Definition of time of transition process by means of the modified gomokhronnosti's number on the example of heating of bodies

The approximate model in the concentrated statement describing process of heating of an infinite plate, the cylinder, a sphere, allowing to define the moment of its termination is given. The received results are compared to known exact decisions on the basis of the distributed model. Their high precision at change of criterion of Bio in range of 0,005 - 1000 is shown. For all considered shapes of bodies results are described by means of uniform expression, depending on one variable in the form of similarity number – the modified gomokhronnost.