Aerodynamic performance

Part 2 book "Aerospace engineering pocket reference" included contents: Mechanics of materials, fluid mechanics, thermodynamics, heat transfer, EM radiation, electric circuits, control systems, aerodynamics, aircraft performance, air‐breathing propulsion, rocket propulsion, orbital mechanics, attitude determination, attitude dynamics,... and other contents.

270p dianmotminh04 12-07-2024 0 0   Download

This study will investigate the effects of VGs and bleeding air on the performance of dump diffusers without the need to change its length and overall size. The study will use a 3D model to discuss the aerodynamic efficiency of the diffuser and propose an optimal solution for the diffuser.

8p vijeff 30-11-2023 7 3   Download

Part 1 of ebook "The motor car: Past, present and future" provides readers with contents including: Chapter 1 - Introduction; Chapter 2 - Body and car architecture; Chapter 3 - Chassis; Chapter 4 - Powertrain; Chapter 5 - The technologies of automobiles; Chapter 6 - Economic figures; Chapter 7 - Regulations; Chapter 8 - Body; Chapter 9 - Chassis;...

330p dangsovu 20-10-2023 7 3   Download

Ebook Interactive Aerospace Engineering and Design: Part 1 presents the following content: A Brief History of Flight; Introduction to Engineering;Aerodynamics; Aircraft Performance; Introduction to Structural Engineering; Aircraft Propulsion; Introduction to Aircraft Stability and Control;...Please refer to the documentation for more details.

180p chankora 16-06-2023 3 0   Download

In marine transportation, aerodynamic performance is important for the ships, especially for the small passenger fast ships. It has affected the service speed, air resistance acting on hull, power energy as well as roll, pitch, yaw and stability of the ships.

9p vicaptainmarvel 21-04-2023 7 3   Download

In this research the effect of ground proximity on the lift, drag and moment coefficients of inverted, two-dimensional aerofoils was investigated. The purpose of the study was to examine the effect ground proximity on aerofoils post stall, in an effort to evaluate the use of active aerodynamics to increase the performance of a race car. The aerofoils were tested at angles of attack ranging from 0° – 135°. The tests were performed at a Reynolds number of 2.16 x 105 based on chord length. Forces were calculated via the use of pressure taps along the centreline of the aerofoils.

144p runthenight07 01-03-2023 7 3   Download

The current research is undertaken by performing Computational Fluid Dynamics (CFD) simulations for a 2D aerofoil fitted with a shock control bump at a transonic flow condition. Reynolds-Averaged Navier-Stokes equation coupled with turbulence models is adopted to solve the flowfield. The bump has a conventional geometric feature which consists of a ramp, a crest and a tail, and it has eight variants for which the designed parameters are reasonably specified according to the compressible aerodynamics theory.

84p runthenight04 02-02-2023 5 2   Download

Morphing wings were once in the common in early aviation however due to a lack of strong and lightweight materials they were abandoned in favour of conventional wings. Due to the recent advances in smart technologies, morphing wings has become of interest in aviation. This paper proposes the use of internal mechanisms to promote morphing in a wing to increase aerodynamic performance as opposed to the smart technologies. To determine the aerodynamic superiority of the morphing wing it was compared to a conventional wing of the same geometry.

187p runthenight04 02-02-2023 6 3   Download

Morphing wings were once in the common in early aviation however due to a lack of strong and lightweight materials they were abandoned in favour of conventional wings. Due to the recent advances in smart technologies, morphing wings has become of interest in aviation. The thesis "Aerodynamic Performance Comparison of a Conventional UAV Wing and a FishBAC Morphing Wing" proposes the use of internal mechanisms to promote morphing in a wing to increase aerodynamic performance as opposed to the smart technologies.

187p runordie3 06-07-2022 5 1   Download

This paper presents the ground effect on the aerodynamic performance of a hawkmoth-like flapping-wing micro air vehicle. An unsteady aerodynamic model based on the potential-flow theory is used to determine the ground effect at several flight conditions. In this research, the program is written in FORTRAN programming language by using OpenMP library for parallel computing.

5p vimelindagates 18-07-2022 9 4   Download

This paper investigates the effects of recirculation channel on the performance of a single-stage transonic axial compressor, NASA Stage 37, such as pressure ratio, adiabatic efficiency, and operating range. Numerical analysis was conducted by solving three-dimensional steady Reynolds-averaged Navier-Stokes equations with the k-epsilon turbulence model.

6p vimelindagates 18-07-2022 5 2   Download

In this paper, we present a research on applying a commercial Computational Fluid Dynamics (CFD) code to determine interaction effect between hull and accommodation on wind drag of a container ship. For the high superstructure and large windward area ships such as container, wind drag acting on hull accounts for a large amount of total resistance.

10p vielonmusk 21-01-2022 10 1   Download

The purpose of the research is to determine and compare the impact of some factors on aerodynamic drag force during the inflation of a parachute. The canopy’s shape (flat circular type and extended skirt 10% flat type), of the length of suspension lines (be in proportion to nominal diameter from 0.6 to 1.5) are considered. Measurement of the drag force of the parachute models is carried out in an open return wind tunnel.

8p spiritedaway36 28-11-2021 6 1   Download

In this paper, a robust hierarchical method for trajectory tracking control of a quadrotor unmanned aerial vehicle (UAV) subjected to parameter uncertainties and external disturbances is presented. A robust control scheme based on a fast nonsingular terminal sliding mode strategy is designed to achieve fast response and excellent tracking accuracy. Moreover, a radial basis function artificial neural network with online adaptive schemes to estimate unknown aerodynamic parameters and external disturbances is developed to improve the control performance and reduce the chattering phenomenon.

6p cothumenhmong11 05-05-2021 15 3   Download

This study describes an effectively analytic methodology to investigate the aerodynamic performance of H vertical axis wind turbine (H-VAWT). An in-house code based on double multiple stream tube theory (DMST) coupled with dynamic stall and wake correction is implemented to estimate the power coefficient. Design optimization of airfoil shape is conducted to study the influences of the dynamic stall and turbulent wakes.

10p nguaconbaynhay10 20-02-2021 14 1   Download

Knowledge about the morphological adaptations of body and wing in birds helps to know about their aerodynamic performance. The present study was aimed to analyze the morphometry of the wing of the blue and yellow macaw (Ara ararauna) with reference to aerodynamics. Various aerodynamic measurements namely body weight, body length, wing span, wing area, wing load and aspect ratio were measured in three adult male birds. The wings were short, elliptical and rounded.

4p angicungduoc8 07-11-2020 21 2   Download

In this paper, a commercial CFD code, ANSYS-Fluent has been used to investigate the effect of mesh number generated in the computed domain on the CFD aerodynamic performances of a container ship. A full-scale model of the 1200TEU container ship has been chosen as a reference model in the computation. Five different mesh numbers for the same dimension domain have been used and the CFD aerodynamic performances of the above water surface hull of the ship have been shown.

11p trinhthamhodang8 20-10-2020 20 2   Download

Ebook "Understanding Flight (Second Edition)" present the content: principles of flight, wings, stability and control, airplane propulsion, high-speed flight, airplane performance, aerodynamic testing, helicopters and autogyro, structures, basic concepts, misapplication of Bernoulli’s principle.

314p kethamoi8 09-10-2020 30 1   Download

Introduction to aircraft flight mechanics - Performance, static stability, dynamic stability, and classical feedback control: Part 1 present content a review of basic aerodynamics; a review of basic propulsion; aircraft performance; aircraft equations of motion; aircraft static stability; linearizing the equations of motion; aircraft dynamic stability.

404p kethamoi6 01-07-2020 11 3   Download

The main objective of this review is to show the reader the importance of the proper choice of an aero profile and its influence for the calculation during the design of rotor blades and the performance of hydrokinetic turbines.

12p lucastanguyen 01-06-2020 12 1   Download