BMS Other Fighters Mafia (BMSOFM) Journal
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Good News!! Our CFD (Computational Fluid Dynamics) work will be proceeding to “Step-2” (Step-1 was the validation test of known aifoils & conditions (verified by wind tunnel data)! This stage will be the needed infrastructure that was mentioned by drtbkj, and will be the basis by which all the current or future ‘other’ aircraft of BMS will eventually compared against.
Stay tuned, as things will be picking up momentum for what we have all been hoping for with those ‘other planes’ of BMS. Cheers!
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@tgw
Great news
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@tgw
That sounds cool - can you share what that CFD will allow you to do ?
Cheers,
JayB -
Yessir, using CFD (Computational Fluid Dynamics) will allow us to produce pretty accurate Flight Models for ‘the other’ BMS aircraft. Doing this will increase the fidelity factors (immersion and performance) of these aircraft in the simulator.
http://wikipedia.org/wiki/Computational_fluid_dynamics
http://wikipedia.org/wiki/Numerical_methods_in_fluid_mechanics
http://wikipedia.org/wiki/Blade_element_theory
Check out (via your favorite search engine) the likes of the following CFD packages, to get an idea of what we have been doing over the last 6 months or so, to accomplish this task . . . Enjoy!
https://www.altair.com/altair-cfd/
Ansys Fluent
Simcenter STAR-CCM+
Stallion 3D
OpenFOAM
Simcenter FloEFD -
@tgw
Impressive, very BMS-esque to go all in on details like this.
-jb
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@tgw
Dude … What have you done!!!It looks like there is a “BUG” on that pic
Cheers
p.s. what we were talking 'bout … that former AIC analyst
Here you deserve it !! -
@white_fang said in Project Bug and the Other Fighters Mafia:
@tgw
Dude … What have you done!!!It looks like there is a “BUG” on that pic
Cheers
p.s. what we were talking 'bout … that former AIC analyst
Here you deserve it !!You betcha
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“Confirmed”, ‘cha-ching’, good find there Fang (you da man!)! LOL
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Preparing FM data for ‘application’ (Step-3) for a FoM (‘friend of the Mafia’, his equipment is already present in BMS, so this OFM process is staying ‘in-house’, which everyone will be able to enjoy). But good things are coming for ‘the other aircraft’ FM’s for BMS!! Stay tuned . . .
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this project is amazing
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@tgw said in Project Bug and the Other Fighters Mafia:
Yessir, using CFD (Computational Fluid Dynamics) will allow us to produce pretty accurate Flight Models for ‘the other’ BMS aircraft. Doing this will increase the fidelity factors (immersion and performance) of these aircraft in the simulator.
http://wikipedia.org/wiki/Computational_fluid_dynamics
http://wikipedia.org/wiki/Numerical_methods_in_fluid_mechanics
http://wikipedia.org/wiki/Blade_element_theory
Check out (via your favorite search engine) the likes of the following CFD packages, to get an idea of what we have been doing over the last 6 months or so, to accomplish this task . . . Enjoy!
https://www.altair.com/altair-cfd/
Ansys Fluent
Simcenter STAR-CCM+
Stallion 3D
OpenFOAM
Simcenter FloEFDWell… nice, thanks a lot.
And, already said or not this, I (too) just can’t await to get it.
Even better, instead: please count me, if you kindly wish, among the testers. I would like to be of any help for you.With best compliments and regards.
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Wheeee , the days of painting the air (in) tunnels are over , welcome to 21st century!!!
Good work indeed!!
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@white_fang said in Project Bug and the Other Fighters Mafia:
Wheeee , the days of painting the air (in) tunnels are over , welcome to 21st century!!!
Good work indeed!!
You bet, White_Fang! We are very close to flight testing this.
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Good Day, All,
Here’s our Mafia Update for the day, and I’m very happy to be making this one. It’s been posted here and elsewhere that the Mafia has been in a phase of “building the infrastructure” to be able to enhance the BMS Hornet, and from there to the BMS" Other Jets". During this time we have “felt the pain” the BMS Dev’s go through developing things. It’s really hard to put a timeline on such things! Anyway, to do this we have been testing using various jets and software tools.
I am very happy to be able to finally make the following announcements…- Our testing/developmental “tool box” is now in order. Our “infrastructure” is built
- While we remain loyal to the FOM’s( Friends of Mafia) and the projects we’ve been asked to do, we are now doing direct development and testing for the BMS Hornet
And now the fun starts…
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Great news for BMS as a whole! Excited to see your work on the F/A-18!
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<p>Ok, prelim numbers are looking good for the Hornet’s airfoils. Just need to fine tune known conditions and prepare for the unknowns. Also, we are moving forward with the BE sim (and MatLab) that will be the prelim testing environment for our new Hornet & airfoils, before converting the coefficient data over to the F4BMS format . . . stay tuned!<br /><br /><img class=“ql-image” src=“https://i.imgur.com/gugvNck.jpg” /><br /></p>
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<blockquote>Ok, prelim numbers are looking good for the Hornet’s airfoils. Just need to fine tune known conditions and prepare for the unknowns. Also, we are moving forward with the BE sim that will be the prelim testing environment for our new Hornet & airfoils, before converting the coefficient data over to the F4-BMS format . . . stay tuned! <br /><br /><img class=“ql-image” src=“https://i.imgur.com/gugvNck.jpg” /></blockquote><p><br /><span style=“background-color:#dcdcdc”>Just a question: how will you go from your computed airfoil Coef to the aircraft one ?</span><br />Even for the clean airfoil I’m a bit surprised by the Cl/Cd reaching 30… (not to say how it is far away from the RL Hornet max Cl/Cd)</p>
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<p>The ratio you see there is only relative to the airfoil itself, not the complete aircraft. With ‘clean’ wings, I regularly see ratios of 20->60:1 (with Reynolds ranging from 3.1M to 17M+ on laminar foils with NCrit values ranging from: 5 -> 10). So what you are seeing there is not unreasonable, to say the least . . . Thank you for helping me clarify that.<br /><br />Airfoil data wll be plugged into a “Blade Element” simulator (& MatLab), which will include airframe & foil lift - drag coefficients. Then the whole aircraft compared against ‘known’ documented conditions (NASA & NATOPS docs) to validate the performance data we will be producing . . . .<br /><br /><br /><br /><em>**Sidenote: I am seeing a CFD cl/cd ratio of 54:1 (@ 4 degs AoA, 17.5M Re) on the Hornet’s main wing. From the time I have spent in the DCS:Hornet (700+ hours) this same performance (minimal parasitic and induced aircraft drag) was also seen at +4.0 degs AoA too . . .</em><br /><br /><br /></p>
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<p>A reality coming soon . . .<br /><br /><img class=“ql-image” src=“https://i.imgur.com/4t1OmzW.jpg” /><br /><br /><img class=“ql-image” src=“https://i.imgur.com/hXMRckI.gif” /><br /></p>
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