Title:
WIND STRESS COEFFICIENT EXPRESSION METHOD AND SYSTEM COMPREHENSIVELY CONSIDERING INFLUENCES OF WIND SPEED, FETCH, AND WATER DEPTH
Document Type and Number:
WIPO Patent Application WO/2021/227565
Kind Code:
A1
Abstract:
The present invention relates to the field of wind–wave-flow numerical simulation research. Disclosed are a wind stress coefficient expression method and system comprehensively considering influences of the wind speed, the fetch, and the water depth. Two dimensionless numbers, i.e., the fetch Froude number and the fetch Reynolds number, capable of representing the wind-wave-flow action intensity are constructed on the basis of a wind-wave-flow coupling action mechanism of water areas such as a lake and an ocean; a wind stress coefficient expression form comprising an undetermined coefficient is established; and then by combining experimental and actually measured data, the undetermined coefficient is obtained by using a nonlinear regression method to obtain the final wind stress coefficient expression. The present invention overcomes the disadvantage that the conventional wind stress coefficient expression only considers the influence of the single factor of the wind speed, and breaks the limitation that it is difficult for the conventional wind stress coefficient expression to adapt to the lake numerical simulation. A Lake Taihu water level verification result shows that the constructed wind stress coefficient expression has good rationality and great superiority. The present invention can be widely popularized in the field of wind–wave-flow numerical simulation research of water areas such as a lake and an ocean.
Inventors:
WU SHIQIANG (CN)
WU XIUFENG (CN)
GAO ANG (CN)
WU CHENHUI (CN)
DAI JIANGYU (CN)
WANG FANGFANG (CN)
ZHANG YU (CN)
XU ZHUN (CN)
YANG QIANQIAN (CN)
YU LEI (CN)
WU XIUFENG (CN)
GAO ANG (CN)
WU CHENHUI (CN)
DAI JIANGYU (CN)
WANG FANGFANG (CN)
ZHANG YU (CN)
XU ZHUN (CN)
YANG QIANQIAN (CN)
YU LEI (CN)
Application Number:
PCT/CN2021/074176
Publication Date:
November 18, 2021
Filing Date:
January 28, 2021
Export Citation:
Assignee:
NANJING HYDRAULIC RES INST (CN)
International Classes:
G06F30/20; G06T17/00; G06F119/14
Foreign References:
| CN111723461A | 2020-09-29 | |||
| CN109815608A | 2019-05-28 | |||
| CN103810330A | 2014-05-21 |
Other References:
LI GUOQING, GAO YAN-QIU;ZHANG JI-CAI: "Adjoint Parameter Estimation of Time-Varying Wind Drag Coefficient for An EKMAN Model", OCEANOLOGIA ET LIMNOLOGIA SINICA, CN, vol. 50, no. 5, 30 September 2019 (2019-09-30), CN , pages 979 - 993, XP055866057, ISSN: 0029-814X, DOI: 10.11693/hyhz20190100029
Attorney, Agent or Firm:
NANJING TAIPU PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
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