Essays about: "active aerodynamic"

Showing result 1 - 5 of 8 essays containing the words active aerodynamic.

  1. 1. Active flow control of the turbulent boundary layer over a NACA4412 wing profile for skin friction drag reduction

    University essay from KTH/Teknisk mekanik

    Author : Giacomo Semprini Cesari; [2023]
    Keywords : Active flow control; drag reduction; numerical simulations; turbulent boundary layer; wings;

    Abstract : In the context of building a framework for active flow control of turbulent boundary layers in wings, a set of large-eddy simulation (LES) are implemented in OpenFOAM. The flow around a NACA4412 wing profile is simulated at 5° angle of attack and Re_c = 400˙000. READ MORE

  3. 2. Improvement of the 1D CFD method for Thermal management of a Battery Electric Vehicle

    University essay from Linköpings universitet/Mekanisk värmeteori och strömningslära

    Author : SASHWAT CHHETRI; [2022]
    Keywords : CFD; Electromobility; BEV; Thermal Management; Simulation;

    Abstract : Electrification of vehicles is necessary to combat greenhouse gas emissions, whichcauses global warming and climate change. There has been a demand in the use ofBattery Electric Vehicles due to this increased awareness of sustainability. However,they have been beset with issues such as range and conservation of energy. READ MORE

  4. 3. Numerical Study on Aerodynamic Drag Reduction on a Rear Wing of a Formula Student Car

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Mahim Ahsan; [2021]
    Keywords : ;

    Abstract : The importance of aerodynamics in racing has increased substantially over the past decades. Racing vehicles utilize different aerodynamic devices, to redirect the airflow around the vehicle in a beneficial way. The increase in downforce using an aerodynamic wing package increases drag force. READ MORE

  5. 4. Load Control Aerodynamics in Offshore Wind Turbines

    University essay from KTH/Kraft- och värmeteknologi

    Author : Lorenzo Cantoni; [2021]
    Keywords : Wind Turbine; Offshore; Blade; Rotor; Computational Fluid Dynamics; Airfoil; Aerodynamic; Aeroelasticity; Simulation; Fluid; Structure; Interaction; Loads; Control; Response; Harmonics; Vibration; Damping; Flutter; Trailing Edge; Flaps; Wind Gust; Lift; Drag; Unsteady; Pressure; Velocity; Vindkraftverk; offshore; blad; rotor; beräkningsvätske-dynamik; flygplatta; aerodynamisk; aeroelasticitet; simulering; vätska; struktur; interaktion; belastningar; kontroll; respons; övertoner; vibrationer; dämpning; fladdring; bakkant; klaffar; vindstöt; lyft; Drag; ostadig; tryck; hastighet;

    Abstract : Due to the increase of rotor size in horizontal axis wind turbine (HAWT) during the past 25 years in order to achieve higher power output, all wind turbine components and blades in particular, have to withstand higher structural loads. This upscalingproblem could be solved by applying technologies capable of reducing aerodynamic loads the rotor has to withstand, either with passive or active control solutions. READ MORE

  6. 5. Numerical Simulation of Sabot Discard Projectile

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Karl Karlsson; [2020]
    Keywords : CFD; Sabot; Simulation; Fluid Mechanics;

    Abstract : When designing an armour piercing kinetic energy projectile with a discarding sabot, it is important to know how the projectile is affected by the sabot during the discard. If the projectile has no active guiding systems, small disturbances to the initial flight path of the projectile can result in a significant deviance from its intended target. READ MORE