Study of Nonlinear Evolution of Single-Mode and Two-Bubble Interaction under Richtmyer-Meshkov Instability

O. Sadot; L. Erez; U. Alon; D. Oron; L. A. Levin; G. Erez; G. Ben-Dor; D. Shvarts

doi:10.1103/PhysRevLett.80.1654

Study of Nonlinear Evolution of Single-Mode and Two-Bubble Interaction under Richtmyer-Meshkov Instability

O. Sadot, L. Erez, U. Alon, D. Oron, L. A. Levin, G. Erez, G. Ben-Dor, and D. Shvarts

Phys. Rev. Lett. 80, 1654 – Published 23 February 1998

Abstract

Shock-tube experiments were performed in order to verify recently developed theoretical models for the evolution of the shock-wave induced Richtmyer-Meshkov instability [Phys. Rev. Lett. 74, 534 (1995)]. Single-mode bubble and spike evolution and two-bubble interaction in both early and late nonlinear stages were investigated in a $M \approx 1.3$ $Air - to - {SF}_{6}$ shock-tube experiment. Experimental results for the single-mode and two-bubble cases, showing distinct bubble and spike evolution, were found to be in very good agreement with the theoretical model prediction as well as numerical simulations, verifying the key elements of the bubble-merger model used for the prediction of the multimode bubble and spike front evolution.

Received 1 October 1997

DOI:https://doi.org/10.1103/PhysRevLett.80.1654

Authors & Affiliations

O. Sadot¹, L. Erez¹, U. Alon^3,4, D. Oron^1,3, L. A. Levin³, G. Erez¹, G. Ben-Dor², and D. Shvarts³

¹Physics Department, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
²Mechanical Engineering Department, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
³Physics Department, Nuclear Research Center-Negev, Beer Sheva 84190, Israel
⁴Physics Department, Princeton University, Princeton, New Jersey 08540