SGER: Exploratory Investigation into the Wave Disc Engine Principle

提案编号：CBET-0746263主要研究者：Mueller， Norbert H.隶属关系：密歇根州立大学提案标题：SGER：对波盘发动机原理的探索性调查PI建议使用分析和数值模型来调查波盘发动机中的流体行为，特别是对于一种新型的微尺度发动机。在这些波浪发动机中，外部或内部燃烧产生激波，可以增强燃烧并传递能量，类似于普通燃气轮机中涡轮和压气机之间的能量。然而，与传统涡轮机相比，波浪发动机似乎用更少的运动部件提供了更高的效率。由于壁面对对流速度的影响，传统的稳态涡轮机械在体积缩小时效率会下降，而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。非定常流动模型将与经典的涡轮机械原理相结合，包括通道出口的喷气推进。在波浪发动机中，波浪转子是系统的唯一能量来源；因此，通道必须从流动中提取能量，以便转子旋转并产生动力。技术上的挑战是结合欧拉？利用激波原理和管道流动原理对涡轮机械的S方程进行求解，以便建立一个能准确预测系统能量传递的模型。该研究的总体目标是提高对控制微尺度涡轮机械和微尺度非定常流动装置的原理的理解。除了提高微型发动机的效率外，诸如波浪发动机之类的设备将来可能用于产生电力。这些设备可以取代电池，或允许小型移动发电装置，包括混合动力汽车。

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.