Shock statistics in higher-dimensional Burgers turbulence

Pierre Le Doussal ¹, Alberto Rosso ², Kay Jörg Wiese ¹

Europhysics Letters 96, 1 (2011) 14005

We conjecture the exact shock statistics in the inviscid decaying Burgers equation in D>1 dimensions, with a special class of correlated initial velocities, which reduce to Brownian for D=1. The prediction is based on a field-theory argument, and receives support from our numerical calculations. We find that, along any given direction, shocks sizes and locations are uncorrelated.

• 1. Laboratoire de Physique Théorique de l’ENS (LPTENS),
  CNRS : UMR8549 – Université Paris VI – Pierre et Marie Curie – Ecole Normale Supérieure de Paris – ENS Paris
• 2. Laboratoire de Physique Théorique et Modèles Statistiques (LPTMS),
  CNRS : UMR8626 – Université Paris XI – Paris Sud