The impact of aspect ratio on aerodynamic performance and flow separation behavior of a model wing composed from different profiles

Abdulhalim AŞKAN; Selim TANGÖZ

doi:https://doi.org/10.30521/jes.454215

Makale detayları

The impact of aspect ratio on aerodynamic performance and flow separation behavior of a model wing composed from different profiles

Yazarlar:

Abdulhalim AŞKAN | Selim TANGÖZ

Yayıncı:

Erol KURT

Ana Başlıklar:

Mühendislik ve uygulamalı operasyonlar

Dergi:

Journal of Energy Systems 2018 Vol.2 Issue 4, pp.224-237

Belge Tipi:

Makale

Yayın Tarihi:

12/2018

Belge Dili:

İngilizce

Document ID (Org No.):

2000505900

Sıklık:

Aylık

eISSN:

2602-2052

DOI:

https://doi.org/10.30521/jes.454215

Özet:

 


In this study the impact
of aspect ratio on the aerodynamic performances and flow separation behavior
were investigated on a model wing made up four different profiles used to the
wing of the Boeing 737-Classic aircrafts. The experiments were carried out in a
wind tunnel with low speed at different angles of attack ranging from -4° to
40° and at the 200,000 Reynolds number on wing models having different aspect
ratios (0.7-1.3).

It was observed from the experiments and
numerical studies that the changing of the aspect ratio affected the drag and
lift and flow separation. The highest lift/drag ratio has been measured from
the wing having aspect ratio of 1.3 at angle of attack of 70. Moreover,
the airflow was flowed as laminar in the areas near the middle of the wing until
angle of attack of 240. But, the flow was disturbed at wing tip due
to vortex. The separation bubbles have been seen at 24°-320 for all aspect
ratios. In addition, the increase of angle of attack caused the bubbles form
clearly for 1.1 and 1.3 aspect ratios. Finally, the increases in aspect ratio
and in angle of attack have been triggered flow separation.

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Makale detayları

The impact of aspect ratio on aerodynamic performance and flow separation behavior of a model wing composed from different profiles

Yazarlar: Abdulhalim AŞKAN | Selim TANGÖZ

Yayıncı: Erol KURT

Ana Başlıklar: Mühendislik ve uygulamalı operasyonlar

Dergi: Journal of Energy Systems 2018 Vol.2 Issue 4, pp.224-237

Belge Tipi: Makale

Yayın Tarihi: 12/2018

Belge Dili: İngilizce

Document ID (Org No.): 2000505900

Sıklık: Aylık

eISSN: 2602-2052

DOI: https://doi.org/10.30521/jes.454215

Sayı

Yazarlar:

Abdulhalim AŞKAN | Selim TANGÖZ

Yayıncı:

Erol KURT

Ana Başlıklar:

Mühendislik ve uygulamalı operasyonlar

Dergi:

Journal of Energy Systems 2018 Vol.2 Issue 4, pp.224-237

Belge Tipi:

Makale

Yayın Tarihi:

12/2018

Belge Dili:

İngilizce

Document ID (Org No.):

2000505900

Sıklık:

Aylık

eISSN:

2602-2052

DOI:

https://doi.org/10.30521/jes.454215