Steady-state planar ablative flow
This paper discusses the theory of ablative acceleration. Since this problem can be solved in either one or two dimensions by fluid simulation, our principal object is not to find detailed solutions which can be compared precisely with experiment. Rather it is to shed light on the physics of ablative acceleration and to derive simple scaling laws. We do derive simple scaling laws for ablation pressure, blow-off velocity and separation between critical and ablation surfaces. These scaling laws depend only on the material, laser wavelength and absorbed laser irradiance. The key to deriving these simple scaling laws is not really in solving the steady state fluid equations, but rather in selecting which of many possible solutions describe the ablative acceleration.
- Research Organization:
- Naval Research Lab., Washington, DC (USA)
- DOE Contract Number:
- AI08-79DP40092
- OSTI ID:
- 5968233
- Report Number(s):
- NRL-MR-4644; ON: DE82003524; TRN: 82-001502
- Country of Publication:
- United States
- Language:
- English
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