[Rocketworkbench] RE: Cpropepshell interfase 1.01

[<ghe...@ci...>]

Dear Hans Olaf,

Finally we got the complete result in the output text window. We =
reinstalled
the files and solved the problem we had with maximizing.
With reference to the second area ratio input option this was also
clarified: the obtained results, in spite of the reading, correspond in =
fact
to  subsonic exit to throat area, so that we have really both distinct =
input
area options, which is a very good thing. I assume the corresponding =
input
reading can easyly be corrected in future versions.
Sometimes, when we return from the text to the input window and simply
change perfomance conditions with the same ingredients and run, we get, =
we
don't know really why, immediately after "please wait",  the text =
window
with the results of the previous calculations, and this may be, has  =
added
some confusion regarding the  results with area ratio inputs.
Since the interface does not allow the input of only one component, in =
the
case of monopropellants, like hydracine, we succeeded in splitting the =
same
component in two parts and amounts. Again thank you for your prompt =
reply
and your help.
Regards,

Gunterio.=20


Gunterio,

I will need more information before I can solve any problems:

The Cpropepshell works in the following way:
1) Pressing the "run" button creates a file "temporary.pro" as cpropep
input.
2) Cpropepshell asks Windows to run the cpropep with the command line
parameters
required for specifying temporary.pro as input and standard out =
redirected
to a
file named "temporary.out".
3) Cpropepshell waits until Windows signals that the cpropep process =
has
terminated.
4) The temporary.out is displayed in a text window.

This means that the complete result *should* show up in the text =
window. If
this
does not happend, then, please check that the temporary.out holds the
complete
information. If windows signals that the cpropep process has terminated
before
flushing the temporary.out strange things could happend.

OTOH, You mention that it "helps" (?) to print or save - does this make =
the
missing texts show up?

Hans


"Heineken, Gunterio Germ=E1n" wrote:

> Dear Olaf,
>
> In the meantime I checked the cpropepshell 1.01 interfase and it =
works
> pretty well for the selected exit conditions. I had only a small =
trouble
> with the  output data, which did not appear  fully displayed, but =
this can
> be solved by  saving the results on the Note Block or by printing. By =
the
> way, would it not be more meaningful to have as additional input =
option,
for
> exit conditions, the subsonic area ratio, as cpropep-web allows, =
instead
of
> two supersonic area ratios giving both the same results?
> Again thank you for your contribution which I appreciate very much =
and
which
> will be, no doubt, very useful for practical use and educational =
training.
> Best regards and hoping to hear from you and our colleagues from the
> Rocketworkbench,
>
> Gunterio Heineken
> Buenos Aires, Argentina.