Re: Sabre engine - pressure ratio issues

Ian Parker <ianparker2@xxxxxxxxx> wrote:

:
:I feel too that in the development proram a great deal of reliance has
:to be placed on simulation. This means that reliable models of
:combustion in all conditions is needed. I assume that is what ESTEC is
:trying to do. It is just too expensive to keep on building actual
:aircraft and tweaking them
:

You also can't build good simulations for something that you don't
have measurements for. So, at the very least, they will need
hypersonic wind tunnel data on various designs in order to build a
simulation such as you propose.

That's not cheap, either.


--
"Ignorance is preferable to error, and he is less remote from the
truth who believes nothing than he who believes what is wrong."
-- Thomas Jefferson
.