[Closed] beta3 of CTV-ATV

[Pagir]

no matter a écrit:

Description supplements:
[...]

At home it seems to be cleared if I remove those b***ard ships.
I have randomly tested other ground bases that own one or more meshes on the ground but no ctd at all.

And you'll get back to Europe?

It's strange, since it never happened with CTV_SPLASHDOWN ...

I'll check too, but I can't before tomorrow...

Pagir

[no matter]

OUCH!!

[siriusfett]

no matter a écrit:

Description supplements:
During a reentry, have 45 km of alltitude, if I pass in considering outside for looked at the shield, crash orbiter.
Idem, if I remain in considering outside all the descent.

Sirius, can you try to remove the two naval ships from the base config (hope you know how to do this), the file is
located here: config/earth/base/ARD_splashdown.cfg. It will be a great help on identifying what causes the ctd.

At home it seems to be cleared if I remove those *kind* ships.
I have randomly tested other ground bases that own one or more meshes on the ground but no ctd at all.

I made the test No matter, more CTD after the suppression of the ships of the file cfg.

[picto]

YES !!!

[Pagir]

CTV BUG

Short description:

Smoke appears and shield becomes red at too high temperature


Severity

well, depends, light, I guess


Complete  description

From low orbit, I'm easily able to make a reentry without and flamme or smoke when I use the trim "wisely"


Reproduce bug

Make a reentry normaly from low orbit, but keep the vertical drop at the lowest possible (don't allow the ship to climb,
however...)


Miscallenous

Smoke, flamme and reddish shield appear at about HeatQ 50 000. I think 30 000 could be visually better.

[Pagir]

I'm trying to find info about HeatQ.

Read about ARD:

http://spaceflight.estec.esa.nl/print.cfm?PageID=91

During reentry into the atmosphere, ARD's heatshield will be exposed to temperatures ranging up to 2000
degrees C and a heat flux as high as 1000 kW/m2, resulting from the ionisation of the surrounding atmosphere
under the aerodynamic pressure of the hypersonic vehicle. On ARD's conical area, the temperatures could reach 1000
degrees C, with a heat flux of 90-125 kW/m2. Inside, the temperature will not rise above 40 degrees C.

1000kw/m2??? When I see 50 000 on the CTV, are you using the right scale?

Pagir

See also http://adsabs.harvard.edu/full/2003ESASP.521..259S

[no matter]

The formula comes from the API guide, I think I have done a mistake when converting. But it match with the data
given by the reentry stream, it might be zeros in excess. Disappointed

ARD is smaller and lighter than the CTV but....

Smoke, flamme and reddish shield appear at about HeatQ 50 000. I think 30 000 could be visually better.

If I do that, the reentry stream (the default one, reddish one) will be desynchronised with smoke and shield effect, I
can't modify that default stream. I will do some tests but think that apparition and disparition are linked too.
 
EDIT: That what made me ask you, some days ago, if the lift was not too high?



Message modifié ( 23-09-2007 16:40 )

[no matter]

siriusfett a écrit:
I made the test No matter, more CTD after the suppression of the ships of the file cfg.

Errr, sorry... more or no more? Is there more ctd after the suppression?

I think the bug is cleared at home (I hope,  can't be sure...I was not able to reproduce exactly the same ctd but I
have fixed a problem between the ships and CTV)



Message modifié ( 23-09-2007 16:51 )

[Pagir]

no matter a écrit:
[...]
 
EDIT: That what made me ask you, some days ago, if the lift was not too high?

Yep, it seems we maybe have to modify the lift... too bad...
Anyway, if you can't change the smoke apparition... I'll test for lift modification.

Pagir

[siriusfett]

no matter a écrit:

siriusfett a écrit:
I made the test No matter, more CTD after the suppression of the ships of the file cfg.

Errr, sorry... more or no more? Is there more ctd after the suppression?

I think the bug is cleared at home (I hope,  can't be sure...I was not able to reproduce exactly the same ctd but I
have fixed a problem between the ships and CTV)

Plus de Ctd après suppression des navires dans le fichier cfg.

[no matter]

Plus de Ctd après suppression des navires dans le fichier cfg.

Ok, good to hear! That was to be sure

[no matter]

NO MORE POST HERE PLEASE, BETA4 WILL START AS SOON AS THE NEW ARCHIVE WILL BE UPLOADED, THANKS


Dan can you close the topic please



Message modifié ( 23-09-2007 19:20 )