Uçagin Kanat Hücum Kenarinda Buzdan Arindirma Performansini Etkileyen Parameterelerin Optimizasyonu
[ X ]
Tarih
2022
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Osman SAGDIÇ
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Bu çalismada, uçus esnasinda tehlikeli durumlardan biri olan uçak kanat hücum kenari üzerinde buz birikimi sayisal olarak arastirilmistir. Hedef yüzey Tw=263.15 K derecede sabit tutulurken, giris sicakligi Tin=473.15 K olarak m ?=0.004 kg/s. ile sisteme iletilmistir. Arastirma NACA 0015 kullanarak sayisal çalismanin sabit piccolo tüp ölçüleri, jet açisi ve jetler ve jet-hedef yüzey mesafeleri için dogrulama çalismasi ile baslamistir. Ikinci ve üçüncü asamada farkli jet açilari (30°=?=150°) altinda X (4=H/d=8) ve Y (-1.25=L/d=1.25) yönünde degisen piccolo tüp pozisyonlarinin buzdan arindirma performansini incelemektir. Dördüncü asama buzdan arindirma sisteminin performansini maksimum tasinim isi transfer ve minimum basinç azalimi durumu ile arttirmak için optimum H/d, L/d ve ??oranlarini belirlemektir. Optimizasyon çalismasi Yüzey Cevap Metodolojisi kullanilarak yapilmistir. Sonuç olarak, teklif edilen tasarimda en yüksek buzdan arindirma performansi ????°? L/d=0.0 ve H/d=4.0 kullanilarak basarilirken, optimizasyon çalismalari maksimum isi transfer orani ve minimum basinç düsüsü degerini basarmak için ?? L/d ve H/d degerlerinin sirasiyla 55.45°, 0.0 ve 4.0 olmasi gerektigimi göstermistir.
In this article, one of the hazardous trouble in-flight situations called ice accumulation on wing leading edge of aircraft has been numerically investigated. While the target surface is kept constant temperature at Tw=263.15 K, the inlet temperature is taken constant at Tin=473.15 K and it enters to the system with m ?=0.004 kg/s. The investigation starts with validation of numerical study utilizing airfoil type of NACA 0015 using constant piccolo tube dimensions, jet angle, distance among jets and distance between jet-to-target positions. The second and third stages are to analyze the anti-icing performance of changing positions of piccolo tube on X (4=H/d=8) and Y (-1.25=L/d=1.25) directions under different jet angles (30°=?=150°). The fourth stage is to determine the optimum H/d, L/d, and ??ratios to increase anti-icing performance with maximum convective heat transfer and minimum pressure drop condition. The optimization study has been done using Response Surface Methodology (RSM). Finally, while the best anti-icing performance proposed design is achieved using?????°? L/d=0.0, and H/d=4.0, the optimization results show that the??? L/d, and H/d values should be 55.45°, 0.0, and 4.0, respectively to achieve maximum heat transfer rate with minimum pressure drop value.
In this article, one of the hazardous trouble in-flight situations called ice accumulation on wing leading edge of aircraft has been numerically investigated. While the target surface is kept constant temperature at Tw=263.15 K, the inlet temperature is taken constant at Tin=473.15 K and it enters to the system with m ?=0.004 kg/s. The investigation starts with validation of numerical study utilizing airfoil type of NACA 0015 using constant piccolo tube dimensions, jet angle, distance among jets and distance between jet-to-target positions. The second and third stages are to analyze the anti-icing performance of changing positions of piccolo tube on X (4=H/d=8) and Y (-1.25=L/d=1.25) directions under different jet angles (30°=?=150°). The fourth stage is to determine the optimum H/d, L/d, and ??ratios to increase anti-icing performance with maximum convective heat transfer and minimum pressure drop condition. The optimization study has been done using Response Surface Methodology (RSM). Finally, while the best anti-icing performance proposed design is achieved using?????°? L/d=0.0, and H/d=4.0, the optimization results show that the??? L/d, and H/d values should be 55.45°, 0.0, and 4.0, respectively to achieve maximum heat transfer rate with minimum pressure drop value.
Açıklama
Anahtar Kelimeler
Optimizasyon, Buzdan Arindirma, NACA 0015, Yüzey Cevap Metodolojisi, HAD
Kaynak
Avrupa Bilim ve Teknoloji Dergisi
WoS Q Değeri
Scopus Q Değeri
Cilt
Sayı
34
