English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Lifting water artificially to form an upwelling is considered as a promising way to recover the ocean fishery environment. In order to discuss the feasibility of practical application in theory, the theoretical water lifting system with temperature difference in vertical tubes on large scales was studied by numerical simulation in this paper. Results show that an effective upwelling can be observed in the vertical tube on modeling scales. The characteristic ascending speed varies quite differently for different range of ambient temperature. It is very hard to form an effective upwelling inside the long vertical tube with a big diameter under a very low power and a relative high ambient temperature. In certain cases with fixed tube diameter, the increases of the ambient temperature and the heating power are both favorable for lifting more water from subsurface to the surface. The upwelling in vertical tube benefits from smaller tube diameter under low heating power. But for high heating power, the tube with larger diameter will have better ability to lift more water. In studied cases, a theoretical maximum flow rate of 8.8m/s could be got for water lifting from the depth of 115m. Therefore the technology of artificial water lifting via temperature difference is promising for future application.

SIMULATION OF FLOW FIELD IN THEORETICAL WATER LIFTING SYSTEM WITH TEMPERATURE DIFFERENCE IN VERTICAL TUBES ON LARGE SCALES