We perform numerical simulations for the Richtmyer-Meshkov instability by employing an adaptive vortex method, and we present the late-time nonlinear evolution of the unstable interface. The adaptive vortex method takes much longer times than previous vortex simulations and gives results for the highly distorted interfaces in fine resolutions. For a small density jump, only the inner core of the interface is distorted on a small scale, yielding a secondary instability, but the interface maintains a global structure of the uniform roll-up. For a moderate density jump, the interface has stronger distortions on the roll-up overall and develops to a more complex structure. We also compare the numerical results with solutions of theoretical models and examine disagreements between the theoretical models for the Richtmyer-Meshkov instability. The numerical results are in good agreement with a potential source-flow model and show convergence of the bubble curvature to a constant limit.
R. D. Richtmyer, Commun. Pure Appl. Math. 13, 297(1960).
미소장
2
L. Rayleigh, Scientific Papers Vol. II (Cambridge University Press, Cambridge, England, 1900).
미소장
3
J. D. Lindl, P. Amendt, R. L. Berger, S. G. Glendinning, S. H. Glenzer, S. W. Haan, R. L. Kauffman, O. L. Landen and L. J. Suter, Phys. Plasmas 11, 339 (2004).
미소장
4
S. Atzeni and J. Meyer-ter-Vehn, The Physics of Inertial Fusion (Oxford University Press, New York, USA, 2004).
미소장
5
D. Sharp, Physica D 12, 3 (1984).
미소장
6
D. Layzer, Astrophys. J. 122, 1 (1955).
미소장
7
V. N. Goncharov, Phys. Rev. Lett. 88, 134502 (2002).
미소장
8
S-I. Sohn, Phys. Rev. E 70, 045301 (2004).
미소장
9
S-I. Sohn, Phys. Rev. E 78, 017302 (2008).
미소장
10
S. I. Abarzhi, Phys. Rev. Lett. 81, 337 (1998).
미소장
11
S. I. Abarzhi, K. Nishihara and J. Glimm, Phys. Lett. A 317, 470 (2003).
미소장
12
G. Birkhoff, in Proceedings of Symposia in Applied Mathematics(American Mathematical Society, Providence,1962), Vol. 13, p. 55.
미소장
13
G. R. Baker, D. I. Meiron and S. A. Orszag, Phys. Fluids 23, 1485 (1980).
미소장
14
G. Tryggvason, J. Comput. Phys. 75, 253 (1988).
미소장
15
J. A. Zufiria, Phys. Fluids 31, 3199 (1988).
미소장
16
S-I. Sohn, Phys. Rev. E 69, 036703 (2004).
미소장
17
S-I. Sohn, J. Phys. Soc. Jpn. 80, 084401 (2011).
미소장
18
T. Sakajo and H. Okamoto, J. Phys. Soc. Jpn. 67, 462(1998).
미소장
19
S-C. Kim, J. Korean Phys. Soc. 46, 848 (2005).
미소장
20
S-I. Sohn, D. Yoon and W. Hwang, Phys. Rev. E 82,046711 (2010).
미소장
21
R. Krasny, J. Comput. Phys. 65, 292 (1986).
미소장
22
C-W. Shu, Advanced Numerical Approximation of Nonlinear Hyperbolic Equations, Lecture Notes in Mathematics (Springer-Verlag, Berlin, 1998), Vol. 1697.
미소장
23
R. Wang, H. Feng and R. J. Spiteri, Appl. Math. Comput.196, 433 (2008).
미소장
24
M. Latini, O. Schilling and W. S. Don, Phys. Fluids 19,024104 (2007).
미소장
25
P. Ramaprabhu, G. Dimonte, Y-N. Young, A. C. Calder and B. Fryxell, Phys. Rev. E 74, 066308 (2006).