Abstract: The flow field of double concentric strong swirling jets in a cylinder combustion and the distribution of its turbulent parameters were simulated. During the computation, work was done on first step for the adjust of the empirical coefficient C_μ in the hypothesis of Kolmogorov-Prandtl eddy viscosity. C_μ is considered to be various for various flow fields and for different points in a same one, and to be non-isotropic. Compared with experimental results the mathematical model and the numerical methods used were practicable for the simulation of axisymmetric strong swirling jets.