排序方式: 共有27条查询结果,搜索用时 15 毫秒
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考虑风能输入的抛物型缓坡方程 总被引:3,自引:2,他引:1
在Radder和Kirby发展的波浪折射绕射缓坡方程抛物型模型基础上,对这种模型进行了改进,改进后的模型除可以考虑波浪传播过程中的底摩阻损耗、非线性作用外,加入了风能输入对波浪传播的影响。基于风能输入项的波浪模型数值计算结果表明,在纯风浪情况下的计算结果与传统的风浪计算方法结果一致,在波浪传播过程中由于风的作用,将导致波高比无风作用下计算的波高大。 相似文献
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Quantity of bed load is an important physical parameter in sediment transport research. Aiming at the difficulties in the bed load measurement, this paper develops a bottom-mounted monitor to measure the bed load transport rate by adopting the sedimentation pit method and resolving such key problems as weighing and desilting, which can achieve long-time, all-weather and real-time telemeasurement of the bed load transport rate of plain rivers, estuaries and coasts. Both laboratory and field tests show that this monitor is reasonable in design, stable in properties and convenient in measurement, and it can be used to monitor the bed load transport rate in practical projects. 相似文献
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现场波浪观测技术发展和应用 总被引:1,自引:0,他引:1
介绍与海洋工程有关的应用于水下、水面、水上和太空不同空间位置的现场波浪观测技术。根据不同仪器量测的基本原理,分析其对工程应用的适合性和局限性;并讨论了现场波浪观测的发展趋势以及我国应采取的对策。 相似文献
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This paper discusses some previous, and presents some new experimental results on wave transmission oversubmerged breakwaters. The objective of this study is to evaluate wave transmission coefficient and develop two-dimensional (2D) model as an improvement to the existing wave transmission coefficient models. Factors which affect wave transmission over submerged breakwaters are discussed through series of laboratory experiments. Basic recommendations for evaluation and design of submerged rubble-monud breakwaters are presented.From the test results, calculation formula of wave transmission coefficient is proposed. 相似文献
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目前常用的确定性模型试验不能满足海岸工程结构可靠度设计的要求。针对设计波高、周期、作用方向和水位四个水动力因素的不确定性,提出了波浪概率模型试验及其分析方法,供实验室物理和数学模型实验应用。 相似文献
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