Shock Induced Symmetric Compression in a Spherical Target

• 作者: Labakanta Mandal Manoranjan Khan R. Roychoudhury Sourav Roy
• 来源期刊: 现代物理(英文)
• 学科: 数学
• 关键词: Two Fluid Interface INSTABILITY Shock IMPINGEMENT ADIABATIC SYMMETRIC Compression IMPLOSION
• 年，卷（期）: 2015,（13）
• 页码范围: 1769-1775
• 页数: 7页
• 分类号: O1

摘要

Shock induced symmetric compression has been studied in a spherical target. The shock induced interfacial radius will shrink and would reach a minimum point during implosion situation. However, after implosion the plasma tries to expand in blow off/explosion situation and as a result the interfacial radius will increase. Effects of plasma parameters like density and temperature have been studied numerically. It is seen that the density increases many times due to the mass conservation in imploding situation of a compressible shell like ICF. However, temperature will change rapidly due to change of inner density and so would be the pressure of compressible fluid following adiabatic law. Our analytical results agree qualitatively with those of simulation results in spherical geometry and also experimental observations conducted in cylindrical container.