Is dislocation flow turbulent in deformed crystals?
  Intriguing analogies were found between a model of plastic deformation in crystals and turbulence in fluids. A study of this model provides remarkable explanations of known experiments and predicts fractal dislocation pattern formation. Further, the challenges encountered resemble those in turbulence, which is exemplified in a comparison with the Rayleigh-Taylor instability. 
Woosong Choi, Yong S. Chen, Stefanos Papanikolaou, James P. Sethna
physics.comp-ph cond-mat.mes-hall cond-mat.stat-mech physics.flu-dyn