Fundamental and Applied Studies in Combustion

这项研究计划的目的是促进我们对燃烧在与社会和工业相关的领域中的基本理解。具体项目有： 项目A--侧风中含有非碳氢化合物液滴的耀斑的排放：在全球范围内，能源行业每年燃烧约1390亿立方米的天然气，据信有越来越多的部分含有非碳氢化合物液体，如用于提高石油产量的“水力压裂液”。这些系统的排放基本上是未知的。主要的研究问题是确定当耀斑暴露在侧风中时，释放剧毒氯代烃的氯基流体的命运。 项目B--预混火焰的产生/销毁在模拟高达科勒数流动的燃速中的作用：我们对非定常流动和燃速之间的相互作用的现象学理解不如对定常火焰那样好。大多数用于供暖和发电的实际火焰都是湍流的，因此它们充满了不稳定。不稳定的一种形式是制造和摧毁火焰。这项研究的目的是确保这些不稳定的影响在预混火焰的燃烧速度中得到适当的考虑。 项目C-池边边界条件对浅池火灾的影响：液态碳氢化合物作为燃料、溶剂和食用油在储存、处理和使用它们的社会中普遍存在。由于它们的易燃性和造成损害的可能性，了解意外点火引起的燃烧非常重要。尽管影响深远，但池边条件在设定燃烧速度方面的作用基本上是未知的。这项研究解决了这一缺点，并探索了新的抑制技术的选择。

The objective of this research program is to advance our fundamental understanding of combustion in areas that have applied relevance to society and industry. The specific projects are: Project A - Emissions from Flares that Contain Non-Hydrocarbon Droplets in Crosswinds: Worldwide, the energy industry flares approximately 139 billion cubic meters of gas annually, and an increasing portion is believed to contain non-hydrocarbon liquids, such as "fracking fluids" used to enhance oil production. The emissions from such systems are essentially unknown. The principal research issue is to determine the fate of the chlorine-based fluids in emitting highly toxic chlorinated hydrocarbons when the flare is exposed to crosswinds. Project B - Role of the Creation/Destruction of Premixed Flame in Modeling Burning Rates for High Damkohler Number Flows: Our phenomenological understanding the interactions between unsteady flows and burning rates is not as well developed as for steady flames. Most practical flames for heating and power production are turbulent, so they are rife with unsteadiness. One form of unsteadiness is to create and destroy flame. The objective of this study is to ensure that these unsteady effects are properly accounted for in the burning rate of premixed flames. Project C - Effects of Poolside Boundary Conditions on Shallow Pool Fires: Liquid hydrocarbons as fuels, solvents and cooking oils are ubiquitous in society where they are stored, handled, and used. Due to their flammability and potential for causing damage, it is important to understand the combustion resulting from accidental ignition. Despite their profound effects, the role of poolside conditions in setting the rate of combustion is essentially unknown. This study addresses this shortcoming, as well as explores options for novel suppression techniques.