项目名称: 基于纹理的高质量非稳定场可视化研究
项目编号: No.61303127
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 自动化技术、计算机技术
项目作者: 吴亚东
作者单位: 西南科技大学
项目金额: 23万元
中文摘要: 研究非稳定场中特征结构的可视化方法,对于观测复杂流场(如湍流场)中的不稳定结构等信息具有重要意义。本项目主要研究非稳定场特征结构Streak surface的纹理增强技术。主要研究内容包括:(1)研究基于非稳定场中特征结构(如:漩涡、缠绕等)的Streak surface构造技术,实现流场的特征分析与跟踪;(2)研究采用基于张量场和全变分模型的纹理技术,增强Streak surface中不稳定过程的特征结构,为用户提供更多流场细节;(3)针对Streak surface纹理增强计算量大等问题,研究基于CPU-GPU的混合计算技术,提高非稳定流场数据可视化的计算效率。本项目的实施,将为从事流体计算相关领域的研究人员提供一种方便、高效的可视化分析手段。
中文关键词: 流场可视化;纹理绘制;体绘制;多核并行;GPU加速
英文摘要: It is important for observing the unsteady structure of complex flow field (such as turbulent flow) to study and develop the unsteady flow visualization techniques. Unsteady flow streak surface constructing and enhancing visualization techniques are focused in this proposal. This proposal included three main research contents as follows: (1) According to the characteristics of the flow field,for example swirl and twist, streak surface construction algorithms will be studied; (2) In order to enhance some characters on the constructed streak surface, a texture enhancement technique based on tensor field and total variation model will be studied. (3) The hybrid computing techniques based on CPU and GPU will be discussed to solve the problems stemming from expensive computation during streak surface texture computation. The accomplishment of this scientific research will provide an effective solution to unsteady flow visualization using streak surface.
英文关键词: flow visualization;texture rendering;volume rendering;multi-core parallel;GPU acceleration