Generation of supersonic and super-Alfvenic flow by using ICRF heating and a magnetic nozzle
Creators
- 1. Tohoku Univ., Graduate School of Engineering, Sendai, Miyagi (Japan)
- 2. Nippon Institute of Technology, Saitama (JP)
- 3. Tohoku Univ., Research Inst. of Electrical Communication, Sendai, Miyagi (JP)
Description
Fast-flowing plasmas in supersonic and super-Alfvenic regime are generated in combined experiments of ion cyclotron resonance heating (ICRH) and acceleration in a magnetic nozzle. During radio-frequency (RF) wave excitation in a fast-flowing plasma produced by a magnet-plasma-dynamic arcjet (MPDA), strong ion cyclotron heating is clearly observed. Thermal energy in the heated plasma is converted into flow energy in a diverging magnetic nozzle, where the magnetic moment μ is nearly kept at constant. Plasma flow energy can be controlled by changing the input RF power and/or modifying the magnetic nozzle configuration. In a strongly diverging magnetic nozzle, an Alfven Mach number as well as an ion acoustic Mach number attains to more than unity, that is, supersonic and super-Alfvenic plasma flow is realized. (author)
Additional details
Publishing Information
- Imprint Title
- Joint conference of 17th international Toki conference on physics of flows and turbulence in plasmas and 16th international stellarator/heliotron workshop 2007. Proceedings (1)
- Imprint Pagination
- 465 p.
- Journal Page Range
- p. 209-212
- Report number
- NIFS-PROC--69-V1
Conference
- Title
- 17. International Toki conference on physics of flows and turbulence in plasma; 16. international stellarator/heliotron workshop 2007
- Dates
- 15-19 Oct 2007
- Place
- Toki, Gifu (Japan)
INIS
- Country of Publication
- Japan
- Country of Input or Organization
- Japan
- INIS RN
- 40076498
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ALFVEN WAVES; ELECTRIC ARCS; ICR HEATING; ION TEMPERATURE; ION THRUSTERS; MACH NUMBER; MAGNETIC FIELD CONFIGURATIONS; MHZ RANGE 01-100; NOZZLES; ROCKET ENGINES; SPATIAL DISTRIBUTION; SUPERSONIC FLOW
- Descriptors DEC
- CURRENTS; DIMENSIONLESS NUMBERS; DISTRIBUTION; ELECTRIC CURRENTS; ELECTRIC DISCHARGES; ENGINES; FLUID FLOW; FREQUENCY RANGE; HEAT ENGINES; HEATING; HIGH-FREQUENCY HEATING; HYDROMAGNETIC WAVES; MHZ RANGE; PLASMA HEATING; THRUSTERS; VELOCITY
Optional Information
- Notes
- 10 refs., 6 figs.