Landau–Hopf theory of turbulence

In physics, the Landau-Hopf theory of turbulence, named for Lev Landau and Eberhard Hopf, was until the mid 1970s the accepted theory of how a fluid flow becomes turbulent. The theory says that as a fluid flows faster, it develops more and more Fourier modes. At first a few modes dominate, but under stronger forcing the modes become power-law distributed, as in Kolmogorov's theory of turbulence.

References

• Landau, L. D. (1944). "К проблеме турбулентности [On the problem of turbulence]". Doklady Akademii Nauk SSSR 44: 339–342. 
• Hopf, E. (1948). "A mathematical example displaying the features of turbulence". Communications on Pure and Applied Mathematics 1: 303–322. doi:10.1002/cpa.3160010401.