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The stochastic piston problem.


ABSTRACT: We obtain analytical solutions for the perturbed shock paths induced by time-varying random motions of a piston moving inside an adiabatic tube of constant area. The variance of the shock location grows quadratically with time for early times and switches to linear growth for longer times. The analytical results are confirmed by stochastic numerical simulations, and deviations for large random piston motions are established.

SUBMITTER: Lin G 

PROVIDER: S-EPMC528754 | biostudies-literature | 2004 Nov

REPOSITORIES: biostudies-literature

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The stochastic piston problem.

Lin G G   Su C H CH   Karniadakis G E GE  

Proceedings of the National Academy of Sciences of the United States of America 20041028 45


We obtain analytical solutions for the perturbed shock paths induced by time-varying random motions of a piston moving inside an adiabatic tube of constant area. The variance of the shock location grows quadratically with time for early times and switches to linear growth for longer times. The analytical results are confirmed by stochastic numerical simulations, and deviations for large random piston motions are established. ...[more]

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