problem in transient termal analysis

Hello,

    i have a problem when try to get results in transient termal analysis. to try to solve it i made a simple model and try again but faced with same problem. the problem is when get results the model is cold ( i mean it don't be cold like this)

next i cut the model and turned off the convection and the heat power. left only the initial temperature and ran this study and results is this: i noticed that the model is cold in the core.

perhaps, the problem with this version of solidworks ( i use SW 2015 x 64 SP 1.1) or with anything else.

if you know how fix this problem answer for it, please!

thank you!

SolidworksSimulation