Abstract
This paper reports on a laboratory experiment in the CNRM-GAME (Toulouse) stratified
water flume of a stably stratified boundary layer, in order to quantify the momentum transfer
due to orographically induced gravity waves by gently undulating hills in a boundary layer
flow. In a stratified fluid, a surface corrugation is towed with different speeds to cover a range
of Froude numbers. PIV measurements are used to quantify the flow field which is divided in a
mean flow, a wave component and turbulent component. In addition wave drag divergence
over the boundary layer is investigated. The experimental results aim to improve formulations
for turbulent heat and momentum transfer for use in numerical weather prediction, climate
models and ocean models
Original language | English |
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Publication status | Published - 2014 |
Event | HYDRALAB IV Joint User Meeting, Lisbon, Portugal - Duration: 2 Jul 2014 → 4 Jul 2014 |
Conference/symposium
Conference/symposium | HYDRALAB IV Joint User Meeting, Lisbon, Portugal |
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Period | 2/07/14 → 4/07/14 |