Presidential Faculty Fellow

这项资助的研究将主要集中在燃烧过程计算、数值流体动力学和湍流等领域。这项工作的一个关键特点是无模型模拟湍流反应流动，这是一种与传统的“封闭”湍流分析方法不同的方法。本研究的主要目标是发展对湍流燃烧现象的基本理解，并研究最终应用于实际工业应用的相关问题。总体计划的活动可分为四个主要领域：(1)研究湍流和湍流燃烧物理的基本问题；（二）工业用先进计算工具的开发；(3)研究主动和被动控制随机和谐波强迫以增强或抑制研究燃烧室中的混合；(4)湍流中底栖物种配子、孢子和幼虫浮游生物运输模型的合作研究。在其他产出中，本研究应进一步深入了解与现有湍流模型相关的缺点，并确定更好的方法来改进（相对于当前的湍流闭合方法）技术，以用于实际的湍流燃烧建模。提供什么样的方法最适合于各种类型的湍流问题的指导。此外，上述第三项研究的长期目标是建立用于定义和控制实际燃烧装置中扰动的输入-输出控制装置/算法。而第四项研究对于理解剧烈水运动中沉降和外部施肥的动力学以及对波浪冲刷岩石海岸的生态学建模是非常重要的。

Research on this grant will be mainly centered in the areas of computation of combustion processes, numerical fluid dynamics, and turbulence. A key distinctive feature of the work involves model-free simulation of turbulent reactive flows, an approach divergent from traditional "closure" approaches to turbulence analysis. The major thrust of the research is concerned with development of a basic understanding of turbulent combustion phenomena, with a study of the pertinent issues as regards eventual application to practical industrial applications. The overall planned activities can be divided into four major areas: (1) study of fundamental issues as regards the physics of turbulence and turbulent combustion; (2) development of advanced computational tools for industrial use; (3) study of active and passive control of random and harmonic forcings for enhancement or suppression of mixing in a research combustor; and, (4) collaborative efforts in modeling of transport of gametes, spores, and planktonic of larvae of benthic species in turbulent flows. Among other outputs, this research should provide further insight into shortcomings associated with existing turbulence models and identify better approaches to improved (relative to current turbulent closure approaches) techniques for utilization in practical turbulent combustion modeling, providing guidance as to what types of approaches are most suitable for various classes of turbulent flow problems. In addition, the third study listed above has a long-term goal of establishment of input-output control devices/algorithms for definition and control of disturbances in practical combustion devices, while the fourth study is quite important as regards understanding of the dynamics of settlement and external fertilization in violent water motion and in modeling the ecology of wave-swept rocky shores.