The 3-dimensional domain with strong energy dissipation (above a certa
in threshold) in isotropic turbulence is displayed using a 3D generali
zed binomial Cantor set model, which is in itself a multifractal. This
artificially made display simulates the corresponding domain of a rea
lization of isotropic turbulence by direct numerical simulation so wel
l that we may be convinced that all dissipative regions in real turbul
ence form the multifractal designated by this model, and that the doma
in surface has a fractal dimension corresponding to the threshold valu
e.