基于分形融合FBM的海浪模型研究

海浪模拟作为非线性模拟代表方向之一。国内外研究划分为两种派系,由此产生的各种单一模型都不能满足逼真、快速和可控的需求。提出了一种新的改进海浪模型。该模型融合了分形的分数布朗运动曲面模型,以及经典的线性叠加浪谱Gerstner模型;并通过两种模型产生高度场的权重比值,来对海浪模拟进行调节和控制。实验证明,新模型生成的海浪逼真度高,能够产生大面积海面,改变视点,可以通过人为参数设定改变海浪海况;与经典模型相比,具有计算效率好、逼真度高、可控性好的优点,说明新模型在海浪模拟模型研究方面具有一定的改善。

A Ocean Wave Simulation Research Based On Fractal fusion FBM Model

Ocean wave simulation as a nonlinear simulation represents the direction of one, the domestic and foreign research is divided into two factions. There is no single model can meet the realistic, fast and controllable needs. This paper presents an improved model. This model compromises FBM model and classical Gerstner model, and adjusts the ocean by the weight ratio of two height fields. Experiments show that, the model produces vivid widespread ocean wave, changes view point and the sea. Compared with those model, the model has faster computation, more realistic ocean wave and easy to control.