Numerical study of the behavior of heated water discharged into the ocean - Part 2: Parameter dependence

Takeshi Matsuno, Yutaka Nagata

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Matsuno and Nagata (1987) showed numerically that the spreading characteristics of the discharged heated water from power plants of existing scale is significantly influenced by the earth's rotation effect. Although the effect of the enhancement of the Coriolis parameter on the spreading characteristics of the formed warm water mass was discussed in order to demonstrate the rotation effect, other parameters such as the density difference between the discharged heated water and ambient water and the vertical eddy viscosity and diffusivity were fixed. In this paper, the dependence of the spreading characteristics on these parameters is examined. Then, it is shown that the overall shape of the formed warm water mass and density and velocity structure strongly depend on these parameters. Also, it is indicated that the behavior of the warm water mass under the rotation effects is too complicated to be described with a few parameters. For example, the internal radius of deformation seems to be one of the determinative parameters, and the increase of the density difference between discharged water and ambient water has a similar effect on the shape of the formed warm water mass as a decrease of the Coriolis parameter. However, a change of the two values has different effects on the detailed density structure and current structure of the warm water mass. The Prandtl number seems to determine some aspects of the veloczty field such as velocity magnitude and width of the southward flowing current zone. However, other features such as the thickness of the warm water mass are not determined by the Prandtl number.

Original languageEnglish
Pages (from-to)34-44
Number of pages11
JournalJournal of the Oceanographical Society of Japan
Volume45
Issue number1
DOIs
Publication statusPublished - Feb 1989
Externally publishedYes

Fingerprint

warm water
water mass
oceans
ocean
Water
water
Prandtl number
Earth rotation
parameter
velocity structure
diffusivity
effect
power plant
eddy
viscosity
power plants
Power plants
Earth (planet)
Viscosity

All Science Journal Classification (ASJC) codes

  • Oceanography

Cite this

Numerical study of the behavior of heated water discharged into the ocean - Part 2 : Parameter dependence. / Matsuno, Takeshi; Nagata, Yutaka.

In: Journal of the Oceanographical Society of Japan, Vol. 45, No. 1, 02.1989, p. 34-44.

Research output: Contribution to journalArticle

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