tag:blogger.com,1999:blog-2239944414177437471.post422513328710888991..comments2024-03-28T16:47:18.956+00:00Comments on SomersF1 - The technical side of Formula One: In theory: Blown rear wing (Active-DRD)Matthew Somerfieldhttp://www.blogger.com/profile/13759263537936706584noreply@blogger.comBlogger14125tag:blogger.com,1999:blog-2239944414177437471.post-23007584011780742382015-10-22T17:26:05.412+01:002015-10-22T17:26:05.412+01:00Wouldn't that create a problem, while braking ...Wouldn't that create a problem, while braking from high speeds? Sure, the wastegate would eventually open after reaching lower speeds, but at the start of the braking, the stalling would be active, which would cause quite a bit of instability, when it's badly needed. Or am I missing something? :)Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2239944414177437471.post-44244424966518837282015-10-22T09:49:26.825+01:002015-10-22T09:49:26.825+01:00That depends on their development of said system a...That depends on their development of said system and/or the specification of the PU they're using. I'd expect gains of around 7/8kph on the straights and beyond that for well developed systems but it's the additional downforce that can be grabbed from higher wing AoA's that would also help lap time..Matthew Somerfieldhttps://www.blogger.com/profile/13759263537936706584noreply@blogger.comtag:blogger.com,1999:blog-2239944414177437471.post-89436212671507557722015-10-21T12:09:17.822+01:002015-10-21T12:09:17.822+01:00So this will put customers like Williams at a disa...So this will put customers like Williams at a disadvantage? But how big could this disadvantage be?<br />Thanks!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2239944414177437471.post-12827368204279529542015-10-21T05:38:50.544+01:002015-10-21T05:38:50.544+01:00This comment has been removed by a blog administrator.WARHADI KALTIMhttps://www.blogger.com/profile/14269937057354201060noreply@blogger.comtag:blogger.com,1999:blog-2239944414177437471.post-14465683683981681072015-10-21T05:08:16.976+01:002015-10-21T05:08:16.976+01:00This comment has been removed by a blog administrator.Ibu.Karina Safahhttps://www.blogger.com/profile/07947950492667239756noreply@blogger.comtag:blogger.com,1999:blog-2239944414177437471.post-83453542213963692442015-10-20T14:33:34.065+01:002015-10-20T14:33:34.065+01:00Hi Hollus, thanks for stopping by and for posting ...Hi Hollus, thanks for stopping by and for posting a link to the article on F1Technical.<br /><br />Although I wouldn't rule out your implementation of gear ratios it's in opposition of how I see Active-DRD working. I don't want to open the wastegate at higher speeds to trigger DRD instead I would open the wastegate at low speeds to deactivate it.<br /><br />DRD inactive (low speed): Matthew Somerfieldhttps://www.blogger.com/profile/13759263537936706584noreply@blogger.comtag:blogger.com,1999:blog-2239944414177437471.post-11052449428482248462015-10-20T12:11:19.246+01:002015-10-20T12:11:19.246+01:00Thanks David :) the wastegate is part of the power...Thanks David :) the wastegate is part of the powerunit regulations thanks to the 2016 regs, creating a fluidic switch system with no moveable parts that uses it can't be classed as a moveable aerodynamic device, otherwise we'd be banning exhausts too.. ;)Matthew Somerfieldhttps://www.blogger.com/profile/13759263537936706584noreply@blogger.comtag:blogger.com,1999:blog-2239944414177437471.post-79947015096868847882015-10-20T12:07:47.804+01:002015-10-20T12:07:47.804+01:00Ah but I'm proposing the opposite, the wastega...Ah but I'm proposing the opposite, the wastegate is entrain in flow through the lower neutral outlet at low speed. At high speed the wastegate closes and the airflows makes its way up the pylon(s) as this is an easier path for it to navigate, which in-turn causes the 'stall'.Matthew Somerfieldhttps://www.blogger.com/profile/13759263537936706584noreply@blogger.comtag:blogger.com,1999:blog-2239944414177437471.post-15645452105529001032015-10-20T12:05:18.504+01:002015-10-20T12:05:18.504+01:00Thanks, you aren't using the wastegate gases t...Thanks, you aren't using the wastegate gases to 'stall' the aero they are used at low speed to entrain the airflow through the neutral feed. As speed builds the wastegate is closed and airflow from the airbox is fed through the pylon(s) and is ejected laterally into the rear wings airstream, causing separation and a 'stall' just as the F Duct did.Matthew Somerfieldhttps://www.blogger.com/profile/13759263537936706584noreply@blogger.comtag:blogger.com,1999:blog-2239944414177437471.post-21696919195847914462015-10-20T11:56:11.727+01:002015-10-20T11:56:11.727+01:00Ah DRD, an old friend with big ears has returned, ...Ah DRD, an old friend with big ears has returned, stirring fond memories! This is a great discussion piece and merits much discussion. One thing though, if you are using the ECU to manage waste gate operation for Active DRD, does this not constitute a preprogrammed moveable aerodynamic device? <br /><br />Great piece as ever 👍Anonymoushttps://www.blogger.com/profile/10743304109642493514noreply@blogger.comtag:blogger.com,1999:blog-2239944414177437471.post-80926375892551348832015-10-19T21:16:22.099+01:002015-10-19T21:16:22.099+01:00If the wastegate can't be controlled independe...If the wastegate can't be controlled independently it will be extremely hard to use them to stall the rear wing. The moment you are about to brake at the end of the straight, as you let of the throttle the wastegates will open....hence stall your rear wing...during braking and cornering...bad idea. BUT, if you can control them idependently (looking at the first image in this topic) lower pipeAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-2239944414177437471.post-14695807118635845432015-10-19T20:08:47.482+01:002015-10-19T20:08:47.482+01:00Great article. Point of clarity please...controlli...Great article. Point of clarity please...controlling intermittent wastegate exhausting is a challenge; once done however, are the gasses sufficient to affect the aero er... properly/effectively/long enough? Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-2239944414177437471.post-72864731015774696152015-10-19T19:16:34.869+01:002015-10-19T19:16:34.869+01:00Elaborating on a point half-made in that other thr...Elaborating on a point half-made in that other thread: Activating the duct based on speed is difficult and limited to speeds above the circuit's fastest corner. An alternative aggressive strategy totally under driver control could be: <br />Set up gears 1 through 6 so that they can cover everything from 0 to 300km/h. Those 6 operate normally. Then set up 7th to operate between, say, 270 and hollusnoreply@blogger.comtag:blogger.com,1999:blog-2239944414177437471.post-28892295739249431182015-10-19T18:50:08.559+01:002015-10-19T18:50:08.559+01:00Matt you must be a technical advisor for a racing ...Matt you must be a technical advisor for a racing team..just leave, Scarbs must be an idiot he never clearly explains anything to the fullest like you!!!!samraj_officialhttps://www.blogger.com/profile/05103213986163682315noreply@blogger.com