tag:blogger.com,1999:blog-37936507.post5451698155358346468..comments2023-08-08T10:25:47.529+01:00Comments on McCabism: How Red Bull simulate front-wing aeroelasticityGordon McCabehttp://www.blogger.com/profile/09151162643523937086noreply@blogger.comBlogger10125tag:blogger.com,1999:blog-37936507.post-49543021724448746882011-04-05T21:15:44.893+01:002011-04-05T21:15:44.893+01:00I think, if RBR doesn´t use some exotic material s...I think, if RBR doesn´t use some exotic material sensitive at one given action, that inside of wing have "something" (maybe a fine work with carbon fiber, maybe other think) simply allowing a bigger deflection when applied a calculated horizontal load (the drag of the wing make that).<br /> The FIA test only use a vertical load, if they add a horizontal load, with the value of the maximal drag of the wing, the "thing" is easely watchable.nanotopehttps://www.blogger.com/profile/07513679040853790223noreply@blogger.comtag:blogger.com,1999:blog-37936507.post-91284812513212359182011-04-05T16:15:00.741+01:002011-04-05T16:15:00.741+01:00Simply Excellent ! Loved the explanation of Langra...Simply Excellent ! Loved the explanation of Langrangian as well as Euler approachesAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-37936507.post-25614894699340672202011-04-05T15:35:53.962+01:002011-04-05T15:35:53.962+01:00"more effective than trying to solve the time..."more effective than trying to solve the time-dependent Schrodinger equation for 10^23 particles"<br /><br />Indeed! Well we always have to make assumptions at some scales I guess... even if it means modelling a fluid as continuous and a wing as a perfectly formed mesh.<br /><br />It's an interesting time, especially if the FIA tests remain linear and the analysis/design is anything but!<br /><br />Thank you for this blog. Love it.johnhhttps://www.blogger.com/profile/10009291058570680623noreply@blogger.comtag:blogger.com,1999:blog-37936507.post-85358778669565905512011-04-05T11:52:34.247+01:002011-04-05T11:52:34.247+01:00Is it feasible within the boundaries of a formula ...Is it feasible within the boundaries of a formula one budget to develop software this complicated? <br /><br />I suspect the number of man-hours required to produce such software is more than a lot of formula one teams have available across their entire engineering department.Unknownhttps://www.blogger.com/profile/10478880922018185351noreply@blogger.comtag:blogger.com,1999:blog-37936507.post-4446054825075440942011-04-05T10:27:54.605+01:002011-04-05T10:27:54.605+01:00So, is it legal? Not according to the rules but ac...So, is it legal? Not according to the rules but according to scrutineering it is. Which is right?00tonyhttps://www.blogger.com/profile/17371237165356578721noreply@blogger.comtag:blogger.com,1999:blog-37936507.post-85878666491448230432011-04-05T00:56:30.513+01:002011-04-05T00:56:30.513+01:00Interesting, perhaps, that Lamborghini have had an...Interesting, perhaps, that Lamborghini have had an autoclave for many years now, and their parent company VW are RBR's closest manufacturer friend, judging by their Toro Rosso and other ventures. <br /><br />A wise bet would involve an Adrian Newey designed Lamborghini F1 car winning the WCC in 2013?Gridlockhttps://www.blogger.com/profile/13959099751063828174noreply@blogger.comtag:blogger.com,1999:blog-37936507.post-23521005394227724002011-04-04T19:38:45.292+01:002011-04-04T19:38:45.292+01:00Thanks Mathieu.Thanks Mathieu.Gordon McCabehttps://www.blogger.com/profile/09151162643523937086noreply@blogger.comtag:blogger.com,1999:blog-37936507.post-32814798631074427042011-04-04T19:35:01.655+01:002011-04-04T19:35:01.655+01:00Very interesting article.
It's obvious that ...Very interesting article. <br /><br />It's obvious that Red Bull's front wing is going down with the air pressure. Lots of magazines talk about that. But now I can understand how is this possible (also their is always a deformation but here this deformation is fully controlled). <br /><br />I read your blog with a dictionnary (beacause I'm french) but I put it in my favorites. <br /><br />Thank you.<br /><br />Mathieu.Mathieuhttps://www.blogger.com/profile/02796694840723251704noreply@blogger.comtag:blogger.com,1999:blog-37936507.post-83641476391000795682011-04-04T18:13:51.022+01:002011-04-04T18:13:51.022+01:00Cheers John.
The in-car footage of Vettel's S...Cheers John.<br /><br />The in-car footage of Vettel's Spa accident, and the behaviour of the front-wing, is indeed fascinating... <br /><br />The Fluid-Structure Interaction implemented by MSC is a so-called partitioned approach, in which the two separate domains are represented by separate software algorithms, and coupled together. The alternative is a so-called monolithic approach, in which both domains are represented in the same piece of software.<br /><br />It's conceivable that the latter approach could also be used to represent front-wing elasticity. One could have an Arbitrary Lagrange Eulerian (ALE) simulation, in which some of the mesh corresponds to the interior of front wing, with its distinctive density and constitutive relation (between stress and strain), while the rest of the mesh corresponds to the surrounding air, with its distinctive density and viscosity. In those regions of airflow where turbulence develops, one would avoid mesh-tangling issues by allowing the mesh to become Eulerian.<br /><br />All such approaches are non-reductionistic, in the sense that they are more effective than trying to solve the time-dependent Schrodinger equation for 10^23 particles. Clearly, however, the partitioned approach introduces an additional type of modularity to the representation of the macroworld.Gordon McCabehttps://www.blogger.com/profile/09151162643523937086noreply@blogger.comtag:blogger.com,1999:blog-37936507.post-16932307453855033122011-04-04T11:28:17.472+01:002011-04-04T11:28:17.472+01:00Very interesting article Gordon.
It's clear ...Very interesting article Gordon. <br /><br />It's clear that a non-reductionist approach has been used here by MSC in order to study a coupled system. <br /><br />In terms of dynamics, it's interesting to think that the tipping points of such a system need to be found using lots of testing I presume (note the Vettel failed nose last year). I also think this leads back to why Mark didn't get a particular front wing too.<br /><br />Such a bifuraction point might have also been involved when Vettel ran into Button at Spa - this had not been simulated it seems and a loss of driver control was the result.<br /><br />MSC state that with multi-physics simulation they "enable co-simulation across the boundaries of engineering disciplines." I know you criticised System Engineering a while back, but such an approach is fundamental to understanding this kind of feedback and overall complexity.<br /><br />I think we're going to see some interesting developments around all parts of the car in the future, so long as the FIA testing criteria are based on simple tests relating to parts (load testing) and not ones complex coupled systems.<br /><br />John.johnhhttps://www.blogger.com/profile/10009291058570680623noreply@blogger.com