Diaphragms
Pistons
Tunnels
Flow fields
Shock waves
Navier Stokes equations
Mach number
Vortex flow

All Science Journal Classification (ASJC) codes

  • Engineering(all)

これを引用

Mizoguchi, M., Aso, S., Futae, S., & Hayashi, K. (2004). A study on increase of duration of a free piston shock tunnel. 10459-10468. 論文発表場所 42nd AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV, 米国.

A study on increase of duration of a free piston shock tunnel. / Mizoguchi, M.; Aso, S.; Futae, S.; Hayashi, K.

2004. 10459-10468 論文発表場所 42nd AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV, 米国.

研究成果: 会議への寄与タイプ論文

Mizoguchi, M, Aso, S, Futae, S & Hayashi, K 2004, 'A study on increase of duration of a free piston shock tunnel', 論文発表場所 42nd AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV, 米国, 1/5/04 - 1/8/04 pp. 10459-10468.
Mizoguchi M, Aso S, Futae S, Hayashi K. A study on increase of duration of a free piston shock tunnel. 2004. 論文発表場所 42nd AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV, 米国.
Mizoguchi, M. ; Aso, S. ; Futae, S. ; Hayashi, K. / A study on increase of duration of a free piston shock tunnel. 論文発表場所 42nd AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV, 米国.10 p.
@conference{1cc7c7c5030e4543ac3b00fdcb0750a7,
title = "A study on increase of duration of a free piston shock tunnel",
abstract = "In the present study, performance of a free-piston shock tunnel driver section, which is equipped with a convergent-divergent diaphragm section, has been investigated analytically, experimentally and numerically. Measurements of shock Mach number, pressure and holding time of the constant pressure in stagnation region have been conducted under the conditions of non-over and over drive operation. Experimental results show qualitatively good agreements with analytical study. And the results show that a disadvantage by using the convergent-divergent diaphragm section has been improved by applying the over drive operation, and duration of constant pressure in the stagnation region is increased. Axisymmetric full Navier-Stokes equations have been solved to study the starting process of the driver section. Numerical results show that vortex and secondary shock wave are generated at the inlet of convergent-divergent diaphragm section, which was not assumed in the analytical study. And the quantitative differences between experimental results and analytical ones are shown to be caused by the complicated flow field. Consequently, investigation of the flow field and increase of duration by use of the convergentdivergent diaphragm section for the small size free piston shock tunnel have been achieved.",
author = "M. Mizoguchi and S. Aso and S. Futae and K. Hayashi",
year = "2004",
month = "7",
day = "1",
language = "English",
pages = "10459--10468",
note = "42nd AIAA Aerospace Sciences Meeting and Exhibit ; Conference date: 05-01-2004 Through 08-01-2004",

}

TY - CONF

T1 - A study on increase of duration of a free piston shock tunnel

AU - Mizoguchi, M.

AU - Aso, S.

AU - Futae, S.

AU - Hayashi, K.

PY - 2004/7/1

Y1 - 2004/7/1

N2 - In the present study, performance of a free-piston shock tunnel driver section, which is equipped with a convergent-divergent diaphragm section, has been investigated analytically, experimentally and numerically. Measurements of shock Mach number, pressure and holding time of the constant pressure in stagnation region have been conducted under the conditions of non-over and over drive operation. Experimental results show qualitatively good agreements with analytical study. And the results show that a disadvantage by using the convergent-divergent diaphragm section has been improved by applying the over drive operation, and duration of constant pressure in the stagnation region is increased. Axisymmetric full Navier-Stokes equations have been solved to study the starting process of the driver section. Numerical results show that vortex and secondary shock wave are generated at the inlet of convergent-divergent diaphragm section, which was not assumed in the analytical study. And the quantitative differences between experimental results and analytical ones are shown to be caused by the complicated flow field. Consequently, investigation of the flow field and increase of duration by use of the convergentdivergent diaphragm section for the small size free piston shock tunnel have been achieved.

AB - In the present study, performance of a free-piston shock tunnel driver section, which is equipped with a convergent-divergent diaphragm section, has been investigated analytically, experimentally and numerically. Measurements of shock Mach number, pressure and holding time of the constant pressure in stagnation region have been conducted under the conditions of non-over and over drive operation. Experimental results show qualitatively good agreements with analytical study. And the results show that a disadvantage by using the convergent-divergent diaphragm section has been improved by applying the over drive operation, and duration of constant pressure in the stagnation region is increased. Axisymmetric full Navier-Stokes equations have been solved to study the starting process of the driver section. Numerical results show that vortex and secondary shock wave are generated at the inlet of convergent-divergent diaphragm section, which was not assumed in the analytical study. And the quantitative differences between experimental results and analytical ones are shown to be caused by the complicated flow field. Consequently, investigation of the flow field and increase of duration by use of the convergentdivergent diaphragm section for the small size free piston shock tunnel have been achieved.

UR - http://www.scopus.com/inward/record.url?scp=2942741145&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=2942741145&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:2942741145

SP - 10459

EP - 10468

ER -