Regional Symposium on Innovation in science and technology

Please wait ...

فارسی

Home / دومین سمپوزیوم منطقه ای نوآوری در علم و فناوری

Investigating Effects of sinusoidal leading edge on a lambda-wing UAV at pre-stall angles

Authors :

Amir Hosseinikargar¹ Mohammad Hassan Djavareshkian² Amir Hossein Gholami³

1- Ferdowsi University of Mashhad 2- Ferdowsi University of Mashhad 3- Ferdowsi University of Mashhad

Keywords :

Sinusoidal leading edge،Flying wing،Numerical simulation،Lift-to-drag ratio

Abstract :

This study examines the aerodynamic benefits of implementing a sinusoidal leading edge on a lambda-shaped, subsonic flying wing with a 56-degree sweep angle and -3-degree twist. Numerical simulations, validated by experimental data over angles of attack from -5° to 20°, focused on optimizing lift, drag, and vortex formation. Results show that the sinusoidal leading edge improves the lift-to-drag ratio by approximately 20% within the 5° to 15° range, enhancing range and reducing fuel consumption. Unlike conventional dual-vortex structures, vortices form at each crest along the sinusoidal edge, potentially delaying flow separation at higher angles of attack by adding turbulent energy and promoting lateral reattachment.

List of archived papers

Biodegradation of Deltamethrine in soil by co-culture of Pseudomonas aeruginosa and Rhodococcus pyridinivorans

Neda Sharafi - َAli Makhdoumi - Mohamad Hosein Mahmudy Gharaie - Hosein Ahmadzadeh - Zahra Khamar

Separation of Term-Preterm Birth from Non-pregnant Using Frequency and Nonlinear Analysis of Electrohysterogram Signals

Maryam Khansari - Maryam Khansari - Maryam Khansari

Assessing the severity of the Mashhad-Chenaran aquifer crisis using C/RW, GWD, and GDS indices

Hossein Mohammadzadeh - Atefeh Abbasi - Mahmood Arjomandsharif - Kamran Davari

Patching methods of cardiac patches for treatment of myocardial infarction

Elham Sadat Rahimi - Zeinab Neshati

Comparison of Motion Errors of Surge, Sway and Heave Directions in Synthetic Aperture Sonar Imaging

HAMID HAJIRAHIMI KASHANI - HOOMAN AFSHARI RAD - SEYED ALIREZA SEYEDIN

Optimized Statistical Analysis of Factors Influencing the Growth of Carbon Nanotubes in Chemical Vapor Deposition (CVD) Processes

Elahe Khosravifard - Mohammad Taghi Hamed Mosavian - Morteza Maghrebi

ارائه روش سریع بازسازی واپیچشی فاز با استفاده از مدل برجستگی در تصاویر رادار روزنه مصنوعی

هومن افشاری راد - سید علیرضا سیدین - حمید حاجی رحیمی کاشانی

Compensation of Phase Error Using Efficient Hydrophone Array Arrangement in Synthetic Aperture Sonar

HAMID HAJIRAHIMI KASHANI - HOOMAN AFSHARI RAD - SEYED ALIREZA SEYEDIN

Gene Detection of Some Virulence Factors In Klebsiella Pneumoniae Isolated From UTI

Sara hadi Jassim

Antidiabetic activity of Citrullus colocynthis compounds against glycogen phosphorylase using molecular docking

Zahra Shakeri - Reza Shidpour

more

Samin Hamayesh - Version 44.8.0