Real-time prediction of low-level atmospheric turbulence

Ryota Kikuchi, Takashi Misaka, Shigeru Obayashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

An integrated method consisting of a proper orthogonal decomposition (POD)-based reduced-order model (ROM) and a particle filter (PF) is proposed for real-time prediction of low-level turbulence. The proposed method is validated using identical twin experiments of the low-level turbulence case at Shonai airport in Japan. The results of the experiment show ROM with the estimated temporal coefficients by PF reproduces the wind velocity fluctuations similar to those produced by large eddy simulation with much lower computational cost. In addition, the time evolution of the wind field obtained by ROM-PF show that turbulent spatial structure is expressed accurately in comparison with the reference flow field. It is confirmed that the root mean square error of head and crosswind velocities decreased over time by repeating data assimilation.

Original languageEnglish
Title of host publication33rd Wind Energy Symposium
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Electronic)9781624103445
Publication statusPublished - 2015
Event33rd Wind Energy Symposium 2015 - Kissimmee, United States
Duration: 2015 Jan 52015 Jan 9

Publication series

Name33rd Wind Energy Symposium

Other

Other33rd Wind Energy Symposium 2015
CountryUnited States
CityKissimmee
Period15/1/515/1/9

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Mechanical Engineering

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