Wall Confinement Technique by Magnetic Gradient Inversion

• Authors: J. Petit , J. Dore
• Languages of publication: EN

Abstracts

EN

When a plasma is subjected to a transversal magnetic field and its Hall parameter is non-negligible, it weakens the local electric conductivity value. If an electric discharge is created near a wall and the magnetic field decreases with distance, the electric discharge will follow a path that minimises the streamer's electric resistance, which could expel it far from the wall. One solution to ensure that it remains up against the wall is by inversion of the magnetic field's gradient by arranging that field B be minimal at the wall. In the experiment we are presenting, effected in a low-density gas, in order to obtain a high value for the Hall parameter using simple permanent magnets, we will show the remarkable efficiency of this parietal confinement method and present the main lines of the programme of which this experiment forms part and whose successful realization will be the demonstration of the feasibility of the displacement of disk-shaped MHD aerodynes at supersonic speed without creating either shock waves or turbulence, an approach that we have already set out in numerous publications.

Keywords

EN

47.65.-d; 52.30.Cv; 52.55.-s; 52.80.Pi; 52.75.Di

Discipline

• 52.55.-s: Magnetic confinement and equilibrium(see also 28.52.-s Fusion reactors)
• 47.65.-d: Magnetohydrodynamics and electrohydrodynamics(see also 47.35.Tv Magnetohydrodynamic waves; 52.30.Cv Magnetohydrodynamics, and 52.65.Kj Magnetohydrodynamics and fluid equation in Physics of plasmas and electric discharges; 83.80.Gv Electro- and magnetorheological fluids in Rheology)
• 52.75.Di: Ion and plasma propulsion
• 52.30.Cv: Magnetohydrodynamics (including electron magnetohydrodynamics)(see also 47.65.-d Magnetohydrodynamics and electrohydrodynamics in fluid dynamics; for MHD generators, see 52.75.Fk; see also 95.30.Qd Magnetohydrodynamics and plasmas in astrophysics)
• 52.80.Pi: High-frequency and RF discharges

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 121
• Issue: 3
• Pages: 611-613

Dates

published

2012-03

received

2011-09-05

Contributors

author

J. Petit

• Lambda Laboratory, 8 Blvd. F. Buisson, 17300 Rochefort, France

author

J. Dore

• Lambda Laboratory, 8 Blvd. F. Buisson, 17300 Rochefort, France

References

• 1. J.P. Petit, M. Viton, Compt. Rend. Acad. Sci. Paris 284, 167 (1977)
• 2. J.P. Petit, Compt. Rend. Acad. Sci. Paris 281, 157 (1975)
• 3. J.P. Petit, J. Geffray, Acta Phys. Pol. A 115, 1162 (2009) and Proc. 2nd Euro-Asian Pulsed Power Conf. EAPPC, Vilnius (Lithuania), 2008
• 4. J.P. Petit, J. Geffray, Acta Phys. Pol. A 115, 1170 (2009) and Proc. 2nd Euro-Asian Pulsed Power Conf. EAPPC, Vilnius (Lithuania), 2008
• 5. J.P. Petit, J. Geffray, F. David, in: Proc. 16th Int. Space Place and Hypersonic Systems and Technologies Conf., Bremen (Germany), 2009
• 6. J.P. Petit, B. Lebrun, in: 9th Int. Conf. on MHD Electrical Power Generation, Tsukuba (Japan), Proc. III. Part 14. E - MHD Flow, 1986, p. 1359
• 7. B. Lebrun, Ph.D. Eng. Thesis; J. Mech., France 1987
• 8. J.P. Petit, B. Lebrun, Europ. J. Mech. B/Fluids 8, 163 (1989)
• 9. J.P. Petit, B. Lebrun, Europ. J. Mech. B/Fluids 8, 307 (1989)
• 10. J.P. Petit, B. Lebrun, in: 11th Int. Conf. on MHD Electrical Power Generation, Beijing (China), Proc. III, Part 9 - Fluid dynamics, 1992, p. 748
• 11. J.P. Petit, in: 8th Int. Conf. on MHD Electrical Power Generation, Moscow (Russia), 1983

Identifiers

DOI

10.12693/APhysPolA.121.611