Enthalpy Distributions of Laser Driven High Enthalpy Wind Tunnel

Matsui, Makoto; Shinmi, Koji; Komurasaki, Kimiya; Arakawa, Yoshihiro

doi:10.2514/6.2008-4133

Cited by 2 publications

(3 citation statements)

References 16 publications

(17 reference statements)

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“…Since in our previous study, the throat temperature is less than 9000 K 17) , C p, el is negligible and Eq. (1) is valid.…”

Section: Sonic Flow Methodsmentioning

confidence: 80%

“…14,15) Since the LSP is produced by focusing a laser beam, it requires no-electrode and it is sustained even at the higher pressure than atmosphere. In our previous studies, 16,17) an argon-oxygen flow with the plenum pressure of 0.95 MPa was successfully produced using a 2 kW class carbon dioxide laser. However, there are still some problems to be solved.…”

Section: Introductionmentioning

confidence: 99%

“…16,17) Since the core temperature of the LSP is estimated as 18,000 K, 18) only a few percent of total working gas can path through the LSP core region due to a slightly high pressure region ahead of the LSP. 14,15) As a result, a main gas heating mechanism is not the laser absorption but the convection from the high temperature LSP to the surrounding gas.…”

Section: Introductionmentioning

confidence: 99%

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Thermal Efficiency of Laser Driven Inductively Coupled Plasma Generator Flows

Matsui

Yamagishi

Komurasaki

et al. 2010

AEROSPACE TECHNOLOGY JAPAN

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A laser driven inductively coupled plasma generator was developed. Firstly, the radio frequency (RF) of 13.56 MHz was applied to the atmospheric argon laser sustained plasma (LSP) in a quartz tube. As a result, the RF was successfully coupled to the LSP and following expansion of an emission region was observed. Next, the LSP was produced ahead of a ceramic convergent-divergent nozzle throat and the RF was applied from outside of the nozzle. The thermal efficiency estimated by a sonic flow method was ranged from 26 % to 13 %.

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“…Since in our previous study, the throat temperature is less than 9000 K 17) , C p, el is negligible and Eq. (1) is valid.…”

Section: Sonic Flow Methodsmentioning

confidence: 80%