Lift vs. Bernoulli

Dear Sirs! How do you explain Lift on a Wing in inverted flight? Have you seen that NASA Glenn Research has change it´s Lift explanation to Newton laws? http://www.grc.nasa.gov/WWW/K-12/airplane/bernnew.html Some more links of Flight Physics: http://www.aa.washington.edu/faculty/eberhardt/lift.htm http://www.grc.nasa.gov/WWW/K-12/airplane/bernnew.html http://home.mira.net/~radacorp/ground_effect.html http://www.boeing.com/commercial/aeromagazine/aero_12/attack.html http://www.elmendorf.af.mil/Units/90FS/aoa.htm http://amber.aae.uiuc.edu/~m-selig/ads/afplots/whitcomb.gif New ”Non Bernoulli effect” wing on Airbus 330/340 http://www.rz.uni-frankfurt.de/~weltner/ http://www.rz.uni-frankfurt.de/~weltner/Flight/PHYSIC4.htm Weltner Lift http://www.informatik.uni-frankfurt.de/~plass/MIS/mis6.html Weltner Bernoulli http://www.grc.nasa.gov/Other_Groups/K-12/airplane/wrong3.html http://www.lerc.nasa.gov/www/K-12/airplane/right2.html http://www.jefraskin.com/forjef2/jefweb-compiled/published/coanda_effect.html http://jnaudin.free.fr/html/coanda.htm http://www.allstar.fiu.edu/aero/coanda.htm http://www.algonet.se/~newborg/ F18 Soundbarrier and highspeed pass http://www.amasci.com/wing/airgif2.html Beaty Gif pictures smokepuls plus SAAB 2000 http://www.diam.unige.it/~irro/gallery.html Prof. Colombinis photogallery http://www.diam.unige.it/~irro/profilo_e.html http://www.scienceweb.org/movies/aero.htm http://aerodyn.org/HighSpeed/supercritical.html http://www.wb-sails.fi/news/95_11_Tellingtales/Tellingtales.html http://www.cousteausociety.org/vessels/vessels.htm Lift from spinning balls: This website gives a lot of references all back to Newton/Robbins ! http://www.geocities.com/k_achutarao/MAGNUS/new_magnus.html http://www.soest.hawaii.edu/GG/STUDENTS/jfoster/normal.html Reversed Magnus effect explained: http://www.soest.hawaii.edu/GG/STUDENTS/jfoster/reverse.html Wrong Lift explanations: Smithsonian: http://www.nasm.edu/galleries/gal109/NEWHTF/HTF510.HTM http://www.elmendorf.af.mil/Units/90FS/bernoulli.htm False Bernoulli explanations: http://www.nasm.edu/galleries/gal109/LESSONS/TEXT/TEASERS.HTM http://www.physics.umd.edu/deptinfo/facilities/lecdem/demolst.htm#f4 US AirForce Museum: http://www.wpafb.af.mil/museum/zone/ff3.htm Dr. John S. Denker online aerodynamic book. Wrong Liftexplanation explained by ”Circulation flow ”creating” the Velocity Field”: Explanation only valid for a non exsisting mathematical modelled idel/perfect fluid. http://www.monmouth.com/~jsd/fly/how/htm/ http://www.monmouth.com/~jsd/fly/how/htm/airfoils.html
- Jan-Olov Newborg (age 22)
Stockholm, Sweden

Jan-Olov -

I don’t think that I could possibly explain this any better than these sites do. You’ve obviously done a lot of research on the subject. This list of sites is definitely a great resource for anyone else who’s interested in the subject.

-Tamara

(published on 10/22/2007)