一种快速实现计算流动显示的算法

计算流动显示是近年来在流体力学领域出现的一个新的研究方向,是计算流体力学,实验流体力学,科学计算可视化等领域的结合。本文介绍了实验流体力学中光学流动显示原理,并由此原理提出了由计算流场生成干涉图、纹影图及阴影图的方法,最后给出了一种快速的基于光线投射方法的光线跟踪算法。

A Fast Algorithm for Computational Flow Imaging

Computational flow imaging is a new field of research in computational flow dynamics. It combines computational and experimental flow dynamics, together with visualization techniques. In this paper, we describe the basic principle of optical flow visualization in experimental flow dynamics and according to this principle a method to construct interferogram, schlieren, and shadowgraph by computational flow field is proposed. In the end we give a new algorithm of ray tracing stemming from ray casting with high efficiency.