Sage Journals: Discover world-class research

Abstract

Phenomena of interelectrode breakdown in the supersonic Faraday type MHD generator are studied through time-dependent two-dimensional numerical analyses. The whole area of a single electrode-pair is analyzed. (1) No inter-electrode breakdown is induced, when the channel is operated under the design condition where the averaged value of current density in the Faraday direction is 0.96 A/cm² with a Hall field of -30.4 V/cm. (2) The intercathode breakdown alone is induced, whereas no breakdown occurs at the anode when the average value of current density in the Faraday direction is 1.91 A/cm² with a Hall field of -60.7 V/cm. (3) Boundary layer separation is induced by the strong axial current between adjacent cathodes.

Get full access to this article

View all access options for this article.

References

Oliver

D.A.

, in: Proc. 6th Int. Conf. MHD (1975) p. 329.

Unkel

., in: Proc. 6th Int. Conf. MHD (1975) p. 345.

Zalkind

V.I.

., in: Proc. 7th Int. Conf. MHD (1980) p. 766.

Hermina

and Kruger

C.H.

, in: Proc. 19th Symp. Eng. Aspects MHD 10(3) (1981).

Zalkind

V.I.

., in: Proc. 8th Int. Conf. MHD D.4 (1983).

Rosa

R.J.

, in: Proc. 8th Int. Conf. MHD D.6 (1983).

Okazaki

., in: Proc. 8th Int. Conf. MHD D.7 (1983).

Ohtake

., in: Proc. 9th Int. Conf. MHD 7.5 (1986).

Hara

., in: Proc. 9th Int. Conf. MHD 7.6 (1986).

10.

Petty

S.W.

, in: Proc. 9th Int. Conf. MHD 7.8 (1986).

11.

Inoue

., in: Proc. 10th Int. Conf. MHD IV.10 (1989).

12.

Ishikawa

, in: AIAA 21st Fluid Dynamics et al. Conference AIAA Paper 90-1610 (1990).

13.

Buznikov

A.E.

and Reshetov

E.P.

, in: Proc. 11th Int. Conf. MHD 1 (1992) p. 159.

14.

Bityurin

V.A.

., in: Proc. 11th Int. Conf. MHD 1 (1992) p. 163.

15.

Bocharov

A.N.

and Bityurin

V.A.

, in: Proc. 11th Int. Conf. MHD (1992) p. 203.

16.

Ishikawa

and Umoto

, Energy Conversion and Management 25(4) (1985) 399.

17.

Cline

M.C.

, VNAP: A computer program for computation of two-dimensional, time-dependent compressible, viscous, internal flow, Los Alamos Scientific Laboratory Report, LA-7326 (1978).

18.

Baldwin

B.S.

and Lomax

, Thin layer approximation and algebraic model for separated turbulent flows, AIAA Paper AIAA-78-257 (1978).

19.

MacCormack

R.W.

, in: AIAA hypervelocity Impact Conf., AIAA Paper No. 69-354 (1969).

20.

Ishikawa

, in: Proc. 20th Symp. Eng. Aspects MHD 7.3 (1982).

21.

Ishikawa

., J. Propulsion and Power 4(2) (1988) 180.

22.

Technical report of the investigation committee of MHD generator plant in Japan (1973) (in Japanese).

23.

Ishikawa

, Unsteady phenomena in high-interaction MHD generators, Tech. Report No. 192 (Int. Atomic Energy, Kyoto Univ., 1982).

Numerical Analyses of Fast Inter-Cathode Break-Down in Open-Cycle Mhd Generator

Abstract

Get full access to this article

References