How fine is fine enough when doing CFD terrain simulations

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

284 Downloads (Pure)

Abstract

The present work addresses the problemof establishing
the necessary grid resolution to obtain
a given level of numerical accuracy using
a CFD model for prediction of flow over terrain.
It is illustrated, that a very high resolution may
be needed if the numerical difference between
consecutive refinements should be of the order
of one percent for all flow directions. For
the present terrain case, resolution in the order
of 1 billion grid points is needed.
Original languageEnglish
Title of host publicationProceedings of EWEA 2012 - European Wind Energy Conference & Exhibition
Number of pages6
PublisherEuropean Wind Energy Association (EWEA)
Publication date2012
Pages1167-1172
Publication statusPublished - 2012
EventEWEA 2012 - European Wind Energy Conference & Exhibition - Copenhagen, Denmark
Duration: 16 Apr 201219 Apr 2012
http://events.ewea.org/annual2012/

Conference

ConferenceEWEA 2012 - European Wind Energy Conference & Exhibition
CountryDenmark
CityCopenhagen
Period16/04/201219/04/2012
Internet address

Keywords

  • Computational Fluid Dynamics
  • Terrain
  • Siting
  • Grid Refinement

Cite this

Sørensen, N. N., Bechmann, A., Réthoré, P-E., Cavar, D., Kelly, M. C., & Troen, I. (2012). How fine is fine enough when doing CFD terrain simulations. In Proceedings of EWEA 2012 - European Wind Energy Conference & Exhibition (pp. 1167-1172). European Wind Energy Association (EWEA).