This repository contains python based LES solver (both finite diffrence and spectral) of two-dimensional decaying turbulence also called Kraichnan turbulence.
Result(Vorticity and Energy spectrum plot at different times):
Details of solver can be found at:
San, Omer, and Anne E. Staples. "High-order methods for decaying two-dimensional homogeneous isotropic turbulence." Computers & Fluids 63 (2012): 105-127.