1. Chapter 4 Hydrodynamics 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
プラズマ物理学（第４回）
2017/4/27
Lagrangian and Euler Description of time evolution of fluid
理学部物理（３回生）平成１４年度

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

11. 3, Rankin-Hugoniot Relation 1. Nonlinearity
Shock Wave
3, Rankin-Hugoniot Relation
1. Nonlinearity
P0, V0
P1, V1
2. Shock Waves

12. Shock Waves by High Velocity

13. Shock
Tube
Experiment

15. Deflagration Wave

16. Chemical Deflagration

17. P-V Diagram of Laser Plasma

18. Simulation Example
High-Gain Implosion
ILESTA-code

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

21. Photon and Ablation Pressures

22. 1020 difference t 4.4 Blast Wave Laser BW Supernova BW
Self-similar Solution
2/5
R = t
1020 difference

29. Normalized Sedov-Taylor Self-Similar Solution

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

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

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

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

39. 4.5 Supernova Remnants (SNRs)
SN1987A

40. Supernova Explosion

41. Tyco SNR

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

43. 4.6 Young Stellar Jets and Bow Shocks

51. Experiment
Rage(LANL)
PETRA(AWE)
CALE(LLNL)
Simulations(2D)