Wind simulation complex for aeroelastic simulations

The Aeroelastic Design Unit, together with The Meteorology Unit, are currently developing a wind simulation package aiming at supplying wind turbine designers with a tool for generation of synthetic wind fields for aeroelastic design computations.

The package will offer a broad spectrum of design relevant wind fields load cases ranging from various forms of atmospheric turbulence fields over extreme load cases to wake affected wind fields.

Presently, a beta version of the package has been launched with the following features:

1. turbulence generator for ”standard” fully 3D Gaussian turbulence based on the Mann spectral tensor;
2. turbulence generator for simulation of homogeneous as well as inhomogeneous turbulence that may have either Gaussian or non-Gaussian characteristics. This algorithm is based on the Shinozuka method and is e.g. intended for use in complex terrain situations;
3. conditional simulation algorithm that is able to reproduce one or more measured (u, v or w) wind time series) in a turbulence field with consistent 2. order statistics. The measured time series may refer to arbitrary spatial points;
4. a constraint simulation algorithm for consistent imbedding of almost arbitrary turbulence driven gust events in a fully 3D Gaussian turbulence field; and
5. a turbulence generator for generation of in-stationary turbulence fields that may in addition be both inhomogeneous and non-Gaussian.