Dirichlet`s task is solved for unstable of hot liquid stream moving into radial-divergency canal. Solution was fined by consistent application laplace's conformation and furie`s sinus-conformation. Is written equation heatchange for moving of liquid in cylindrical coordinates. Is taken in consideration the canal simmetration for coordinate . Heatexchange only by convection in direction of radial coordinate and by heatconduction along axal is taken in consideration. In process of solution was find time's parameter, value of which separate unstationary and stationary conditions of heatconduction. In result solutions for calculation unstable and stationary temperature field and correlated with them local heat streams on the walls of canal was obtained. The stationary solution is full identifical by solution which were obtained in [5] for stationary of heatchange into radial-divergency canal.
температурное поле, удельный тепловой поток, радиально-расходящийся канал, граничные условия, собственные функции, преобразование Лапласа, преобразование Фурье, temperature field, specific stream of heat, radial-divergency canal, boundary condition, characteristic function, laplace's conformation, conformation of Furie
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