Turbine blade cooling
Hi all!
I have a question that I thought I might be able to get a decent answer on from here.
What's the difference between convection cooling and impingement cooling in a turbine blade? I've been trying to figure it out from googling a little but I haven't found a good description yet. It's stated in the learning objectives for ATPL students but not covered in the Oxford material which I find a bit odd being a quite important part in keeping turbine temperatures down.
Could anyone on here explain these details to me please?
Regards/ LnS