Publication detail

Theoretical Analysis of the Influence of Diffusion in Free Jet of Hot Gas Mixture

GREGOR, J., JAKUBOVÁ, I., ŠENK, J.

Original Title

Theoretical Analysis of the Influence of Diffusion in Free Jet of Hot Gas Mixture

Type

abstract

Language

English

Original Abstract

The theoretical analysis of the influence of diffusion on the distribution of mass fractions in free jet of hot gas mixture is based on the vector form of the continuity equation, including the diffusion member. Measured and computed quantities at the output of the arc heater (temperature profile, composition, thermodynamic and transport properties of the used gas mixture) are used as the initial conditions. The influence of diffusion is analyzed using the measured temperature and velocity fields in the cross-sections of the jet along the z-axis. The approximation of radial dependencies of temperature and velocity by Gaussian function makes possible the integration in radial direction. Consequently, the two-dimensional problem in cylindrical co-ordinates can be transformed into the one-dimensional one. Solving the complete continuity equation, the relations for the distribution of mass fractions can be derived, including the components normally present in the surrounding environment (argon and water vapour in air).

Keywords

hot gas mixture, diffusion, continuity equation

Authors

GREGOR, J., JAKUBOVÁ, I., ŠENK, J.

Released

15. 6. 2004

Publisher

Organizing Comittee SPPT21 and FE CTU, Prague

Location

Praha

ISBN

80-01-03015-6

Pages from

80

Pages to

80

Pages count

1

BibTex

@misc{BUT59959,
  author="Jan {Gregor} and Ivana {Jakubová} and Josef {Šenk}",
  title="Theoretical Analysis of the Influence of Diffusion in Free Jet of Hot Gas Mixture",
  year="2004",
  pages="1",
  publisher="Organizing Comittee SPPT21 and FE CTU, Prague",
  address="Praha",
  isbn="80-01-03015-6",
  note="abstract"
}