FN Archimer Export Format
PT J
TI A comprehensive assessment of turbulence at a tidal-stream energy site influenced by wind-generated ocean waves
BT 
AF Thiébaut, Maxime
   Filipot, Jean-Francois
   Maisondieu, Christophe
   Damblans, Guillaume
   Duarte, Rui
   Droniou, Eloi
   Chaplain, Nicolas
   Guillou, Sylvain
AS 1:1;2:1;3:2;4:1;5:1;6:3;7:4;8:5;
FF 1:;2:;3:PDG-REM-RDT-LCSM;4:;5:;6:;7:;8:;
C1 France Énergies Marines, Technopôle Brest-Iroise, 525 Avenue Alexis de Rochon, 29280, Plouzané, France
   IFREMER, ZI Pointe du diable, 29280, Plouzané, France
   DynamOcean SARL, 57 Rue de Metz, 56000, Vannes, France
   iXblue, 46 Quai François Mitterand, 13600, La Ciotat, France
   Normandie Univ, UNICAEN, LUSAC, EA4253, Site Universitaire de Cherbourg, Rue Louis Aragon, BP 78, 50130, Cherbourg-Octeville, France
C2 FRANCE ENERGIES MARINES, FRANCE
   IFREMER, FRANCE
   DYNAMOCEAN SARL, FRANCE
   IXBLUE, FRANCE
   UNIV NORMANDIE, FRANCE
SI BREST
SE PDG-REM-RDT-LCSM
IN WOS Ifremer UPR
   copubli-france
   copubli-univ-france
IF 7.147
TC 34
UR https://archimer.ifremer.fr/doc/00592/70394/68478.pdf
LA English
DT Article
CR HYD2M
DE ;Turbulence;Tidal energy;Wave;Doppler noise;ADCP;Alderney Race
AB Velocity measurements collected by an upward-looking acoustic Doppler current profiler were used to provide the first study of ambient turbulence in Alderney Race. Turbulence metrics were estimated at mid-depth during peak flooding and ebbing tidal conditions. The dissipation rate ε and the integral lengthscale (L) were estimated using two independent methods: the spectral method and the structure function method. The spectral method provided ε and (L) estimates with standard deviations twice lower than that obtained from the structure function method. Removal of wave and Doppler noise-induced bias when estimating the dissipation rate was shown to be a crucial step in turbulence characterization. It allowed for a significant refining in (L) estimates derived from the spectral and structure function methods of 35 and 20 respectively. The integral lengthscale was found to be 2–3 times the local water depth. It is considered that these findings could be valuable for current turbine designers, helping them optimizing their designs as well as improving loading prediction through the lifetime of the machines. 
PY 2020
PD JAN
SO Energy
SN 0360-5442
PU Elsevier BV
VL 191
UT 000509791500068
DI 10.1016/j.energy.2019.116550
ID 70394
ER

EF