Hydrocode validation project - I. Mark Price. 4 th November 2008. What is the “validation project”?. Concerted effort to validate various hydrocodes (Autodyn, iSALE, Zeus, etc.) against each other and against experimental data. Participants: "Elisabetta Pierazzo" [email protected]
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4th November 2008.
Originally developed in the ‘50s and ‘60s to model hydrodynamic fluid flow through pipes, ballistic impacts, effects of explosions etc.
Can be (crudely) subdivided into three main types.
Example: Crater diameter formed by a 12 µm glass sphere impacting aluminium at 6.1 km/sec.
Experimental result = 51.6 µm ± ~10 µm
Autodyn result (so far!) = 54.3 µm ± 3 µm (say, ±10%)
Conclusion: Choice of solver combination doesaffect answer, but within experimental data spread…so far…
[Q: Is the 10% variation model independent?]