Can't dodge dragon's breath

I know this has been asked before but I just can't get the hang of dodging a dragon's breath. Everyone says that Whirlwind sprint or stealth roll should do the trick but every time I try it, the dragon is "locked on" to me and it's body actually rotats with my move, making it impossible to move out of fire. So far the only reliable way I've found is abusing LoS or bashing/unrelenting force.