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AERODİNAMİK 
BİRKAN PAÇALI 
2014-2015
Aerodinamik 
Aerodinamik;genel tanımıyla katı cisimleri akışkan maddeler içindeki 
haraketlerini inceleyen bir fizik dalıdır.
Yağmur Damlası 
Minimum Sürtünme !
Aerofoil Yapı
Nasıl Havada Kalıyoruz?
Kanada Etki Eden Kuvvetler
Dirençler 
• Parasitik Direnç 
Profil:aerofil yapıdan dolayı oluşan %4 lük direnç 
Form:Pilotun kanat altında oluşturduğu direnç 
• İnduced Direnç : Paraşütün hava içinde ilerlemesi ile oluşan,havanın 
düzgün yapısının bozulması ve arkada tamamen bozuk bir hava 
yapısı bırakması 
• Dirençleri etkileyen faktörler ?
Dönüşler
Speed Bar
Hücum açısı nasıl değişir 
Speed’e basarsak 
Hücum açısı azalır 
Kanat hızlanır 
Fren alırsak 
Hücum açısı artar 
Kanat yavaşlar
Stoll 
‘’Stol kanadın uçuculuğunu tamamıyla yitirmesidir’’ 
Hücum açısının aerodinamik kuvvetleri yok edecek 
kadar artmasıyla meydana gelir
Kanadın Kilo Limitlerinde Aeordinamiği 
• Normalde kubbedeki toplam kaldırma kuvveti ile toplam 
ağırlık tam ters yönlerde ve birbiri ile denge halindedir. 
• Eğer üst limitte uçarsak kanat hızlanacak,R-W dengesi 
bozulacak hız ve çöküş artacaktır. 
• Eğer alt limitte uçarsak R-W dengesi kurulamayacak en 
ufak hava hareketinden olumsuz etkilenecektir.
Hava,Rüzgar ve Yer Hızı
Vorteks 
‘’Kanat uçlarında 
oluşan girdap 
şeklindeki 
türbülanstır.’’
Aspect Ratio
Yüksek performans 
Düşük güvenlik 
•Yüksek aspect ratio 
•Küçük cell ağızları 
•Çok sayıda Cell 
•Yüksek glide ratio 
•Yüksek hız 
•Düşük çöküş 
•Düşük iç basınç 
•Az sayıda ip 
•Dacronsuz ipler
Düşük performans 
Yüksek güvenlik 
•Düşük aspect 
ratio 
•Büyük cell ağızları 
•Az sayıda cell 
•Düşük glide ratio 
•Yüksek çöküş 
•Düşük hız 
•Yüksek iç basınç 
•Çok sayıda ip

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Aerodinamik