Bu kaydın yasal hükümlere uygun olmadığını düşünüyorsanız lütfen sayfa sonundaki Hata Bildir bağlantısını takip ederek bildirimde bulununuz. Kayıtlar ilgili üniversite yöneticileri tarafından eklenmektedir. Nadiren de olsa kayıtlarla ilgili hatalar oluşabilmektedir. MİTOS internet üzerindeki herhangi bir ödev sitesi değildir!

An Ice Accretion Prediction Tool For Airfoils Based On Openfoam

Oluşturulma Tarihi: 21-03-2019

Niteleme Bilgileri

Tür: Tez

Alt Tür: Doktora (Mühendislik)

Yayınlanma Durumu: Yayınlanmamış

Dosya Biçimi: PDF

Dil: İngilizce

Konu(lar): Motorlu taşıtlar. Havacılık, Uzaycılık. Uzay seyahati,

Yazar(lar): Seghaer, Hossein Edeeb (Yazar),

Emeği Geçen(ler): Akay, Hasan U. (Danışman),

Anahtar Kelimeler

open-source, supercooled droplets, rime ice, glaze ice, runback water


Özet

Ice accretion on aircraft components degrades the aircraft performance and causes seriousflight problems. Flight tests, icing wind tunnels, and commercial packages arethe main tools used to predict ice shapes and thicknesses. Although there are somecommercial and institutional ice accretion simulation packages such as LEWISE, ONERA,FENSAP, CIRA and CANICE available in the literature, there is no major iceaccretion simulation package available in the open-source community. In this thesis,open-source software are used and modified for simulating ice accretion process andits eect on the aircraft characteristics. OpenFoam solver simpleFoam is used forsolving the viscous turbulent fluid flow around an airfoil and the Lagrangian solvericoUncoupledKinematicParcelFoam for solving the trajectory of supercooled waterdroplets. To solve the governing equations of the phase-change, a transient solvercalled THERMSOLVICE is developed using the Octave library. Ice accretion algorithmis created by combining the available OpenFOAM solvers and the developedTHERMSOLVICE solver. It is believed that this approach has the potential for improvingthe state of the art in prediction of ice formation on aircraft components asmore researchers work on it. The created package is used to predict rime and glaze iceivshapes and thicknesses on a wing airfoil for dierent icing condition cases. The eectsof ice formation on the airfoil lift and drag coecients are also investigated, showingsignificant changes in certain cases. The results show a satisfactory agreement in iceshape predictions obtained using the developed package with the corresponding datain the literature.


İçindekiler



Açıklamalar



Haklar



Notlar



Kaynakça


Atıf Yapanlar

Gözat Sayfasına Dön

 

Sosyal Medya ve Araçlar

İstatistikler

  • Kayıt
    • Bu ay: 16
    • Toplam: 2433
  • Online
    • Ziyaretçi: 37
    • Üye: 0
    • Toplam: 37

Detaylı İstatistikler