BRIGE: Experimental Analysis of Vortex Flow in Porous Media

BRIGE：多孔介质中涡流的实验分析

• 批准号: 1227930
• 负责人: Fatemeh Hassanipour
• 金额: $ 17.43万
• 依托单位: University of Texas at Dallas
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-09-01 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1227930&HistoricalAwards=false
• 关键词: BRIGE; Experimental; Analysis; Vortex; Flow

PI: HassanipourProposal Number: 1227930A vast number of natural and man-made materials are solids that contain pores (voids), for example rocks, soil, biological tissues, cements, ceramics, etc. These porous media are used in many areas of applied science and engineering including filtration, soil mechanics, petroleum engineering, bioengineering, etc. The static properties of porous media have been studied intensively for many decades, but the understanding of dynamic interactions of fluids with porous media remains an important area of investigation that can yield critical and much-needed improvements to applications in health care, environment, and various other areas of engineering. The challenges in this area arise from the complex internal structure of a porous medium, together with the highly nonlinear dynamic behavior of fluids. The proposed activity involves the construction of a carefully conceived experimental apparatus that facilitates precise and repeatable experiments involving (dynamic) vortex flows and porous media. Key difficulties are addressed, firstly by a high-precision vortex generator devised in the PI's lab that is controlled by a computer, whose software is also developed in-house. This will allow the generation of a variety of velocity profiles for the fluid to an unprecedented level of precision. Secondly, a synthetic porous medium will be constructed whose optical refractive index is matched to the fluid, thus making it transparent and allowing observation and measurement of the flow by planar laser-induced fluorescence.Intellectual Merits of the proposed activity involves the investigation of fundamental scientific questions regarding vortex flows in porous media, namely uncovering the effect of (a) porosity, (b) permeability, (c) fluid density and viscosity, (d) injection velocity, pressure, pulse duration, and frequency on the behavior of fluid pattern separation, accumulation, and transport phenomena of vortex flow within the porous medium. This research is well motivated by preliminary results and will be conducted with a new and unique experimental setup for measurements and visualization of vortex flows in porous media. The interaction of vortex flows with porous media and their transport through porous media is a new direction that can potentially be transformative.Broader Impacts: This proposal benefits the society by contributions to the advancement of many processes and devices that are critically important to our well being due to their effect on healthcare (biomedical devices), the environment (underground flows), and agriculture (erosion, grain drying and conditioning), among others. The results of this research will be widely disseminated through the web, via conferences,as well as seminars. This research will be integrated with educational activities via new courses, by providing research opportunities for undergraduates in their required (capstone) design projects, as well as K-12 outreach via collaboration with HI-TECCC (High-Technology Education Coalition of Collin County). The proposed activity includes a carefully crafted broadening participation plan that has two main components: one targeting individuals with disability, and the other targeting under-represented minorities and women. The PI has created an accessible lab environment and has collaboration with UTD Office of Accessibility to make research positions available to disabled students. The PI also has an active, consistent, and successful track record in recruiting, retaining, and graduating female and minority students.

PI: HassanipourProposal Number: 1227930A vast number of natural and man-made materials are solids that contain pores (voids), for example rocks, soil, biological tissues, cements, ceramics, etc. These porous media are used in many areas of applied science and engineering including filtration, soil mechanics, petroleum engineering, bioengineering, etc. The static properties of porous media have been studied intensively for many几十年来，但是对流体与多孔媒体的动态相互作用的理解仍然是一个重要的调查领域，可以对医疗保健，环境和其他工程的各个领域的应用产生关键和急需的改进。 该区域的挑战来自多孔介质的复杂内部结构，以及流体的高度非线性动态行为。 提出的活动涉及建造精心构想的实验设备，该设备有助于涉及（动态）涡流流和多孔介质的精确且可重复的实验。首先，由PI实验室中设计的高精度涡流发生器解决了关键困难，该发电机由计算机控制，该计算机也在内部开发了其软件。这将使流体的各种速度曲线生成前所未有的精度。其次，将构建一种合成多孔介质，其光学折射率与流体相匹配，从而使其透明，并允许通过平面激光诱导的荧光对流量进​​行观察和测量。所提出的活动的智能优点。渗透性，（c）流体密度和粘度，（d）注射速度，压力，脉冲持续时间以及流体模式分离，积累和涡流流动的转运现象的频率。这项研究是由初步结果充分激励的，将通过一种新的独特的实验设置进行，用于测量和可视化多孔介质中的涡流流。 The interaction of vortex flows with porous media and their transport through porous media is a new direction that can potentially be transformative.Broader Impacts: This proposal benefits the society by contributions to the advancement of many processes and devices that are critically important to our well being due to their effect on healthcare (biomedical devices), the environment (underground flows), and agriculture (erosion, grain drying and conditioning), among others.这项研究的结果将通过网络，会议和研讨会广泛传播。这项研究将通过新课程与教育活动相结合，通过与HI-TECCC（Collin County的高科技教育联盟）合作为本科生提供研究机会，并为本科生提供研究机会。拟议的活动包括精心制作的扩大参与计划，该计划具有两个主要组成部分：一个针对残疾人，另一个针对代表性不足的少数民族和妇女。 PI创建了一个可访问的实验室环境，并与UTD访问办公室合作，使残疾学生可以使用研究职位。 PI在招募，保留和毕业的女学生方面还具有积极，一致且成功的记录。