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HGDT Guide
Posted: Thu Nov 23, 2023 9:15 pm
by Nate55123
Does anyone have a access to the documentation for HGDT? Or can someone help me understand the software? The archive for GGDT works fine and I've used that plenty, but I have not used HGDT and I don't know what all the inputs and outputs are. I tried looking at the archive with no luck.
Thanks!
Re: HGDT Guide
Posted: Tue Nov 28, 2023 12:35 pm
by jackssmirkingrevenge
Do you have any specific questions? What are you trying to model exactly?
Re: HGDT Guide
Posted: Wed Nov 29, 2023 1:21 am
by Nate55123
jackssmirkingrevenge wrote: ↑Tue Nov 28, 2023 12:35 pm
Do you have any specific questions? What are you trying to model exactly?
I found most of what I needed after digging through the forum. I'm still not entirely sure about the mix(Nx) input? What exactly is that? And does HGDT use a set ratio of fuel to air?
Thanks!
Re: HGDT Guide
Posted: Wed Nov 29, 2023 3:29 pm
by jackssmirkingrevenge
Nate55123 wrote: ↑Wed Nov 29, 2023 1:21 am
I'm still not entirely sure about the mix(Nx) input
It's shorthand for the pressure before firing.
If your mix of fuel and air is pressurized to 150 psi, then that's approximately 10 times atmospheric pressure so your input value should be 10.
For an unpressurized basic combustion cannon this value should be 1.
And does HGDT use a set ratio of fuel to air?
I believe a stoichiometric mix ratio is assumed depending on the chosen fuel.
Re: HGDT Guide
Posted: Thu Nov 30, 2023 12:46 am
by Nate55123
jackssmirkingrevenge wrote: ↑Wed Nov 29, 2023 3:29 pm
Nate55123 wrote: ↑Wed Nov 29, 2023 1:21 am
I'm still not entirely sure about the mix(Nx) input
It's shorthand for the pressure before firing.
If your mix of fuel and air is pressurized to 150 psi, then that's approximately 10 times atmospheric pressure so your input value should be 10.
For an unpressurized basic combustion cannon this value should be 1.
And does HGDT use a set ratio of fuel to air?
I believe a stoichiometric mix ratio is assumed depending on the chosen fuel.
Perfect. Thank you!
Re: HGDT Guide
Posted: Mon Dec 11, 2023 9:29 pm
by D_Hall
jackssmirkingrevenge wrote: ↑Wed Nov 29, 2023 3:29 pm
I believe a stoichiometric mix ratio is assumed depending on the chosen fuel.
Correct. I am NOT going to loop in PEP or any similar combustion codes!