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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >IWAVE: An ocean simulation model for internal waves
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IWAVE: An ocean simulation model for internal waves

机译：IWAVE：内部波浪的海洋模拟模型

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摘要

Effective usage of scarce resources (ships, instruments, etc.) requires a coherent and rational approach to develop any underwater system. One of the important tasks towards achieving this is to simulate the performance of the proposed system under all oceanic conditions before it is being developed. Internal waves (IWs) play major role in ocean thermodynamics, underwater acoustic transmission, etc. In order to understand the behaviour of IWs and their role in various physical processes in the ocean, we have developed an IW model, IWAVE based on the Garrett-Munk modal spectrum. In this communication detailed implementation procedures of the model and also a technique to solve the eigenvalue problem accurately are presented. An algorithm based on central finite difference and QR techniques was implemented to find the eigen-wave-numbers and modes (dispersion relations). IWAVE simulates temperature and salinity (estimated sound speed also) structure due to IWs in the ocean. Experiments were conducted to validate the model off the west coast of India. Variances of the measured and simulated sound speed are in good agreement.
机译：有效利用稀缺资源（船舶，工具等）需要采取连贯合理的方法来开发任何水下系统。实现此目标的重要任务之一是在开发之前，模拟拟议系统在所有海洋条件下的性能。内波（IW）在海洋热力学，水下声传输等方面起着重要作用。为了了解IW的行为及其在海洋中各种物理过程中的作用，我们开发了一种基于Garrett-IW的IW模型，即IWAVE。蒙克模态谱。在本次交流中，提出了模型的详细实现过程以及准确解决特征值问题的技术。实施了基于中心有限差分和QR技术的算法，以找到特征波数和模式（色散关系）。 IWAVE模拟海洋中IW引起的温度和盐度（也估计声速）结构。进行了实验以验证印度西海岸附近的模型。测量的和模拟的声速的方差很好。

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