Abstract
Sea Bottom environment in ports and harbors becomes hypoxic or anoxic condition by formation of density stratification during summer season. It is necessary to understand the mixing effect of jet in density stratified field before applying water mixing technologies in actual site.
In this study, we carried out laboratory experiments on the water mixing under density stratified field and we measured the spatial distribution and temporal changes of density by using a LIF method. The results of this study were as follows: (1) It is suggested the possibility that the mixing effect will be able to be prediction by Richardson number about a jet acting on the density stratified field. (2) It is found that to supply a jet in such a way that the extent of the impact of jet becomes widely was effective for the relaxation of density stratified field.
