CISE Research Instrumentation Program

将获得一个彩色图形工作站，包括附件和软件，以推进研究项目，所有涉及大规模多维科学计算，计算流体动力学，物理学，非线性光学和生物学。一个研究项目将使用计算机可视化和动画来理解复杂流体流动的大规模模拟，为这些问题开发良好的数值方法，并将这些结果传播给科学界。这些问题包括流体流动中拓扑转变和奇点形成（涡重连和气泡形成）的计算和建模，以及具有表面张力的多相流的计算。另一个研究项目将应用计算机图形学来研究心脏的计算机模拟。它将用于构建和改进心脏模型，调试代码，将结果计算机实验可视化，将模拟结果与实验观察结果进行比较，并将结果传达给他人。理解心脏模型需要同时可视化可变形结构及其包含的流体，所有这些都需要对大量数据的快速操作。第三个项目将对二维非定常流场中的磁性结构进行数值研究。在大磁雷诺数下，与拉伸流动中快速发电机作用相关的小尺度结构将被确定，并与理论发电机模型进行比较。对场强进行颜色编码，并利用约60帧/循环的视频序列研究场强演变，应该可以直接确定场强放大的机制。最后，研究将进行计算研究，以解决当前三维非线性光学系统的空间复杂性问题。一项计算研究是非横向坍缩系统中自聚焦激光束非线性演化的数学模型。在某些情况下，光束轮廓发展成多个细丝，通过完全三维计算机可视化，这些精细交织的光学结构的实验观察将大大增强。*** ECEXE @ j i SSMARQUESCR @ j B SSMYST SCR @ j L SSSTARS SCR @ j D TADA WAV @ j &amp； L TARTAN BMP @ j 4 v TERMINALEXE @ j E B TERMINALHLP @ j 9320154 Shelley A彩色图形工作站，包括配件和软件，将用于推进研究项目； | ^ ' o q \ ^ w | $$ $ G | |时代符号“Helvetica Chicago Times New Roman & Arial 5 Courier New R ZapfDingbats Palatino Greek GenMath MathMeteor MT Extra”ee 4 Shelley/NYU Mark Purvis Mark Purvis

9320154 Shelley A color graphics workstation, with accessories and software, will be acquired to advance research projects, all involving large-scale multi-dimensional scientific computation, in computational fluid dynamics, physics, nonlinear optics, and biology. One research project will use computer visualization and animation to comprehend large-scale simulations of complex fluid flows, develop good numerical methods for such problems, and to disseminate these results to the scientific community. These problems include computation and modeling of topology transitions and singularity formation in fluid flows (vortex reconnection and bubble formation), and computation of multi-phase flows with surface tensions. Another research project will apply computer graphics to research on computer simulation of the heart. It will be used to construct and improve the heart model, to debug the code, to visualize the resulting computer experiments, to compare the simulational results with experimental observations, and to communicate the results to others. Comprehending the heart model involves simultaneous visualization of a deformable structure and the fluid it contains, all requiring the rapid manipulation of massive amounts of data. A third project will make numerical studies of magnetic structures in two-dimensional unsteady flow fields. At large magnetic Reynolds numbers, small-scale structures associated with fast dynamo action in stretching flows will be identified, and comparisons made with theoretical dynamo models. Color-coding of field strength and studying the field evolution using videotaped se quences at about 60 frames/cycle, should allow direct determination of the mechanism of field amplification. Finally, research will be done on computational investigations addressing current issues of spatial complexity in 3-d nonlinear optical systems. One computational study is of mathematical models for the nonlinear evolution of self-focused laser beams in systems which do not display transverse collapse. In some cases, the beam profiles develop multiple filaments, corroborating experimental observations of these finely-interwoven optical structures will be considerably enhanced by fully three-dimensional computer visualizations. *** ECEXE @ j i SSMARQUESCR @ j B SSMYST SCR @ j L SSSTARS SCR @ j D TADA WAV @ j & l TARTAN BMP @ j 4 v TERMINALEXE @ j E B TERMINALHLP @ j 9320154 Shelley A color graphics workstation, with accessories and software, will be acquired to advance research projects, | ^ ` o q \ ^ w | $ $ $ G | | Times Symbol " Helvetica Chicago Times New Roman & Arial 5 Courier New R ZapfDingbats Palatino Greek GenMath MathMeteor MT Extra " e e 4 Shelley/NYU Mark Purvis Mark Purvis