New tailpipe regulations (exit holes and loopholes)

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Matt Somers
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Joined: 19 Mar 2009, 11:33

Re: New tailpipe regulations (exit holes and loopholes)

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As Turbo said at least mine (and I'm sure Craig's is similar) theory revolved around the opposite: Using the wastegate exhaust to entrain flow at low speed out of the lower outlet, when the WG closes the route is easier for the airflow to run up the pylon and stall the wing, much the same as the way the F Duct worked.

Image
Image

In any case it appears we may be on a hiding to nothing as I understand there is a technical directive that prohibits what we've all proposed...

I'm in the throws of trying to get hold of said TD but it won't be until after the GP weekend now. Hopefully we can then unloophole said loophole ;)
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PlatinumZealot
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Joined: 12 Jun 2008, 03:45

Re: New tailpipe regulations (exit holes and loopholes)

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I have the basic system sketched out. not yet drawn it on the computer. Not sure if it will work yet.
Challenges:
Is to get it to switch using the wastegate. because the wategate pipes is not isolation of the main exhaust.
To get the rear wing blown with these regs
To get the rear wing stalled
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ringo
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Joined: 29 Mar 2009, 10:57

Re: New tailpipe regulations (exit holes and loopholes)

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Matt Somers wrote:As Turbo said at least mine (and I'm sure Craig's is similar) theory revolved around the opposite: Using the wastegate exhaust to entrain flow at low speed out of the lower outlet, when the WG closes the route is easier for the airflow to run up the pylon and stall the wing, much the same as the way the F Duct worked.

http://2.bp.blogspot.com/-799TBMh7LO8/V ... active.png
http://3.bp.blogspot.com/-n84ReIQtv7M/V ... Active.png

In any case it appears we may be on a hiding to nothing as I understand there is a technical directive that prohibits what we've all proposed...

I'm in the throws of trying to get hold of said TD but it won't be until after the GP weekend now. Hopefully we can then unloophole said loophole ;)
That idea wont work if the waste gate pipe is not partially under the engine cover.
For Sure!!

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PlatinumZealot
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Joined: 12 Jun 2008, 03:45

Re: New tailpipe regulations (exit holes and loopholes)

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Matt Somers wrote:As Turbo said at least mine (and I'm sure Craig's is similar) theory revolved around the opposite: Using the wastegate exhaust to entrain flow at low speed out of the lower outlet, when the WG closes the route is easier for the airflow to run up the pylon and stall the wing, much the same as the way the F Duct worked.

http://2.bp.blogspot.com/-799TBMh7LO8/V ... active.png
http://3.bp.blogspot.com/-n84ReIQtv7M/V ... Active.png

In any case it appears we may be on a hiding to nothing as I understand there is a technical directive that prohibits what we've all proposed...

I'm in the throws of trying to get hold of said TD but it won't be until after the GP weekend now. Hopefully we can then unloophole said loophole ;)
OK get a hold of it - I have a feeling it is to stop the rear wing stalling by any means.
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PlatinumZealot
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Re: New tailpipe regulations (exit holes and loopholes)

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Scarbs and Matt.. calling Scarbs and Matt..come in Scarbs and Matt..
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scarbs
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Joined: 08 Oct 2003, 09:47
Location: Hertfordshire, UK
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Re: New tailpipe regulations (exit holes and loopholes)

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PlatinumZealot wrote:Scarbs and Matt.. calling Scarbs and Matt..come in Scarbs and Matt..
I'm here, do you have your monkey staller to show us? :lol:

Matt Somers
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Joined: 19 Mar 2009, 11:33

Re: New tailpipe regulations (exit holes and loopholes)

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I can now confirm I have a copy of the TD and it rules out using the wastegate to entrain flow for a fluidic switch....
Catch me on Twitter https://twitter.com/SomersF1 or the blog http://www.SomersF1.co.uk
I tweet tech images for Sutton Images

scarbs
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Re: New tailpipe regulations (exit holes and loopholes)

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We're just missing the Monkey Staller now...!

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PlatinumZealot
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Re: New tailpipe regulations (exit holes and loopholes)

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Matt Somers wrote:I can now confirm I have a copy of the TD and it rules out using the wastegate to entrain flow for a fluidic switch....
Haha. You know i did not get to move past the sketches stage. Why do you say that though? Are fluidic switches explicity blanned.
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matt21
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Joined: 15 Mar 2010, 13:17

Re: New tailpipe regulations (exit holes and loopholes)

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Matt Somers wrote:I can now confirm I have a copy of the TD and it rules out using the wastegate to entrain flow for a fluidic switch....
Do you mind sharing this TD with us?

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Thunder
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Joined: 06 Feb 2013, 09:50
Location: Germany

Re: New tailpipe regulations (exit holes and loopholes)

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Scarbs posted this a few Minutes ago on the Topic.

http://scarbsf1.com/?p=4488#more-4488
turbof1 wrote: YOU SHALL NOT......STALLLLL!!!
#aerogollum

Matt Somers
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Joined: 19 Mar 2009, 11:33

Re: New tailpipe regulations (exit holes and loopholes)

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matt21 wrote:
Matt Somers wrote:I can now confirm I have a copy of the TD and it rules out using the wastegate to entrain flow for a fluidic switch....
Do you mind sharing this TD with us?
I'd rather not I'm afraid as it came from a source, however, I'm still beating on the door to try and get the TD's in the public realm...

Suffice to say though the team questioning the legality drew the system as we had previously described and made this statement:

"The changes to the regulations to create a separate wastegate exit creates the possibility to use the opening of the wastegate as a control input for a fluidic valve."
Last edited by Matt Somers on 09 Jan 2016, 16:42, edited 1 time in total.
Catch me on Twitter https://twitter.com/SomersF1 or the blog http://www.SomersF1.co.uk
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PlatinumZealot
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Re: New tailpipe regulations (exit holes and loopholes)

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There is a possibility but that doesn't mean it will work well. I have a feeling they will let it slide.
It is difficult to get right for the reasons I mentioned before...
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PlatinumZealot
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Re: New tailpipe regulations (exit holes and loopholes)

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Now that the cars are out and about, I hope you guys see the difficulty of integrating the F-duct with the wastegate pipes. It is still possible though but again check my earlier posts on the challenges.

Blown monkey seat is easier. I still have not found the time to model these.
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hollus
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Joined: 29 Mar 2009, 01:21
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Re: New tailpipe regulations (exit holes and loopholes)

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What has changed now that we have seen the actual solutions? There was a directive banning such ducts, which suggests that the idea at least showed some promise.
Regarding your blown monkey seat... spill the beans or shut up! :) Since this seems somehow to be about winning arguments (it wasn't), you still have a few weeks to show your design before anyone races in anger.
Rivals, not enemies.