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We consider the nonstationary 3-D flow of a compressible viscous heat-conducting micropolar fluid in the domain to be the subset of R3$\mathbf{R}^{3}$ bounded with two concentric spheres that present the solid thermo-insulated walls. In the thermodynamical sense the fluid is perfect and polytropic. We assume that the initial density and temperature are bounded from below with a positive constant and that the initial data are sufficiently smooth spherically symmetric functions. The starting problem is transformed into the Lagrangian description on the spatial domain ]0,1[$]0,1[$. In this work we prove that our problem has a generalized solution for any time interval [0,T]$[0,T ]$, T∈R+$T\in\mathbf{R}^{+}$. The proof is based on the local existence theorem and the extension principle.

3-D flow of a compressible viscous micropolar fluid with spherical symmetry: a global existence theorem