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RISThe Effects of Different Roughness Configurations on Aerodynamic Performance of Wind Turbine Airfoil and Blade
In this research, viscous and turbulent flow is simulated numerically on an E387 airfoil as well as on a turbine blade. The main objective of this paper is to investigate various configurations of roughness to find a ...
Performance Evaluation of External and Mixed Compression Supersonic Air Intakes: Parametric Study
This research computationally evaluates the performance variations of two common types of supersonic air intakes, external and mixed compression, due to changes in the geometries of the intakes as well as some flow conditions. ...
Investigation of Corner Rounding Effects on the Performance of a Supersonic Air Intake
In this research, flow is simulated numerically through and around a mixed-compression intake to investigate effects of corner rounding on intake performance at free stream Mach numbers of 1.8, 2 and 2.2 and at zero degrees ...
Experimental simulation of flapping wings of the black-headed gull in hovering flight
The main objective of this research is to evaluate the effects of the wing bending deflection angle (B.D.A) on thrust force for different flapping frequencies at 10 degree angles of attack (AOA) in hovering flight. Moreover, ...
Wind tunnel tests for Assessment of wing flexibility effects on the aerodynamics of flapping micro aerial vehicle
An experimental setup is prepared in order to evaluate the effects of wing flexibility on lift, thrust and power loading of the flapping wings with bending deflection angle (B.D.A.). Hence, two wings with different ...
Hydrodynamic simulation of an oscillating hydrofoil near free surface in critical unsteady parameter
In this research study, unsteady, viscous and turbulent fluid flow around a plunging hydrofoil is simulated near the water free surface for different submergence depths and oscillation frequencies. The Navier-Stokes (N-S) ...
Improvement of Airfoils Aerodynamic Efficiency by Thermal Camber Phenomenon at Low Reynolds Numbers
In this research, viscous, laminar and steady flow around symmetric and non-symmetric airfoils is simulated in the presence of heat transfer. Navier-Stokes (N-S) equations are discretized by Finite Volume Method (FVM) and ...
Numerical Simulation of a Pitching Airfoil Under Dynamic Stall of Low Reynolds Number Flow
In this research, viscous, unsteady and turbulent fl uid fl ow is simulated numerically around a pitching NACA0012 airfoil in the dynamic stall area. The Navier-Stokes equations are discretized based on the fi nite volume ...
Boundary layer suction for high-speed air intakes: A review
The paper summarizes recent developments in boundary layer suction for high-speed air intakes. Bleed has been efficiently used in supersonic and hypersonic intakes for three primary reasons: to improve the performance of ...
The role of wing bending deflection in the aerodynamics of flapping micro aerial vehicles in hovering flight
Scientists have been improving the aerodynamic performance of flapping micro aerial vehicles by drawing inspiration from birds and insect flight. In this research study, first, the flapping mechanism of the black-headed ...