SGER: Exploratory Investigation into the Wave Disc Engine Principle

SGER：波盘发动机原理的探索性研究

• 批准号: 0746263
• 负责人: Norbert Mueller
• 金额: $ 2万
• 依托单位: Michigan State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2008-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0746263&HistoricalAwards=false
• 关键词: SGER; Exploratory; Investigation; into; Wave

Proposal Number: CBET-0746263 Principal Investigator: Mueller, Norbert H. Affiliation: Michigan State UniversityProposal Title: SGER: Exploratory Investigation into the Wave Disc Engine PrincipleThe PI proposes to use analytical and numerical models to investigate fluid behavior in wave-disc engines, particularly for a novel micro-scale engine. In these wave engines, external or internal combustion generates a shock wave that can enhance combustion and transmit energy similar to that between the turbine and compressor in a regular gas turbine. However, wave engines appear to offer higher efficiency with fewer moving parts than in conventional turbines. Conventional steady-state turbomachinery loses efficiency as it shrinks in size due to wall effects on convective flow velocities, and the proposed micro-wave engine would not suffer such losses. In this exploratory work, a new analytical model will be created and then validated using a commercial computational fluid dynamics software package, FLUENT(R). An unsteady-flow model will be combined with classical turbomachinery principles, including jet propulsion at the channel outlets. In the wave engine, the wave rotor is the sole source of energy for the system; therefore, the channels must extract energy from the flow in order for the rotor to spin and produce power. The technical challenge is to combine Euler?s equation for turbomachinery with shock-wave and duct-flow principles in order to produce a model that predicts energy transfer in the system accurately. The overall goal of the research is to develop increased understanding of the principles that govern micro-scale turbomachinery and micro-scale unsteady-flow devices. In addition to enhanced efficiencies for microscale engines, devices such as the wave engine may be used in future to create electrical power. These devices could replace batteries or allow compact, mobile power generation units including such as for hybrid cars.

提案编号：CBET-0746263 首席研究员：Mueller, Norbert H. 所属机构：密歇根州立大学 提案标题：SGER：波盘发动机原理的探索性研究 PI 建议使用分析和数值模型来研究波盘发动机中的流体行为，特别是新型微型发动机。 在这些波发动机中，外部或内部燃烧产生冲击波，可以增强燃烧并传输能量，类似于常规燃气轮机中的涡轮机和压缩机之间的能量传输。 然而，与传统涡轮机相比，波浪发动机似乎能够以更少的运动部件提供更高的效率。由于对流速度的壁效应，传统的稳态涡轮机会因尺寸缩小而失去效率，而所提出的微波发动机不会遭受这种损失。在这项探索性工作中，将创建一个新的分析模型，然后使用商业计算流体动力学软件包 FLUENT(R) 进行验证。 非定常流模型将与经典涡轮机械原理相结合，包括通道出口处的喷射推进。在波浪发动机中，波浪转子是系统的唯一能源；因此，通道必须从水流中提取能量，以便转子旋转并产生动力。技术挑战是将涡轮机械的欧拉方程与冲击波和管道流原理相结合，以生成准确预测系统中能量传递的模型。 该研究的总体目标是加深对微型涡轮机械和微型非定常流装置的控制原理的理解。 除了提高微型发动机的效率之外，未来还可以使用波浪发动机等设备来产生电力。 这些设备可以取代电池或允许紧凑的移动发电装置，包括用于混合动力汽车的发电装置。