Çırpan kanadın aerodinamik parametrelerinin deneysel olarak incelenmesi

Yıl 2017, , 1035 - 1050, 08.12.2017

İlker Yılmaz , Sinan Keiyinci Ömer Çam , Adem Karcı

https://doi.org/10.17341/gazimmfd.369354

Cited By: 1

Öz

İnsansız
hava araçlarının kullanım alanlarının artması bu alanda yapılan çalışmaların
sayısını artırmıştır. İnsansız hava araçlarının daha küçük modelleri olan mikro
hava araçları sivil ve askeri birçok alanda kullanılmaktadır. Mikro hava
araçları temel olarak sabit, döner ve çırpan kanatlı olarak üçe ayrılır. Bu
çalışmada incelenen çırpan kanatlı hava araçlarının en önemli avantajı, itki
kuvvetinin kanatların çırpma hareketi sonucu oluşur ve böylece harici bir itki
sistemine ihtiyaç duyulmaz. Bu çalışmanın amacı çırpan kanatlardaki daimi
olmayan akışı rüzgâr tünelinde deneysel olarak incelemektir. Çalışma kapsamında
bir çırpan kanat mekanizması oluşturulmuş ve farklı malzemelerden üretilen
kanatlar çırpma hareketi yaparken farklı hava hızı, hücum açısı ve çırpma
frekanslarındaki aerodinamik parametreleri incelenmiştir. Elde edilen sonuçlara
göre; yüksek hava hızı ve hücum açılarında taşıma kuvveti artarken, sürtünmenin
artmasından dolayı itki kuvveti azalmaktadır. Yüksek çırpma frekanslarında itki
kuvveti artarken taşıma kuvveti azalmıştır. Malzeme açısından
değerlendirilirse, naylon ve lateks kanadın itki kuvvetlerinin ahşap kanattan
daha iyi olduğu tespit edilmiştir.

Anahtar Kelimeler

Çırpan kanat, Mikro hava aracı, Daimi olmayan akış, Rüzgâr tüneli

Kaynakça

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