Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
Flow over rough topography. A preliminary study with high resolution topography at Ormen Lange
 

Summary: Flow over rough topography. A preliminary study
with high resolution topography at Ormen Lange

.
Helge Avlesen

Jarle Berntsen

November 2001
Abstract
Ormen Lange is an offshore gas field located in the Storegga region on the
Norwegian west coast. The field is located at the sea bed with the depth varying
from 600m to 1100m. In this report we focus on the current conditions just above
a 400x400m large square located at approximately 670m depth, by doing simu-
lations with a sigma co-ordinate ocean model. We apply a horizontal resolution
of 4m, which is extremely high for this class of models. In the vertical we use a
resolution gradually increasing from 2m up to 50m in the top layer, with more than
60 percent of the points for the lowest 100meters.
We found the model to give reasonable and realistic response to the topog-
raphy by using large horizontal viscosities for the momentum equations, but we

  

Source: Avlesen, Helge - Bergen Center for Computational Science, Universitetet i Bergen

 

Collections: Geosciences