三维场景中截面流场绘制技术研究  

Technical research on cross-section flow drawing in 3-D scene

作　　者：康苏海[1,2] 金生[1] 刘洋[3] 

机构地区：[1]大连理工大学海岸和近海工程国家重点实验室,大连116024 [2]交通运输部天津水运工程科学研究所工程泥沙交通行业重点实验室,天津300456 [3]天津市南港工业区开发有限公司,天津300456

出　　处：《水道港口》2011年第5期361-366,共6页Journal of Waterway and Harbor

摘　　要：回顾以往三维流场显示中的平面式截面流场绘制方法,分析其表现方式的不足,提出置于三维场景中的截面流场显示方式。通过对水平及垂直截面的生成算法和截面流场投影算法的研究,找出适应于复杂边界和地形条件下的高效截面生成算法;基于WPF三维图形平台,以灵活的示踪粒子布设方式,采用C#编程语言编制软件予以实现;将标量场数据作为截面显示材质,实现了截面附加标量场;截面流场模拟可以动态跟踪水位变化,在场景中同时对多个水平或垂直截面流场进行模拟,丰富了对流场三维特性的表现。By the way of reviewing the previous method of simulation to the cross-section current field,lack of previous method was pointed out.Then a new method called 3-D cross flow which recommended placing the cross-section into the 3-D scene was proposed.Efficient algorithms of cross-section generation with complex boundary and terrain were found out by intensive studies on generating algorithm to horizontal and vertical cross-sections and flow field projection.Based on WPF graphics platform,3-D flow simulation software was programmed with C# language,it was used to process 3-D flow data using a flexible way of tracer-particle distribution.Meanwhile scalar field was achieved through the textures of cross-sections.Cross-section flow simulation could trace the water level changes,simulate multiple flow sections including horizontal and vertical plane.It greatly facilitated the cognitive ability to 3-D flow characteristics.

关 键 词：三维流场 截面流场 仿真模拟 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]