Experimental Investigation of the Effect of Hydrophobic Coating on Aerodynamic Parameters of Airfoils

Fevzi Şahin; İsmayil İsmailov; Hakan Özcan

Makale detayları

Experimental Investigation of the Effect of Hydrophobic Coating on Aerodynamic Parameters of Airfoils

Yazarlar:

Fevzi Şahin | İsmayil İsmailov | Hakan Özcan

Yayıncı:

Kirikkale University

Ana Başlıklar:

Mechanical Engineering

Dergi:

International Journal of Engineering Research and Development Vol.15 Issue 1, pp.186-194

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001281373

pISSN:

1308-5506

Anahtar kelimeler:

Özet:

 In this study, an experimental study was carried out on NACA 4418 wing profile. The airfoil was covered with two different materials by spray coating method, the degrees of wetting water droplet contact angle with the surface, θ were determined. The three different surfaces that are as normal θ  59o 90o: hydrophilic, hydrophobic θ  93o 90o and superhydrophobic θ  154o 150o were obtained. For these three different situations, the lift and drag coefficients were determined experimentally in the wind tunnel at a free flow velocity of 15 m  s Re  253.196 and 6 different angle of attack -10 , -5 , 0 , 5 , 10 , 15  and compared with each other. The results showed that when the hydrophobic and superhydrophobic properties to the normal hydrophilic airfoil were introduced, the lift coefficients of airfoil increased by an average of 15 and 23, respectively for all the studied attack angles. In addition, adding hydrophobic and super hydrophobic properties to the normal hydrophilic airfoil decreased the drag coefficients of the airfoil by 12 and 20, respectively for all the studied attack angles.

 In this study, an experimental study was carried out on NACA 4418 wing profile. The airfoil was covered with two different materials by spray coating method, the degrees of wetting water droplet contact angle with the surface, θ were determined. The three different surfaces that are as normal θ  59o 90o: hydrophilic, hydrophobic θ  93o 90o and superhydrophobic θ  154o 150o were obtained. For these three different situations, the lift and drag coefficients were determined experimentally in the wind tunnel at a free flow velocity of 15 m  s Re  253.196 and 6 different angle of attack -10 , -5 , 0 , 5 , 10 , 15  and compared with each other. The results showed that when the hydrophobic and superhydrophobic properties to the normal hydrophilic airfoil were introduced, the lift coefficients of airfoil increased by an average of 15 and 23, respectively for all the studied attack angles. In addition, adding hydrophobic and super hydrophobic properties to the normal hydrophilic airfoil decreased the drag coefficients of the airfoil by 12 and 20, respectively for all the studied attack angles.

 In this study, an experimental study was carried out on NACA 4418 wing profile. The airfoil was covered with two different materials by spray coating method, the degrees of wetting water droplet contact angle with the surface, θ were determined. The three different surfaces that are as normal θ  59o 90o: hydrophilic, hydrophobic θ  93o 90o and superhydrophobic θ  154o 150o were obtained. For these three different situations, the lift and drag coefficients were determined experimentally in the wind tunnel at a free flow velocity of 15 m  s Re  253.196 and 6 different angle of attack -10 , -5 , 0 , 5 , 10 , 15  and compared with each other. The results showed that when the hydrophobic and superhydrophobic properties to the normal hydrophilic airfoil were introduced, the lift coefficients of airfoil increased by an average of 15 and 23, respectively for all the studied attack angles. In addition, adding hydrophobic and super hydrophobic properties to the normal hydrophilic airfoil decreased the drag coefficients of the airfoil by 12 and 20, respectively for all the studied attack angles.

 Bu çalışmada NACA 4418 kanat profile üzerinde deneysel bir çalışma yürütülmüştür. Kanat profili spray kaplama yöntemi ile iki farklı malzeme ile kaplanmış, ıslanırlık derecesi su damlasının yüzey ile temas açısı, θ belirlenmiştir. Normal θ59o90o: hidrofilik, hidrofobik θ93o90o ve süperhidrofobik θ154o150o olmak üzere üç farklı kanat profile yüzeyi elde edilmiştir. Bu üç farklı durum için, kaldırma ve sürüklenme katsayıları, 15 ms Re253.196 serbest akım hızında ve 6 farklı hücum açısında -10, -5, 0, 5, 10, 15 rüzgar tünelinde deneysel olarak belirlenerek birbiriyle karşılaştırılmıştır. Sonuçlar, normal hidrofilik kanat profiline, hidrofobik ve süperhidrofobik özellik kazandırılmasının kanat profilinin kaldırma katsayılarını tüm hücum açıları dikkate alındığında sırasıyla ortalama 15 ve 23 oranında iyileştirdiğini göstermiştir. Ayrıca normal hidrofilik kanat profiline, hidrofobik ve süperhidrofobik özellik kazandırılması kanat profilinin sürüklenme katsayılarını tüm hücum açıları dikkate alındığında sırasıyla ortalama 12 ve 20 oranında düşürmüştür.

Makale detayları

Experimental Investigation of the Effect of Hydrophobic Coating on Aerodynamic Parameters of Airfoils

Yazarlar:

Fevzi Şahin | İsmayil İsmailov | Hakan Özcan

Yayıncı:

Kirikkale University

Ana Başlıklar:

Mechanical Engineering

Dergi:

International Journal of Engineering Research and Development Vol.15 Issue 1, pp.186-194

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001281373

pISSN:

1308-5506

Spray coating

hydrophobic

Superhydrophobic

Lift coefficient

Drift coefficient

Kanat profili

Sprey kaplama

Hidrofobik

Süperhidrofobik

Kaldırma katsayısı

Sürüklenme katsayısı

Sayı

Makale detayları

Yazarlar: Fevzi Şahin | İsmayil İsmailov | Hakan Özcan

Yayıncı: Kirikkale University

Ana Başlıklar: Mechanical Engineering

Dergi: International Journal of Engineering Research and Development Vol.15 Issue 1, pp.186-194

Belge Tipi: Makale

Yayın Tarihi: 1/2023

Belge Dili: Türkçe

Document ID (Org No.): 2001281373

pISSN: 1308-5506

Sayı

Yazarlar:

Fevzi Şahin | İsmayil İsmailov | Hakan Özcan

Yayıncı:

Kirikkale University

Ana Başlıklar:

Mechanical Engineering

Dergi:

International Journal of Engineering Research and Development Vol.15 Issue 1, pp.186-194

Belge Tipi:

Makale

Yayın Tarihi:

1/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001281373

pISSN:

1308-5506