Aerospace Science and Technology
Experimental investigation of vortical flow induced by canard on a diamond wing equipped with LEX

Mohammad Reza Hashemi; Seyyed Majid Malek Jafarian; Mojtaba Dehghan Manshadi

Articles in Press, Accepted Manuscript, Available Online from 29 December 2023

https://doi.org/10.22034/jast.2023.417448.1160

Abstract
  In this research, the effects of canard flow on a diamond wing equipped with LEX, same as new-generation fighters, have been investigated, using a closed-circuit wind tunnel. All tests were performed at a speed of 12.5 meters per second, which is equivalent to Reynolds number 214000 based on model length. ...  Read More

Aerospace Science and Technology
Experimental Investigation of the Effects of Leading-Edge Serration on the Blades of Savonius Wind Turbine

Sahel Alasvand; Mostafa Kazemi; Mahmood Mani

Volume 17, Issue 1 , June 2024, , Pages 1-8

https://doi.org/10.22034/jast.2023.398694.1150

Abstract
  The noise of wind turbines is mainly of aerodynamic origin and is caused by the impact of the flow on the turbine blade. Therefore, improving the behaviour of the flow around the turbine and reducing aeronoise can result in reducing its annoying noise. In the first step of this research, a suitable serration ...  Read More

Aerospace Science and Technology
Experimental Investigation of using Plasma Actuators as Virtual Gurney Flap

Bahareh Mojarrad; Saeed Oveisi; Mostafa Kazemi; Mahmoud Mani

Volume 14, Issue 1 , June 2021, , Pages 103-110

https://doi.org/10.22034/jast.2021.297217.1085

Abstract
  The primary objective of this study was to demonstrate how plasma actuators could be used to discharge a perpendicular dielectric barrier as a virtual Gurney flap. This study utilized wind tunnel experiments on a flat plate airfoil. Each experiment is conducted at two different free flow velocities of ...  Read More

Experimental Comparison of Thrust Performance of Two Low and Medium-Speed Motors by Wind Tunnels and Obtaining the Flight Time of a Specific Drone

A. Hossein Gholami; Mohammad Haeri; Ali Reza Doodman Tipi

Volume 13, Issue 1 , June 2020, , Pages 10-17

https://doi.org/10.22034/jast.2020.119909

Abstract
  With the advancement of science and technology, ultra-light drones with electric propulsion hold many applications. In these drones, the electric motor is the primary consumer of energy. Thus, having an accurate model of power consumption of the motor, propeller, and battery set can play an essential ...  Read More

An Experimental Investigation of the Effects of Canard Position on the Aerodynamic Forces of a Fighter Type Configuration Model

M. Manshadi; A. Sharafi; M.H. Soltani

Volume 9, Issue 2 , September 2012, , Pages 15-24

Abstract
  An extensive experimental investigation is conducted to study the effect of canard position relative to the fuselage reference line on the aerodynamic forces of a fighter type configuration model. Aerodynamic forces at different flight conditions are measured in a subsonic wind tunnel. The wing and the ...  Read More

Effect of Wing Sweep Angle on the Vortex Interaction of a Tail-Wing Configuration

Bahman Jahromi; M.R. Soltani; M. Masdari

Volume 9, Issue 1 , March 2012

Abstract
  The goal of this investigation is to study the effect of wing sweep angle on the horizontal wing-body- tail configurations in subsonic flow. For this purpose, a series of wind tunnel tests were conducted on a model having a moveable horizontal tail and a wing planform with different sweep angles. Tests ...  Read More

Wind Tunnel Investigation of Pressure Distribution and Transition Position of a Swept 3D Wing

Mohammad Reza Dr. Soltani; M. Masdari; M. Seidjafari; Kaveh Ghorbanian

Volume 7, Issue 2 , September 2010, , Pages 132-137

Abstract
  Extensive wind tunnel tests are conducted to evaluate surface pressure distribution of a semi span swept wing. The wing section has a laminar flow airfoil similar to NACA 6-series airfoils. The investigations are conducted at various speeds and angles of attack. Surface pressure distribution over the ...  Read More