Skip to main content
Log in

Similarity solutions in space dependent extended kinetic theory

  • Brief Reports
  • Published:
Zeitschrift für angewandte Mathematik und Physik ZAMP Aims and scope Submit manuscript

Summary

An exact analytical solution to a simple problem of extended kinetic theory for a spatially inhomogeneous binary gas mixture is determined in this paper by resorting to Lie group theoretical methods. It is shown that there are cases in which the nonlinear evolution equations for the densities allow transformation groups of infinite order, where the corresponding similarity solution actually represents the general solution to the problem. Results are then briefly commented on.

Zusammenfassung

In dieser Abhandlung wird eine exakte analytische Lösung für ein einfaches Problem aus der erweiterten kinetischen Theorie räumlich inhomogener binärer Gasmischungen angegeben. Es wird gezeigt, daß die nichtlinearen Evolutionsgleichungen für die Dichten in bestimmten Fällen Lie-Gruppen von unendlicher Ordnung zulassen. Die zugehörigen Similarity-Lösungen stellen dann allgemeine Lösungen des zugrundeliegenden Problems dar. Die Ergebnisse werden kurz erläutert.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. A. A. Nikol'skii, Sov. Phys. Dokl.8, 633 (1964). H. Cornille, J. Phys. A: Math. Gen.20, 1973 (1987).

    Google Scholar 

  2. G. W. Bluman, J. D. Cole,Similarity methods for differential equations, Springer, New York 1974.

    Google Scholar 

  3. G. Dukek, T. F. Nonnenmacher, Physica A135, 167 (1985).

    Google Scholar 

  4. G. Spiga, T. F. Nonnenmacher, V. C. Boffi, Physica A131, 431 (1985). V. C. Boffi, V. Franceschini, G. Spiga, Phys. Fluids28, 3232 (1985).

    Google Scholar 

  5. V. C. Boffi, G. Spiga,Spatially inhomogeneous nonlinear dynamics of a gas mixture, to be published.

Download references

Author information

Authors and Affiliations

Authors

Additional information

On leave from: Institute of Mathematical Physics, University of Ulm, Oberer Eselsberg, 7900 Ulm, F.R.G.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Dukek, G., Spiga, G. Similarity solutions in space dependent extended kinetic theory. Z. angew. Math. Phys. 39, 924–930 (1988). https://doi.org/10.1007/BF00945128

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00945128

Keywords

Navigation