Numerical simulation on transient characteristics of closed loop MHD experimental facility

Hidemasa Takana, Susumu Izumi, Yoshihiro Okuno, Hiroyuki Yamasaki

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

Abstract

Transient responses of the closed loop MHD experimental facility from non-power generation to power generation have been investigated by means of time-dependent quasi-one-dimensional numerical simulations. For the long-time continuous power generation experiment, the time required to obtain the steady state for the power generation is estimated to be approximately 20 hours. By increasing the electrical input power to the heater as an exponential function of time, the temperature increase of the ceramics can be moderated. When the duration of the experiment is around 10 minutes, argon gas temperature at the exit of the heater hardly changes because of the large heat capacity of the structure materials. It is found that the fluid disturbances are induced at the instant of the power generation and propagate as it reflects at the sudden change of the duct shape. Since the disturbances disappear taking approximately 0.4 second, the time scale that the disturbances exist in the facility can be 1 second at largest.

Original languageEnglish
Title of host publication35th AIAA Plasmadynamics and Lasers Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781624100321
DOIs
Publication statusPublished - 2004
Event35th AIAA Plasmadynamics and Lasers Conference 2004 - Portland, OR, United States
Duration: 2004 Jun 282004 Jul 1

Publication series

Name35th AIAA Plasmadynamics and Lasers Conference

Conference

Conference35th AIAA Plasmadynamics and Lasers Conference 2004
Country/TerritoryUnited States
CityPortland, OR
Period04/6/2804/7/1

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics

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