Hesham Shahat Mohamed Helal  <br/><br/>
Improvement of aerodynamic performance of aircraft wing /  
 تحسين أداء الديناميكا الهوائية لجناح الطائرة 
Hesham Shahat Mohamed Helal ; Supervised Essam E. Khalil Hassan , Osama Ezzat Abdellatif , Gamal Abdelmonim Elhariry 
 - Cairo :   Hesham Shahat Mohamed Helal ,   2016 
 - 157 P. :   facsimiles ;   30cm 
<br/><br/>Thesis (Ph.D.) - Cairo University - Faculty of Engineering - Department of Mechanical Power Engineering 
<br/><br/> Aircraft designers are performing research to improve the overall aircraft efficiency which  would be useful both for aircraft manufacturer and airlines. A winglet is a system used to  enhance the effectiveness of air plane by increasing lift to- drag ratio (L/D).The target of  this investigation is compare the aerodynamic characteristics of the wing with and without  winglet. For the this study, thesis considered raked winglet with four angles and considered  the optimum angle to study the effect of taper ratios and then study blended winglet at four  angles, and considered the optimum angle to study the effect of taper ratios, study the effect  of length of winglet and Mach number ,using CFD simulation performs by FLUENT ® 
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<br/><br/><label>Subjects--Index Terms: </label>Aerodynamic Performance  CFD Winglets