ARTICLE INFO ABSTRACT Swept wings are widely used in commercial Aircraft's to cruise at transonic... more ARTICLE INFO ABSTRACT Swept wings are widely used in commercial Aircraft's to cruise at transonic speeds with drag comparatively less than straight wings at transonic speed conditions. On the other hand trainer aircrafts both for commercial and defence trainings are preferred with swept wings to attain higher critical Mach speeds which is very less in straight wing trainer Aircraft's. Swept wings are preferred for its high lift to drag ratio low speed takeoff conditions and for near sonic flight operating conditions. Much research work on swept wings were done in past and many more are being carried out by different research centres around the globe and aircraft manufacturer's, but still the performance and aerodynamics of swept wings at transonic speeds and under different Turbulence levels and conditions is a grey area which needs to be addressed. In this paper two different configuration of swept wing (30 0 and 40 0 sweep) is analyzed and presented for two different Transonic speeds of 0.7 Mach and 0.9 Mach. The 3D wing model analyzed and presented in this paper is of NACA2412 profile. The lift and drag coefficient of this 3d wing at 0 0 AOA and at 4 0 AOA is tabulated in this paper for two of sweep angles 30 0 and 40 0. K-ω SST Turbulence model is used with Ansys Fluent as CFD software. The wing model is analyzed at four different Turbulence intensity levels of 2%, 5%, 10% and 15% and the results are tabulated. Pressure plot and Mach number plot of wing at symmetric section is shown at 0 0 and 4 0 AOA and at different operating speeds of 0.7 and 0.9Mach. High altitude environment conditions are considered for this analysis since the commercial aircraft and defence trainer aircrafts are meant to operate at high altitudes. Also an overview of the Swept wing flow instabilities and flow transitions are briefed in this paper.
Light aircraft are being used widely for passenger and freight transport nowadays. In this paper ... more Light aircraft are being used widely for passenger and freight transport nowadays. In this paper aerodynamics of a trainer aircraft's 3d wing with NACA 2412 aerofoil is presented. The lift and drag coefficient of the 3d wing at different angle's of attack plots of flow parameters like velocity, pressure and path lines are given. In this work kω sst Turbulence model is used to analyze the flow around the 3d wing of the trainer aircraft considering nominal wind t considered taking symmetry in to account. Fuselage is not considered in this work since the objective of this work is to predict the performance of wing alone. Trainer 240km/hr is simulated to compute lift and drag coefficients of the wing at different angle of attacks.
Light aircraft are being used widely for passenger and freight transport nowadays. In this paper ... more Light aircraft are being used widely for passenger and freight transport nowadays. In this paper aerodynamics of a trainer aircraft's 3d wing with NACA 2412 aerofoil is presented. The lift and drag coefficient of the 3d wing at different angle's of attack plots of flow parameters like velocity, pressure and path lines are given. In this work kω sst Turbulence model is used to analyze the flow around the 3d wing of the trainer aircraft considering nominal wind t considered taking symmetry in to account. Fuselage is not considered in this work since the objective of this work is to predict the performance of wing alone. Trainer 240km/hr is simulated to compute lift and drag coefficients of the wing at different angle of attacks.
Aircraft's both for combat and civil purpose work under different environment conditions, especia... more Aircraft's both for combat and civil purpose work under different environment conditions, especially when it is a combat Aircraft or a jet trainer it will be more often subjected to high level of turbulence due to max manoeuvring and shorter runway takeoff operations. The environment conditions at which civil and combat aircraft operates are unpredictable and will change from one location to other based on weather and climate conditions. In this paper the lift and drag coefficient of a finite 3D wing of a subsonic Aircraft is presented at transonic speed conditions and at different turbulence intensity levels. 3D wing is of NACA 2412 profile. The results obtained by this work on subsonic wing can be used to compare the performance of this subsonic wing with respect to performance of Transonic and supersonic wings. A overview of Transonic aerodynamics and the Turbulence model used is presented in this paper. This subsonic wing is analyzed using K-ω SST Turbulence model and for two different AOA of 0 0 and 4 0. The Mach number of flow over the wing and the pressure plot at the wing symmetric plane at different aircraft speed and at different turbulence intensity levels are discussed in this paper. CFD software Ansys Fluent is used to analyze the aircraft wing at two different AOA and at two different transonic speeds.
ARTICLE INFO ABSTRACT Swept wings are widely used in commercial Aircraft's to cruise at transonic... more ARTICLE INFO ABSTRACT Swept wings are widely used in commercial Aircraft's to cruise at transonic speeds with drag comparatively less than straight wings at transonic speed conditions. On the other hand trainer aircrafts both for commercial and defence trainings are preferred with swept wings to attain higher critical Mach speeds which is very less in straight wing trainer Aircraft's. Swept wings are preferred for its high lift to drag ratio low speed takeoff conditions and for near sonic flight operating conditions. Much research work on swept wings were done in past and many more are being carried out by different research centres around the globe and aircraft manufacturer's, but still the performance and aerodynamics of swept wings at transonic speeds and under different Turbulence levels and conditions is a grey area which needs to be addressed. In this paper two different configuration of swept wing (30 0 and 40 0 sweep) is analyzed and presented for two different Transonic speeds of 0.7 Mach and 0.9 Mach. The 3D wing model analyzed and presented in this paper is of NACA2412 profile. The lift and drag coefficient of this 3d wing at 0 0 AOA and at 4 0 AOA is tabulated in this paper for two of sweep angles 30 0 and 40 0. K-ω SST Turbulence model is used with Ansys Fluent as CFD software. The wing model is analyzed at four different Turbulence intensity levels of 2%, 5%, 10% and 15% and the results are tabulated. Pressure plot and Mach number plot of wing at symmetric section is shown at 0 0 and 4 0 AOA and at different operating speeds of 0.7 and 0.9Mach. High altitude environment conditions are considered for this analysis since the commercial aircraft and defence trainer aircrafts are meant to operate at high altitudes. Also an overview of the Swept wing flow instabilities and flow transitions are briefed in this paper.
Light aircraft are being used widely for passenger and freight transport nowadays. In this paper ... more Light aircraft are being used widely for passenger and freight transport nowadays. In this paper aerodynamics of a trainer aircraft's 3d wing with NACA 2412 aerofoil is presented. The lift and drag coefficient of the 3d wing at different angle's of attack plots of flow parameters like velocity, pressure and path lines are given. In this work kω sst Turbulence model is used to analyze the flow around the 3d wing of the trainer aircraft considering nominal wind t considered taking symmetry in to account. Fuselage is not considered in this work since the objective of this work is to predict the performance of wing alone. Trainer 240km/hr is simulated to compute lift and drag coefficients of the wing at different angle of attacks.
Light aircraft are being used widely for passenger and freight transport nowadays. In this paper ... more Light aircraft are being used widely for passenger and freight transport nowadays. In this paper aerodynamics of a trainer aircraft's 3d wing with NACA 2412 aerofoil is presented. The lift and drag coefficient of the 3d wing at different angle's of attack plots of flow parameters like velocity, pressure and path lines are given. In this work kω sst Turbulence model is used to analyze the flow around the 3d wing of the trainer aircraft considering nominal wind t considered taking symmetry in to account. Fuselage is not considered in this work since the objective of this work is to predict the performance of wing alone. Trainer 240km/hr is simulated to compute lift and drag coefficients of the wing at different angle of attacks.
Aircraft's both for combat and civil purpose work under different environment conditions, especia... more Aircraft's both for combat and civil purpose work under different environment conditions, especially when it is a combat Aircraft or a jet trainer it will be more often subjected to high level of turbulence due to max manoeuvring and shorter runway takeoff operations. The environment conditions at which civil and combat aircraft operates are unpredictable and will change from one location to other based on weather and climate conditions. In this paper the lift and drag coefficient of a finite 3D wing of a subsonic Aircraft is presented at transonic speed conditions and at different turbulence intensity levels. 3D wing is of NACA 2412 profile. The results obtained by this work on subsonic wing can be used to compare the performance of this subsonic wing with respect to performance of Transonic and supersonic wings. A overview of Transonic aerodynamics and the Turbulence model used is presented in this paper. This subsonic wing is analyzed using K-ω SST Turbulence model and for two different AOA of 0 0 and 4 0. The Mach number of flow over the wing and the pressure plot at the wing symmetric plane at different aircraft speed and at different turbulence intensity levels are discussed in this paper. CFD software Ansys Fluent is used to analyze the aircraft wing at two different AOA and at two different transonic speeds.
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