Skip to main content Accessibility help
×
Home

Effects of microstructure on shock propagation in foams

  • F. PHILIPPE (a1), B. CANAUD (a1), X. FORTIN (a1), F. GARAUDE (a1) and H. JOURDREN (a2)...

Abstract

Foams are an important component of various inertial confinement fusion target schemes. The propagation of shock waves in foams is also an important issue for many other laser experiments (e.g., laboratory astrophysics experiments). The usual approach is to assume that the foam can be considered as a homogeneous mixture. Taking into account the effects of foam heterogeneity leads to increased shock velocity and reduced compressibility. Evidence of this effect is obtained using two-dimensional adaptive mesh refinement Eulerian numerical simulations. Nonetheless, for the very low density foams filled with DT ice used in recent direct drive target designs, the homogeneous mixture model provides adequate shock timing, density, and pressure profiles.

Copyright

Corresponding author

Address correspondence and reprint requests to: F. Philippe, Département de Physique Théorique et Appliquée, CEA/DAM Ile-de-France, BP12, F-91680 Bruyères-le-Châtel, France. E-mail: franck.philippe@cea.fr

References

Hide All

REFERENCES

Amendt, P., Colvin, J.D., Tipton, R.E., Hinkel, D.E., Edwards, M.J., Landen, O.L., Ramshaw, J.D., Suter, L.J., Varnum, W.S. & Watt, R.G. (2002). Phys. Plasmas 9, 2221.
Hazak, G., Velikovich, A.L., Gardner, J.H. & Dahlburg, J.P. (1998). Phys. Plasmas 5, 4357.
Jacobs, J.W. (1993). Phys. Fluids A 5, 2239.
Kotelnikov, A.D. & Montgomery, D.C. (1998). Phys. Fluids 10, 2037.
Metzler, N., Velikovich, A.L. & Gardner, J.H. (2002). Phys. Plasmas 9, 5050.
Remington, B.A., Drake, R.P., Takabe, H. & Arnett, D. (2000). Phys. Plasmas 7, 1641.
Sacks, R.A. & Darling, D.H. (1987). Nucl. Fusion 27, 447.
Tomkins, C., Prestridge, K., Rightley, P., Marr-Lyon, M., Vorobieff, P. & Benjamin (2003). Phys. Fluids 15, 986.

Keywords

Effects of microstructure on shock propagation in foams

  • F. PHILIPPE (a1), B. CANAUD (a1), X. FORTIN (a1), F. GARAUDE (a1) and H. JOURDREN (a2)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed