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Chapter 4 Hydrodynamics of Laser Plasma as Neutral Fluids

Chapter 4 Hydrodynamics of Laser Plasma as Neutral Fluids. 4.1 Laser Solid Interaction. Linear Heat Conduction. c : c onstant. Heat Diffusion (Linear). Heat Wave by Electron or Radiation. Drunken Walk Model. Finite differential Eq. Nonlinear Heat Wave. 4. 2 Plasma as Fluids.

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Chapter 4 Hydrodynamics of Laser Plasma as Neutral Fluids

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  1. Chapter 4Hydrodynamics of Laser Plasma as Neutral Fluids

  2. 4.1 Laser Solid Interaction

  3. Linear Heat Conduction c : constant Heat Diffusion (Linear)

  4. Heat Wave by Electron or Radiation Drunken Walk Model Finite differential Eq. Nonlinear Heat Wave

  5. 4. 2 Plasma as Fluids 1. Equation of Continuity 2. Equation of Motion 3. Equation of State P = P(r,T) 4. Equation of Energy

  6. Lagrangian and Euler Description of time evolution of fluid

  7. Typical EOS of Material from Solid to Plasma States

  8. Sound Wave 1. Linearized Equations 3. Propagation Equation 2. Sound Velocity General Solution r1 = f(x-Vst) + g(x+Vst)

  9. Compressibility of Fluids 4. Bulk Modulus 5. Incompressible Fluids 6. Potential Flow 9

  10. Shock Wave 3, Rankin-Hugoniot Relation 1. Nonlinearity P1, V1 P0, V0 2. Shock Waves

  11. Shock Waves by High Velocity

  12. Shock Tube Experiment

  13. Deflagration Wave

  14. Chemical Deflagration

  15. P-V Diagram of Laser Plasma

  16. Simulation Example High-Gain Implosion ILESTA-code

  17. 4.3 Ablation Physics Ablation Pressure (Mbar) Experimental Data Laser Intensity (W/cm2)

  18. Photon and Ablation Pressures

  19. 4.4 Blast Wave Laser BW Supernova BW Laser Self-similar Solution 2/5 R = t 1020 difference

  20. Normalized Sedov-Taylor Self-Similar Solution

  21. Blast Wave E=109 J TNT 1 ton 100 m 1cm Laser Blast Wave E=100 J

  22. E=1017J H-Bomb 1 Mega Ton TNT

  23. Taylor-Sedov is also called Taylor-Sedov-Neuman Solution von Neuman and ENIAC

  24. E=1044J Supernova Remnant (Cas A)

  25. 4.5 Supernova Remnants (SNRs) SN1987A

  26. Supernova Explosion

  27. Tyco SNR

  28. Young SNRs by Chandra(US X-s) Cas A Kepler Tycho 0.06pc 0.04pc 0.01pc 0.007pc 0.02pc 0.02pc

  29. 4.6Young Stellar Jets and Bow Shocks

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