Comparative study of symmetrical Vs asymmetrical Vs semi-symmetrical airfoils

Abstract

Airfoils are the cross-section of the wing or blade. Extensive research in the maximum L/D ratio is crucial as faster travel is the need of the hour for developing faster and more efficient aircraft, for the military as well as transportation purposes. Hence to find the best aerodynamic property, we will study the 3 types of airfoils. Through this paper, the intention is to find out the best airfoil which can be applied for use. In this study, the comparison between symmetric, anti-symmetric, and semi symmetric airfoil characteristics are made using ANSYS Fluent. ANSYS Fluent offers us a platform to make simulations. Codes have been fed into the MATLAB software to generate the required coordinates. Airfoil design upholds great importance in modern-day design in aeronautics. The airfoils were designed using NACA guidelines and compared. This paper aims to find the advantages and disadvantages of the 3 different airfoils. The airfoils examined are made using coordinates derived from the NACA 4-digit series. Four different pitch angles were used: 0°, 2°, 4°, 8° to best replicate real-life applications. The main purpose of this is to find which of the 3 airfoils is the best based on Cd and Cl values for different attack angles. The Reynolds Number for each simulation will be the same for uniformity in the experiment. A high value of Reynold’s Number will be taken in the scale 106. Each airfoil cross-section was studied.

Rekonstruksi Sudu Primary Air Fan Pltu Menggunakan Standar Naca

“…Penerapan toleransi profil garis pada setiap section dilakukan pembagian toleransi pada airfoil dimana toleransi pada trailling edge dan leading edge lebih ketat dibandingkan dengan bagian lainnya pada airfoil. Lokasi penetapan toleransi profil garis sesuai dengan lokasi section pada tahap identifikasi profil NACA 4 Digit Series (Thakur & Choudhary, 2020;Thejaraju et al, 2019). Zona toleransi profil garis pada airfoil didapatkan dari jarak pada arah normal dari profil nominal, dimana jarak tersebut adalah besar toleransi yang diberikan (t).…”