Aerodynamic Modeling and Simulation of Multi-Lifting Surfaces Based on the Unsteady Vortex Lattice Method

نویسندگان

چکیده

Using the unsteady vortex lattice method based on potential flow theory, a rapid modeling approach is developed for aerodynamic computation of multi-lifting surfaces. Multiple lifting surfaces with different geometric parameters and grid divisions can be quickly integrated meshed object-oriented data structure. The physical influence between was modeled, wake–surface interaction also considered by using built-in core models. trajectory were used to replace pre-calculated downwash superposition boundary condition integration, instantaneous generated directly from kinematic states mesh messages model concerned. Considering direct coupling effect aerodynamics rigid body dynamics, function free flight built medium-fidelity dynamic simulations identifications. proposed high-efficiency simulation process easily applied models any number arbitrary motion modes.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Induced Drag Calculations in the Unsteady Vortex Lattice Method

α angle of attack, rad Γ circulation, m2s−1 λ wake wavelength, m ρ∞ free-stream air density, kgm −3 τ panel tangential vector ω angular velocity, rad s−1 a non-dimensional distance between aerofoil mid-chord and centre of rotation A panel area, m b semi-chord, m ∆b panel span, m B wingspan, m c aerofoil chord, m ∆c panel chord, m C Theodorsen’s function, C(k) = F (k) + iG(k) Cd sectional drag c...

متن کامل

Evaluation of 2-D Aeroelastic Models Based on Indicial Aerodynamic Theory and Vortex Lattice Method in Flutter and Gust Response Determination

Two 2-D aeroelastic models are presented here to determine instability boundary (flutter speed) and gust response of a typical section airfoil with degrees of freedom in pitch and plunge directions. To build these 2-D aeroelastic models, two different aerodynamic theories including Indicial Aerodynamic Theory and Vortex Lattice Method (VLM) have been employed. Also, a 3-D aeroelastic framework ...

متن کامل

Acquiring and Modeling Unsteady Aerodynamic Characteristics

In order to develop and demonstrate a systematic approach to assessing and modeling dynamic characteristics for advanced configurations, a comprehensive dynamic wind tunnel test program was conducted for the F-16 and the F-22 at the 12-ft Vertical Wind Tunnel at WPAFB. Using the recently-developed Multi-Axis Test rig, body-axis forced oscillation, velocityvector steady rotation, and the new com...

متن کامل

Modeling the unsteady aerodynamic forces on small-scale wings

The goal of this work is to develop low order dynamical systems models for the unsteady aerodynamic forces on small wings and to better understand the physical characteristics of unsteady laminar separation. Reduced order models for a fixed, high angle of attack flat plate are obtained through Galerkin projection of the governing Navier-Stokes equations onto POD modes. Projected models are comp...

متن کامل

Time Domain Modeling of Unsteady Aerodynamic Forces on a

The goal of this research is to develop a versatile and fast code to compute the unsteady lift and thrust forces generated by a flapping airfoil and apply it to engineering problems. We consider both plunging and pitching types of motion and develop a time marching simulation based on early work in unsteady aerodynamics. The ability of the code to compute lift and thrust forces is validated aga...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Aerospace

سال: 2023

ISSN: ['2226-4310']

DOI: https://doi.org/10.3390/aerospace10020203