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Re: [Jsbsim-devel] Thermal street lift
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From: Simon J. M. <sim...@go...> - 2020-04-15 11:14:20
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Guys we're still trying to implement this into Outerra and we're having no luck getting any turbulent effects.... Any ideas ? Simon On Mon, 13 Apr 2020, 13:30 Simon Julie Morley, <sim...@go...> wrote: > Ah I think this is another one of those issues that FG throws into > JSBsim... > > Even if I turn turbulence to none the wind-down-fps property is still > being updated to near enough zero by what looks to be FG ridge lift code. > > I wonder if I can turn FG ridge lift off.. > > On Mon, 13 Apr 2020, 12:53 Sean McLeod, <se...@se...> wrote: > >> Hi >> >> >> >> Okay so in the video you enable turbulence, which is going to add some >> semi-random values to the wind vector. >> >> >> >> So can you confirm that if you don’t enable turbulence, but rather simply >> set atmosphere/wind-down-fps that you don’t see the expected result? >> >> >> >> Cheers >> >> >> >> *From:* Simon Julie Morley via Jsbsim-devel < >> jsb...@li...> >> *Sent:* Monday, April 13, 2020 1:01 PM >> *To:* Development issues <Jsb...@li...> >> *Cc:* Simon Julie Morley <sim...@go...> >> *Subject:* Re: [Jsbsim-devel] Thermal street lift >> >> >> >> Hopefully this video my explain better >> >> >> >> https://photos.app.goo.gl/GqTXFuZ6NZsJ4zRD7 >> >> >> >> Regards >> >> >> >> Simon >> >> >> >> On Mon, 13 Apr 2020, 11:35 Sean McLeod, <se...@se...> wrote: >> >> Hi Simon >> >> >> >> Shouldn’t be according to the comments in the source code. Maybe there is >> some other code you have that is resetting the wind? >> >> >> >> // User-specified steady, constant, wind properties (local >> navigational/geographic frame: N-E-D) >> >> PropertyManager->Tie("atmosphere/psiw-rad", this, &FGWinds::GetWindPsi, >> &FGWinds::SetWindPsi); >> >> PropertyManager->Tie("atmosphere/wind-north-fps", this, eNorth, (PMF)& >> FGWinds::GetWindNED, >> >> (PMFd)&FGWinds >> ::SetWindNED); >> >> PropertyManager->Tie("atmosphere/wind-east-fps", this, eEast, (PMF)& >> FGWinds::GetWindNED, >> >> (PMFd)&FGWinds >> ::SetWindNED); >> >> PropertyManager->Tie("atmosphere/wind-down-fps", this, eDown, (PMF)& >> FGWinds::GetWindNED, >> >> (PMFd)&FGWinds >> ::SetWindNED); >> >> PropertyManager->Tie("atmosphere/wind-mag-fps", this, &FGWinds >> ::GetWindspeed, >> >> &FGWinds >> ::SetWindspeed); >> >> >> >> Cheers >> >> >> >> *From:* Simon Julie Morley via Jsbsim-devel < >> jsb...@li...> >> *Sent:* Monday, April 13, 2020 11:57 AM >> *To:* Development issues <Jsb...@li...> >> *Cc:* Simon Julie Morley <sim...@go...> >> *Subject:* Re: [Jsbsim-devel] Thermal street lift >> >> >> >> Problem is that seems to be a JSBsim calculated value..... So you can't >> change this property, as it's gone as quick as you set it. >> >> >> >> On Mon, 13 Apr 2020, 06:45 Dave Culp, <dav...@co...> wrote: >> >> atmosphere/wind-down-fps >> >> I believe an updraft would be a negative value. >> >> >> >> -- Dave >> >> >> >> On 4/12/20 10:28 PM, Simon Julie Morley via Jsbsim-devel wrote: >> >> Hi guys, >> >> >> >> I believe what I'm looking to adjust is within the atmosphere properties >> but I don't know which one I'd adjust to generate a constant thermal lift >> of say 3ft sec >> >> >> >> Any help would be appreciated >> >> >> >> Regards >> >> >> >> Simon. >> >> >> >> _______________________________________________ >> >> Jsbsim-devel mailing list >> >> Jsb...@li... >> >> https://lists.sourceforge.net/lists/listinfo/jsbsim-devel >> >> _______________________________________________ >> >> The JSBSim Flight Dynamics Model project >> >> http://www.JSBSim.org >> >> _______________________________________________ >> >> >> >> _______________________________________________ >> Jsbsim-devel mailing list >> Jsb...@li... >> https://lists.sourceforge.net/lists/listinfo/jsbsim-devel >> _______________________________________________ >> The JSBSim Flight Dynamics Model project >> http://www.JSBSim.org >> _______________________________________________ >> >> _______________________________________________ >> Jsbsim-devel mailing list >> Jsb...@li... >> https://lists.sourceforge.net/lists/listinfo/jsbsim-devel >> _______________________________________________ >> The JSBSim Flight Dynamics Model project >> http://www.JSBSim.org >> _______________________________________________ >> >> |
