Engineering Research Equipment Grant: 3-D Graphics Work- station

两个正在进行的研究项目；(1)热疗癌症治疗的计算机模拟和(2)大陆架海洋的流体动力学模拟共享对高性能图形工作站的共同需求--两者都需要构造、显示、以及用于三维有限元分析的复杂几何模型的处理。传统的三维对象的二维投影所施加的限制要求实时地进行图形处理，以便验证数据输入和分析数据输出。热疗研究涉及构建人体的三维解剖模型，作为计算域，用于分析、理解和定义足够的热剂量传递。水动力数值研究侧重于特定的海洋过程，如潮汐和洋流及其对温度分布、营养物质分布和其他环境因素的影响。为了进行准确的模拟，需要对缅因湾、阿尔伯兰海等复杂航道进行详细的几何表示。尽管所涉及的现象截然不同，但两个研究项目都有一个共同的特点，即精细的几何细节对计算结果有很大的影响。该行动为购买Silicon-Graphics IRIS图形工作站提供部分支助，该工作站将与塞耶学校数值方法实验室内的现有计算资源联网。

Two on-going research projects; (1) Computer Simulation of hyperthermic Cancer Therapy and (2) Hydrodynamic Simulations of Continental Shelf Oceanography share a common need for high performance graphics workstations - both require the construction, display, and the manipulation of complex geometrical models for three-dimensional finite element analysis. The limitations imposed by conventional two-dimensional projections of three-dimensional objects necessitates that graphical processing occur in real-time in order to verify data input and analyze data output. The hyperthermia research involves the construction of three-dimensional anatomical models of the human body as computational domains which are used to analyze understand and define adequate thermal dose delivery. The hydrodynamic numerical studies focuses on selected oceanographic processes such as tides and currents and their effects on temperature profiles, nutrient distributions as well as other environmental factors. Detailed geometrical representations of the complex waterways, e.g. Gulf of Maine, Alboran Sea, etc., are necessary for accurate simulations. Despite the distinctively different phenomenon involved both research projects share the feature that the fine geometrical details have a major influence on the computed results. The action provides partial support for the purchase of a Silicon-Graphics IRIS graphics workstation which will be networked with the existing computational resources within the Numerical Methods Laboratory of the Thayer School.