Reduction of aerodynamic heating and drag with opposing jet through extended nozzle in high enthalpy flow

Naoki Morimoto, Shigeru Aso, Yasuhiro Tani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

The experimental and numerical investigations of an opposing jet through an extended nozzle are described. The opposing jet through the extended nozzle is a new type of thermal protection de- vices combining an opposing jet and a forward facing spike. The experimental measurements of the heat flux distribution on a hemispheric- cylindrical blunt test model were conducted in a free piston shock tunnel in Kyushu University. The present test flow condition is 5,600 m/s and Mach number at 6.6. The shock tunnel testing demonstrates capabilities of this device reduc- ing the heat flux up to 92% in hypersonic and high enthalpy flow. In addition, axisymmetric Navier-Stokes numerical simulations were car- ried out. The numerical simulations show reduc- Tion of both aerodynamic heating and drag with precise explanations of the flow field structure.

Original languageEnglish
Title of host publication29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014
PublisherInternational Council of the Aeronautical Sciences
ISBN (Electronic)3932182804
Publication statusPublished - Jan 1 2014
Event29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014 - St. Petersburg, Russian Federation
Duration: Sep 7 2014Sep 12 2014

Publication series

Name29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014

Other

Other29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014
CountryRussian Federation
CitySt. Petersburg
Period9/7/149/12/14

Fingerprint

Aerodynamic heating
Aerodynamic drag
Enthalpy
Nozzles
Heat flux
Tunnels
Hypersonic aerodynamics
Computer simulation
Pistons
Mach number
Flow fields
Railroad cars
Testing

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Materials Science(all)

Cite this

Morimoto, N., Aso, S., & Tani, Y. (2014). Reduction of aerodynamic heating and drag with opposing jet through extended nozzle in high enthalpy flow. In 29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014 (29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014). International Council of the Aeronautical Sciences.

Reduction of aerodynamic heating and drag with opposing jet through extended nozzle in high enthalpy flow. / Morimoto, Naoki; Aso, Shigeru; Tani, Yasuhiro.

29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014. International Council of the Aeronautical Sciences, 2014. (29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Morimoto, N, Aso, S & Tani, Y 2014, Reduction of aerodynamic heating and drag with opposing jet through extended nozzle in high enthalpy flow. in 29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014. 29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014, International Council of the Aeronautical Sciences, 29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014, St. Petersburg, Russian Federation, 9/7/14.
Morimoto N, Aso S, Tani Y. Reduction of aerodynamic heating and drag with opposing jet through extended nozzle in high enthalpy flow. In 29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014. International Council of the Aeronautical Sciences. 2014. (29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014).
Morimoto, Naoki ; Aso, Shigeru ; Tani, Yasuhiro. / Reduction of aerodynamic heating and drag with opposing jet through extended nozzle in high enthalpy flow. 29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014. International Council of the Aeronautical Sciences, 2014. (29th Congress of the International Council of the Aeronautical Sciences, ICAS 2014).
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