  A $p$-adic hydrodynamic type equation with two integrals of motion is
proposed. It can be considered as a model cascade equation for energy
dissipation in fully developed turbulence. Some of special cases of the
proposed equation are detailed and it is shown that for a specific choice of
parametrs they have stationary solutions that correspond to the 2/3
Kolmogorov-Obukhov law. Possible further studies of the proposed model are
discussed.
