Yarık açılan NACA 0018 etrafındaki Akış Yapısının Sayısal İncelenmesi

Öz

Çeşitli hücum açılarında yarık açılan NACA 0018 kanat profilini sayısal olarak inceledik. Hesaplamalı akışkanlar dinamiği (CFD) sonuçları, kanat profilinin etkinliğini göstermek için temel kanat profili ile karşılaştırıldı. Farklı yarık konumlarının aerodinamik perspektiften pasif akış kontrolünü nasıl sağlayacağını iyice anlamak için Reynolds sayısı Re = 3x105 olarak sabit tutuldu. Daha yüksek hücum açıları için temel kanat profiline kıyasla, yarıkların etkinliğini ortaya çıkarmak için üç farklı yarık konumu kullandık. Sonuçlarımız, yarıklı tasarımın kaldırmayı artırmaya ve temel kanat profilinin perdövites açısını geciktirmeye yol açacağını göstermektedir.

Anahtar Kelimeler

• Kanat profili
• HAD
• Reynolds sayısı
• Yarık
• Pasif akış kontrolü

Numerical Investigation of Flow Structure around NACA 0018 with slot

Abstract

We numerically investigated NACA 0018 airfoil with slot at various angles of attack. The computational fluid dynamics (CFD) results were compared with the base airfoil to show the effectiveness of the airfoil. Reynolds number was kept constant as Re=3x105 to thoroughly understand how different locations of slot would provide passive flow control from aerodynamic perspective. We have used three different slot locations to reveal the effectiveness of the slot compared to the base airfoil for higher angles of attack. Our results show that the slotted design would yield to increase the lift and to delay the stall angle of base airfoil.

Keywords

• Airfoil
• CFD
• Reynolds number
• Slot
• Passive flow control

Kaynakça

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