Sökning: "Roughness sublayer"

Hittade 2 uppsatser innehållade orden Roughness sublayer.

1. 1. Effects of a Forest Clearing: Experimentaland Numerical Assessment

   Master-uppsats, KTH/Mekanik

   Författare :Tetsuya Nakamura; [2013]
   Nyckelord :;

   Sammanfattning : There is a renewed interest in the wind estimate over and around forest areas dueto the increasing demand of wind-energy resources. Many researches have been donewith simplied forest models. LÄS MER

3. 2. Luftens strömning i och över en skog – Utvärdering av en ’mixing-layer’ hypotes

   Magister-uppsats, Uppsala universitet/Luft-, vatten- och landskapslära

   Författare :Johan Arnqvist; [2009]
   Nyckelord :Mixing-layer; Canopy; Wind profile; Kelvin-Helmholtz waves; Roughness sublayer; Nyckelord: Mixing-layer; Canopy; Vindprofil; Skog; Kelvin-Helmoltz-vågor; Roughness sublayer;

   Sammanfattning : A new theory for predicting the windprofile over a canopy has been evaluated. The theory was first presented by Harman and Finnigan (2007). The theory relies on the forming of a mixing-layer above the canopy, due to different mean wind in and above the canopy. LÄS MER