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

两个正在进行的研究项目；(1)高温癌症治疗的计算机模拟和(2)大陆架海洋学的流体动力学模拟对高性能图形工作站有着共同的需求——两者都需要构建、显示和操作用于三维有限元分析的复杂几何模型。传统的三维物体的二维投影所施加的限制要求实时进行图形处理，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三维解剖模型作为计算域，用于分析、理解和定义适当的热剂量传递。水动力数值研究的重点是选定的海洋过程，如潮汐和海流及其对温度剖面、营养分布和其他环境因素的影响。复杂水道的详细几何表示，如缅因湾、阿尔博伦海等，是精确模拟所必需的。尽管这两个研究项目所涉及的现象截然不同，但它们都有一个共同的特点，即精细的几何细节对计算结果有重大影响。该行动为购买Silicon-Graphics IRIS图形工作站提供部分支持，该工作站将与塞耶学院数值方法实验室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.