HİPERBOLİK PROFİLLİ DAİRESEL KANATLARIN PERFORMANS ANALİZİ VE OPTİMİZASYONU

Yıl 2012, Cilt: 27 Sayı: 3, 0 - , 19.02.2013

Cihat Arslantürk

Öz

Bu çalışmada, ısı iletim katsayıları sıcaklıkla değişen hiperbolik profile sahip dairesel kanatlar, bir-boyutlu ısılanaliz ile optimize edilmiştir. Isı iletim katsayısının değişken olması yüzünden doğrusal olmayan tek boyutlukanat denklemi, yarı-analitik bir metot olan homotopi analiz metodu (HAM) ile çözülerek kanat içindeki sıcaklıkdağılımı elde edilmiştir. HAM algoritması, çözümün yakınsaklığı ve hassaslığını kontrol eden bir parametreiçerdiğinden, sayısal yöntemden kaynaklanan hatanın minimize edilmesi mümkündür. Bu çözüm yardımıylakanat verimi hesaplanmış, ancak bulunan ifadenin çok karmaşık olmasından dolayı kanat verimi, geometrik veısıl problem parametrelerinin fonksiyonu olarak bir korelasyon denklemi ile ifade edilmiştir. Bu korelasyondenklemi optimizasyon hesaplarında kullanılarak, verilen ısıl koşullarda ısı geçişini maksimum yapan kanatgeometrisi belirlenmiştir.

Anahtar Kelimeler

Kanat, verim, homotopi analiz metodu, hiperbolik profil, değişken ısı iletim katsayısı

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