Yıl 2018, Cilt 8, Sayı 1, Sayfalar 47 - 65 2018-06-18

Numerical Investigation of Different Airfoils at Low Reynolds Number in terms of Aerodynamic Performance of Sailplanes by using XFLR5
Numerical Investigation of Different Airfoils at Low Reynolds Number in terms of Aerodynamic Performance of Sailplanes by using XFLR5

İbrahim Halil GÜZELBEY [1] , Yüksel ERASLAN [2] , Mehmet Hanifi DOĞRU [3]

104 133

Kanat tasarımı, tüm hava araçları için olduğu gibi, planörler için de aerodinamik performans açısından kritik öneme sahiptir. Aerodinamik olarak verimli bir planör kanadı tasarımının en önemli aşamalarından biri de uygun kanat kesit geometrisi (kanat profili) seçimidir. Bir kanat tasarımının kanat kesit geometrisi seçimi, öncelikle belirlenen gerekliliklere dayanarak karşılaştırmak üzere, farklı kanat kesit geometrilerinin aerodinamik performans analizlerini gerektirir. Bu çalışmada, dokuz farklı kanat kesit geometrisi planör aerodinamik performansı açısından karşılaştırmak üzere genel kamu lisanslı XFLR5 programı kullanılarak nümerik olarak incelenmiştir. Öncelikle karşılaştırılacak geometriler Eppler, Goettingen, NACA ve Wortmann kanat kesit geometrisi ailelerinden seçilmiştir. Karşılaştırma için programın deneysel verilerle iki boyutlu doğrulaması yapılmış ve seçilen kanat kesit geometrileri aynı koşullar altında analiz edilmiştir. Analizler 2x105 Reynolds sayısında ve -5 ile 20 derece arasındaki hücum açılarında gerçekleştirilmiştir. Analizlerden elde edilen sonuçlara göre kanat kesit geometrileri belirlenen gereklilikler olan kalınlık, maksimum kaldırma katsayısı ve hücum açısı, maksimum kaldırma durumundaki sürüklenme katsayısı, maksimum süzülme oranı, sıfır kaldırma durumundaki yunuslama momenti ve güç faktörüne göre karşılaştırılmıştır.

Wing design has a critical importance for sailplanes as well as for all the aircrafts in terms of aerodynamic performance. One of the important design phases of an aerodynamically efficient sailplane wing is selection of the appropriate airfoil. Airfoil selection of a wing design firstly requires performing aerodynamic performance analyses of different airfoils to compare according to determined requirements. In this study, numerical investigation of nine different airfoils was performed with the aim of comparison in terms of aerodynamic performance of sailplanes by using the general public licensed computer program XFLR5. Firstly, the airfoils which will be compared were selected from Eppler, Goettingen, NACA and Wortmann airfoil families. For the comparison of the airfoils, the two-dimensional analysis validation of the program was done with experimental data, and the airfoils were analyzed in two dimensions under the same validated analysis conditions. The analyses were performed at 2x105 Reynolds number and angle of attacks from -5 to 20 degrees. According to obtained results from the analyses, the airfoils were compared in terms of determined criteria which are thickness, maximum lift coefficient and its angle of attack, maximum drag to lift ratio, drag coefficient at maximum lift condition, pitching moment at zero lift condition and power factor.

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Yazar: İbrahim Halil GÜZELBEY
Kurum: GAZİANTEP ÜNİVERSİTESİ
Ülke: Turkey


Yazar: Yüksel ERASLAN (Sorumlu Yazar)
Kurum: GAZİANTEP ÜNİVERSİTESİ
Ülke: Turkey


Yazar: Mehmet Hanifi DOĞRU
Kurum: GAZİANTEP ÜNİVERSİTESİ
Ülke: Turkey


Bibtex @araştırma makalesi { kfbd423932, journal = {Karadeniz Fen Bilimleri Dergisi}, issn = {1309-4726}, eissn = {2564-7377}, address = {Giresun Üniversitesi}, year = {2018}, volume = {8}, pages = {47 - 65}, doi = {10.31466/kfbd.423932}, title = {Numerical Investigation of Different Airfoils at Low Reynolds Number in terms of Aerodynamic Performance of Sailplanes by using XFLR5}, key = {cite}, author = {GÜZELBEY, İbrahim Halil and ERASLAN, Yüksel and DOĞRU, Mehmet Hanifi} }
APA GÜZELBEY, İ , ERASLAN, Y , DOĞRU, M . (2018). Numerical Investigation of Different Airfoils at Low Reynolds Number in terms of Aerodynamic Performance of Sailplanes by using XFLR5. Karadeniz Fen Bilimleri Dergisi, 8 (1), 47-65. DOI: 10.31466/kfbd.423932
MLA GÜZELBEY, İ , ERASLAN, Y , DOĞRU, M . "Numerical Investigation of Different Airfoils at Low Reynolds Number in terms of Aerodynamic Performance of Sailplanes by using XFLR5". Karadeniz Fen Bilimleri Dergisi 8 (2018): 47-65 <http://dergipark.gov.tr/kfbd/issue/32961/423932>
Chicago GÜZELBEY, İ , ERASLAN, Y , DOĞRU, M . "Numerical Investigation of Different Airfoils at Low Reynolds Number in terms of Aerodynamic Performance of Sailplanes by using XFLR5". Karadeniz Fen Bilimleri Dergisi 8 (2018): 47-65
RIS TY - JOUR T1 - Numerical Investigation of Different Airfoils at Low Reynolds Number in terms of Aerodynamic Performance of Sailplanes by using XFLR5 AU - İbrahim Halil GÜZELBEY , Yüksel ERASLAN , Mehmet Hanifi DOĞRU Y1 - 2018 PY - 2018 N1 - doi: 10.31466/kfbd.423932 DO - 10.31466/kfbd.423932 T2 - Karadeniz Fen Bilimleri Dergisi JF - Journal JO - JOR SP - 47 EP - 65 VL - 8 IS - 1 SN - 1309-4726-2564-7377 M3 - doi: 10.31466/kfbd.423932 UR - http://dx.doi.org/10.31466/kfbd.423932 Y2 - 2018 ER -
EndNote %0 Karadeniz Fen Bilimleri Dergisi Numerical Investigation of Different Airfoils at Low Reynolds Number in terms of Aerodynamic Performance of Sailplanes by using XFLR5 %A İbrahim Halil GÜZELBEY , Yüksel ERASLAN , Mehmet Hanifi DOĞRU %T Numerical Investigation of Different Airfoils at Low Reynolds Number in terms of Aerodynamic Performance of Sailplanes by using XFLR5 %D 2018 %J Karadeniz Fen Bilimleri Dergisi %P 1309-4726-2564-7377 %V 8 %N 1 %R doi: 10.31466/kfbd.423932 %U 10.31466/kfbd.423932
ISNAD GÜZELBEY, İbrahim Halil , ERASLAN, Yüksel , DOĞRU, Mehmet Hanifi . "Numerical Investigation of Different Airfoils at Low Reynolds Number in terms of Aerodynamic Performance of Sailplanes by using XFLR5". Karadeniz Fen Bilimleri Dergisi 8 / 1 (Haziran 2018): 47-65. http://dx.doi.org/10.31466/kfbd.423932