Computational analyses such as computational fluid dynamics and computational structural dynamics have made major advances towards maturity as engineering tools. Computational aeroelasticity (CAE) is the integration of these disciplines. As CAE matures, it also finds an increasing role in the design and analysis of aerospace vehicles. This paper presents a survey of the current state of CAE wit...

Abstract There seems to be a lack of clear and systematic understanding physical behavior mechanisms mistuned blade rows, particularly in the context aerodynamic mistuning versus structural (frequency) mistuning. A high-fidelity fully coupled method is desirable investigate vibration characteristics aeroelasticity problems with strong fluid–structure interaction effects, as well effects. In thi...

No AccessTechnical NotesPitfalls of Discrete Adjoint Fixed-Points Based on Algorithmic DifferentiationPedro Gomes and Rafael PalaciosPedro GomesImperial College, London, England SW7 2AZ, United Kingdom*Ph.D. Student, CAGB 308, Department Aeronautics, South Kensington Campus.Search for more papers by this author Palacios https://orcid.org/0000-0002-6706-3220Imperial Kingdom†Professor Computation...

• The interaction between the transient flow and blade structure vibration in a modern low-pressure turbine is analysed using high-fidelity direct numerical simulation method. unsteady downstream wakes are highly influenced by vibration. vortex structures directly associated with Unsteady Reynolds Averaged Navier–Stokes (URANS) models not able to capture separation behaviour of flow. At least 5...

The exploitation of computational fluid dynamics for non linear aeroelastic simulations is mainly based on time domain simulations of the Euler and NavierStokes equations coupled with structural models. Current industrial practice relies heavily on linear methods which can lead to conservative design and flight envelope restrictions. The significant aeroelastic effects caused by nonlinear aerod...

Plant reproduction depends on pollen dispersal. For anemophilous (wind-pollinated) species, such as grasses and many trees, shedding pollen from the anther must be accomplished by physical mechanisms. The unknown nature of this process has led to its description as the 'paradox of pollen liberation'. A simple scaling analysis, supported by experimental measurements on typical wind-pollinated pl...

Article history: Received 11 December 2013 Received in revised form 28 February 2014 Accepted 30 March 2014 Available online 4 April 2014

A new method identifies coupled fluid-structure system with a reduced set of state variables is presented. Assuming that the structural model is known a priori either from an analysis or a test and using linear transformations between structural and aeroelastic states, it is possible to deduce aerodynamic information from sampled time histories of the aeroelastic system. More specifically given...

Abstract. This paper shows high-fidelity fluid–structure interaction (FSI) studies applied to the research wind turbine of WINSENT (Wind Science and Engineering in Complex Terrain) project. In this project, two turbines are going be erected south Germany WindForS complex-terrain test field. The FSI is obtained by coupling CFD URANS–DES code FLOWer multiphysics FEM solver Kratos Multiphysics, wh...

Multiphysics simulation is the core of future engineering design in the aerospace industry. For this to become a production reality, quantum leap breakthroughs are to be achieved, concerning in particular model coupling, error correlations, alert definitions, best usage practices, code verification and code validation. Because problems that are expected to be orders of magnitude larger than cur...