This Website is not fully compatible with Internet Explorer.
For a more complete and secure browsing experience please consider using Microsoft Edge, Firefox, or Chrome

Wing Flutter Simulation using Finite Element Coupled with Lattice Boltzmann Method

This presentation was made at the NAFEMS Eastern European Seminar "Engineering Analysis & Simulation in the Automotive Industry" held on the 7th of November in Bucharest.

Automotive manufacturers and suppliers are constantly challenged with delivering innovative, safe, and dependable vehicles to market as efficiently as possible. As a result, engineering teams must discover, evaluate, and successfully implement leading-edge technology and methods to produce a reliable, effective outcome. Many of these efforts now come together under concepts such as Industry 4.0, Digital Twin, CAE Democratization, and Cloud Solutions. But what do these really mean for you, as a simulation specialist?

Resource Abstract

Flutter of aeroelastic structures refers to the interaction between aerodynamic, inertia, and elastic forces. It is characterized by unstable oscillations at a critical airflow speed. Above that flutter speed, the oscillations grow until the amplitude reaches a value above which the nonlinearities bring the flutter into limit cycle oscillations (LCO). The role of nonlinearities on the flutter boundary depends on the system parameters, airflow conditions, speed, turbulence, gust, etc. This paper will present a nonlinear aeroelastic model of the wing to simulate flutter. The model considers structural nonlinearity as well as fluid flow nonlinearity. Both models are fully coupled. Structure is modelled by Explicit Finite Element Method and flow is modelled by Lattice Boltzmann Method (LBM). In addition to aeroelastic coupling, aerodynamic simulations are performed on rigid fixed wing to compare different flow modelling approaches: CFD and LBM, commercial and Open Source CFD codes, wake and no wake modelling.

Document Details

ReferenceS_Nov_19_Eastern Europe_4
AuthorCastravete. S
LanguageEnglish
TypePresentation
Date 7th November 2019
OrganisationCAELYNX Europe
RegionEastern Europe

Download


Back to Previous Page