Study of MHD Effects in the High-Enthalpy Shock Tunnel Göttingen (HEG) Using a 30 T-Pulsed Magnet System

  • J. Martinez SchrammEmail author
  • K. Hannemann
Conference paper


The interaction between high-enthalpy partially ionized gas flows and magnetic fields, mostly called magnetohydrodynamics (MHD), is regarded as a potential way to manipulate flows. One example is the wall heat-flux mitigation during spacecraft re-entry or entry into an atmosphere. However, the theoretical background and the practical application are still discussed controversially. One way to enhance the knowledge in this field is to utilize advanced computational fluid dynamics (CFD) tools in combination with experimental studies providing suitable validation data. The German Aerospace Center, DLR, has assembled an experiment for the high-enthalpy shock tunnel Göttingen (HEG) to provide data for verification and validation of numerical predictions. A 30 T-pulsed magnet, driven by a 100 kJ capacitor bank, generates the required field. This paper outlines the experimental requirements to obtain magnetohydrodynamic effects in high-enthalpy partially ionized gas flows and the final realization of the experiment. Selected results of experiments using flow stagnation enthalpies of 22 MJ/kg are presented.


  1. 1.
    E. Resler, W. Sears, The prospects for magneto aerodynamics. J. Aeronaut. Sci. 4, 235–245 (1958)MathSciNetzbMATHGoogle Scholar
  2. 2.
    J. Poggie, Numerical modeling of electro-magnetic control techniques for high-speed flows, in Introduction to Magneto-Fluid-Dynamics for Aerospace Applications, VKI Lecture Series 2004–01, ed. by O. Chazot, M. Huber, (von Karman Institute, Rhode Saint Genese, 2004), pp. 1–21Google Scholar
  3. 3.
    R.J. Stalker, A study of the free-piston shock tunnel. AIAA J. 5(12) (1967)Google Scholar
  4. 4.
    K. Hannemann, J. Martinez Schramm, S. Karl, Recent extensions to the high enthalpy shock tunnel Göttingen (HEG), in Proceedings of the 2nd International ARA Days “Ten Years after ARD”, Arcachon, France, 21–23 October 2008Google Scholar
  5. 5.
    K. Hannemann, R. Krek, G. Eitelberg, Latest calibration results of the HEG contoured nozzle, in Proceedings of the 20th International Symposium on Shock Waves, Pasadena, CA, USA, July 1995, ed. by B. Sturtevant, J. E. Sheperd, H. G. Hornung (Eds), (World Scientific, 1996), pp. 1575–1580Google Scholar
  6. 6.
    K. Hannemann, J. Martinez Schramm, High enthalpy, high pressure short duration testing of hypersonic flows, in Springer Handbook of Experimental Fluid Mechanics, ed. by C. Tropea, J. Foss, A. Yarin (Eds), (Springer, Berlin Heidelberg, 2007), pp. 1081–1125Google Scholar
  7. 7.
    K. Hannemann, High enthalpy flows in the HEG shock tunnel: experiment and numerical rebuilding, 41st AIAA aerospace sciences meeting and exhibit, Reno, Nevada, 6–9 January 2003Google Scholar
  8. 8.
    F. Herlach, Pulsed magnets for strong and ultrastrong fields. IEEE Trans. Magn. 32(4), 2438–2443 (1996)CrossRefGoogle Scholar
  9. 9.
    N. Miura, F. Herlach, Pulsed strong and ultra-strong magnetic fields, Technical Report of ISSP Ser. A, No. 1471, The Institute for Solid State Physics, University of Tokio, Roppongi, Minkato-Ku, Tokyo 106, Japan (1984)Google Scholar
  10. 10.
    J. Freudenberger, N. Kozlova, A. Gaganov, L. Schultz, H. Witte, H. Jones, Magnetoresistance up to 50 T of highly strengthened CuAg conductors for pulsed high field magnets. Cryogenics 46, 724–729 (2006)CrossRefGoogle Scholar
  11. 11.
    A. Gülhan, B. Esser, U. Koch, F. Siebe, J. Riehmer, D. Giordano, D. Konigorski, Experimental verification of heat-flux mitigation by electromagnetic fields in partially-ionized-argon flows. J. Spacecr. Rocket. 46(2), 274–283 (2009)CrossRefGoogle Scholar
  12. 12.
    J.S. Shang, Shared knowledge in computational fluid dynamics, electromagnetics, and magneto-aerodynamics. Prog. Aerosp. Sci. 38(6–7), 449–467 (2002)CrossRefGoogle Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  1. 1.German Aerospace Center, DLR, Institute for Aerodynamics and Flow TechnologySpacecraft DepartmentGöttingenGermany

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