In-Situ Tritium Release Experiment from Solid Breeder γ-LiAlO2 in SWINPC

1995 ◽  
Vol 28 (3P1) ◽  
pp. 550-555 ◽  
Author(s):  
Xiaohua Cao ◽  
Wende Shen ◽  
Jingping Wan ◽  
Huajin Tan ◽  
Yixiang Jiang ◽  
...  
Keyword(s):  
Release Experiment ◽  
Tritium Release

The time dependence of in-situ tritium release from lithium oxide and lithium aluminate (VOM-22H experiment)

1986 ◽  
Vol 141-143 ◽  
pp. 265-270 ◽  
Author(s):  
T. Kurasawa ◽  
H. Watanabe ◽  
G.W. Hollenberg ◽  
Y. Ishii ◽  
A. Nishimura ◽  
...  
Keyword(s):  
Time Dependence ◽  
Lithium Oxide ◽  
Lithium Aluminate ◽  
Tritium Release

Tritium Release Experiment in France Results Concerning HT/HTO Conversion in the Air and Soil

1988 ◽  
Vol 14 (2P2B) ◽  
pp. 1226-1230 ◽  
Author(s):  
Ph. Paillard ◽  
JP. Calando ◽  
H. Clerc ◽  
R. Gros ◽  
Y. Belot
Keyword(s):  
Release Experiment ◽  
Tritium Release

The LISA-2 experiment: In-situ tritium release from lithium orthosilicate (Li4SiO4)

1988 ◽  
Vol 155-157 ◽  
pp. 538-543 ◽  
Author(s):  
H. Werle ◽  
W. Breitung ◽  
M. Briec ◽  
R.G. Clemmer ◽  
H. Elbel ◽  
...  
Keyword(s):  
Lithium Orthosilicate ◽  
Tritium Release

Tritium Release Experiment in France, Presentation, Organization and Realization

1988 ◽  
Vol 14 (2P2B) ◽  
pp. 1222-1225
Author(s):  
Ph. Paillard ◽  
H. Clerc ◽  
JP. Calando ◽  
R. Gros ◽  
B. Hircq
Keyword(s):  
Release Experiment ◽  
Presentation Organization ◽  
Tritium Release

In situ tritium release experiments from solid breeding materials (TTTEx) — Surface reaction on Li2O and LiAlO2 for sweep gases of He + H2 and He + H2O

1991 ◽  
Vol 179-181 ◽  
pp. 867-870 ◽  
Author(s):  
Satoru Tanaka ◽  
Atsushi Kawamoto ◽  
Daiju Yamaki ◽  
Kenji Yamaguchi ◽  
Michio Yamawaki
Keyword(s):  
Surface Reaction ◽  
Tritium Release

scholarly journals Diapycnal motion, diffusion, and stretching of tracers in the ocean

2022 ◽  
Author(s):  
Henri Drake ◽  
Xiaozhou Ruan ◽  
Raffaele Ferrari
Keyword(s):  
Numerical Simulation ◽  
Boundary Layer ◽  
Bottom Boundary Layer ◽  
Small Scale ◽  
Leading Order ◽  
Release Experiment ◽  
Bottom Boundary ◽  
In Situ Diffusion ◽  
Sloping Bottom

Small-scale mixing drives the diabatic upwelling that closes the abyssal ocean overturning circulation. Measurements of in-situ turbulence reveal that mixing is bottom-enhanced over rough topography, implying downwelling in the interior and stronger upwelling in a sloping bottom boundary layer. However, in-situ mixing estimates are indirect and the inferred vertical velocities have not yet been confirmed. Purposeful releases of inert tracers, and their subsequent spreading, have been used to independently infer turbulent diffusivities; however, these Tracer Release Experiments (TREs) provide estimates in excess of in-situ ones. In an attempt to reconcile these differences, Ruan and Ferrari (2021) derived exact buoyancy moment diagnostics, which we here apply to quasi-realistic simulations. We show in a numerical simulation that tracer-averaged diapycnal motion is directly driven by the tracer-averaged buoyancy velocity, a convolution of the asymmetric upwelling/downwelling dipole. Diapycnal spreading, however, involves both the expected contribution from the tracer-averaged in-situ diffusion and an additional non-linear diapycnal stretching term. These diapycnal stretching effects, caused by correlations between buoyancy and the buoyancy velocity, can either enhance or reduce tracer spreading. Diapycnal stretching in the stratified interior is compensated by diapycnal contraction near the bottom; for simulations of the Brazil Basin Tracer Release Experiment these nearly cancel by coincidence. By contrast, a numerical tracer released near the bottom experiences leading-order stretching that varies in time. These results suggest mixing estimates from TREs are not unambiguous, especially near topography, and that more attention should be paid towards the evolution of tracers' first moments.

Sign in / Sign up

Export Citation Format

Share Document