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Effect of winglet shape on aircraft wing aerodynamic performance / Eslam Said Abdelghany Ahmed ; Supervised Essam E. Khalil , Osama Ezzat Abdellatif , Gamal Abdelmonim Elhariry

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Eslam Said Abdelghany Ahmed , 2015Description: 179 P. : charts , facsimiles ; 30cmOther title:
  • تأثير شكل زعانف الأجنحة علي الأداء الايروديناميكي لجناح الطائرة [Added title page title]
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Dissertation note: Thesis (Ph.D.) - Cairo University - Faculty of Engineering - Department of Mechanical Power Engineering Summary: A winglet is a device used to improve the efficiency of aircraft by lowering the lift induced drag caused by wingtip vortices. The objectives of the analysis are to compare the aerodynamic characteristic wing with and without winglet. In the case study, take winglet upward and downward, winglet upward with the cant - sweep angles (0, 30 and 45 degree) {u2013} (0, 20 and 40 degree), a taper ratios of (0.2, 0.6 and 1) and a twist in and out (5 degree). A CFD simulation performs by FLUENT ®, computational fluid dynamics software with The Spalart-Allmaras turbulence model to compare of aerodynamics characteristics. All cases all have the same initial conditions. Since wingtip vortices are more prevalent at take-off conditions for low speed and high lift conditions, the wings run at a Mach number of 0.2 at sea level
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Item type Current library Home library Call number Copy number Status Date due Barcode
Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.11.Ph.D.2015.Es.E (Browse shelf(Opens below)) Not for loan 01010110068000000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.13.11.Ph.D.2015.Es.E (Browse shelf(Opens below)) 68000.CD Not for loan 01020110068000000

Thesis (Ph.D.) - Cairo University - Faculty of Engineering - Department of Mechanical Power Engineering

A winglet is a device used to improve the efficiency of aircraft by lowering the lift induced drag caused by wingtip vortices. The objectives of the analysis are to compare the aerodynamic characteristic wing with and without winglet. In the case study, take winglet upward and downward, winglet upward with the cant - sweep angles (0, 30 and 45 degree) {u2013} (0, 20 and 40 degree), a taper ratios of (0.2, 0.6 and 1) and a twist in and out (5 degree). A CFD simulation performs by FLUENT ®, computational fluid dynamics software with The Spalart-Allmaras turbulence model to compare of aerodynamics characteristics. All cases all have the same initial conditions. Since wingtip vortices are more prevalent at take-off conditions for low speed and high lift conditions, the wings run at a Mach number of 0.2 at sea level

Issued also as CD

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