Celeris Base: An interactive and immersive Boussinesq-type nearshore wave simulation software

We introduce our interactive and immersive coastal wave simulation software, Celeris Base, which is the successor to Celeris Advent. Celeris Base is an open source software developed in the Unity3D game engine and in C# language. It supports an interactive environment and allows users to view the simulations in a virtual reality headset. Celeris Base solves the same equations as Celeris Advent, the extended Boussinesq equations, using our hybrid finite volume–finite difference method. These equations are solved on the GPU using compute shaders, written in HLSL. Celeris Base has several new features such as 360°video capturing, geographic map overlays, built-in real-time gauge plotters, etc. It also improves the implementation of the sponge layer boundary condition by introducing new damping equations. Celeris Base is designed and implemented using the best software engineering practices in the hope that it will be a base for further developments of the Celeris software series by researchers around the globe. We validate Celeris Base against experimental results in this paper.

我们推出了一款交互式沉浸式海岸波浪模拟软件Celeris Base，其作为Celeris Advent的后续迭代版本。Celeris Base是基于Unity3D游戏引擎与C#语言开发的开源软件，支持交互式运行环境，用户可通过虚拟现实头显查看模拟结果。该软件采用我们提出的有限体积-有限差分混合方法，求解与Celeris Advent一致的扩展布辛涅斯克方程；上述方程通过采用HLSL编写的计算着色器，在图形处理器（GPU）上完成求解。Celeris Base新增多项功能，涵盖360°视频采集、地理地图叠加、内置实时测站绘图工具等；同时通过引入新型阻尼方程，优化了海绵层边界条件的实现方案。Celeris Base遵循最优软件工程实践进行设计与实现，以期为全球科研人员后续开发Celeris软件系列提供基础框架。本文通过对照实验结果对Celeris Base进行了有效性验证。