考虑根茎叶的近岸植物对海啸波消减实验研究

doi:10.11978/2016127

Abstract

Abstract:

In this study, we experimentally investigated the interaction of tsunami wave with coastal vegetation based on theoretical analysis. Tsunami wave and coastal vegetation were modeled by solidary wave and vegetation model including root, stem and crown, respectively. Effects of root, stem, crown, and distribution density on tsunami wave attenuation were analyzed. Results showed that tsunami wave dissipation was affected by root, stem and crown to different degrees. Transmission coefficient changes were functions of the combination of relative wave height, relative height of root, relative height of stem, relative height of crown, relative width, and distribution density. A dimensionless equation was derived to characterize the inherent relationships between characteristic of wave attenuation and factors of hydrodynamics and vegetation. The purpose of this paper was to provide scientific guidance for minimizing the impact of tsunami wave on coastal regions.

Key words: tsunami wave, coastal vegetation, wave attenuation, root, stem, crown

HE Fei, CHEN Jie, JIANG Changbo, ZHAO Jing. Experimental investigation on tsunami wave attenuation under the effects of coastal vegetation with root, stem and crown[J].Journal of Tropical Oceanography, 2017, 36(5): 9-15.

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References 15

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序号	模型	实验水深h/cm	入射波波高 H/cm	植物分布密度ψ
模型1	树干	25.0	5.0, 7.0, 9.0, 12.0	0.0099
		30.0
		35.0
		45.0
模型2	树干+ 根部	25.0
		30.0
		35.0
		45.0
模型3	树干+ 冠部	25.0
		30.0
		35.0
		45.0
模型4	根部+树干+冠部	25.0
		30.0
		35.0
		45.0
模型5	根部+树干+冠部	25.0		0.0063
		30.0
		35.0
		45.0
模型6	根部+树干+冠部	25.0		0.0040
		30.0
		35.0
		45.0
模型7	根部+树干+冠部	25.0		0.0032
		30.0
		35.0
		45.0

模型	模型参数ψ	C_V/%
模型1	0.0099	2.23
模型2	0.0099	2.64
模型3	0.0099	11.60
模型4	0.0099	11.00
模型5	0.0063	7.37
模型6	0.0040	6.78
模型7	0.0032	5.44

Experimental investigation on tsunami wave attenuation under the effects of coastal vegetation with root, stem and crown

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