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UNS: Investigations on Hydrodynamic and Diffusional-thermal Flamefront Instabilities

UNS: Investigations on Hydrodynamic and Diffusional-thermal Flamefront Instabilities
UNS:流体动力学和扩散热火焰前不稳定性的研究
批准号:
1510142
负责人:
Chung Law
金额:
$27.7万
依托单位:
依托单位国家:
美国
项目类别:
Standard Grant
财政年份:
2015
资助国家:
美国
项目状态:
已结题
起止时间:
2015-06-01 至 2018-05-31

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英文摘要
1510142 (Law)The project aims to better understand how burning of fuel-air mixture takes place under high-pressure and very turbulent conditions, similar to those in an engine. The Principal Investigator has recently developed an experimental method that enables obtaining data with very high resolutions that was not previously available. The data can help explain the behavior of combustion and potentially help design energy-efficient combustion devices. Both graduate and undergraduate students will be involved in the proposed research and the knowledge gained will be published and taught in the classroom.The proposed study is aim to differentiating the effects due to hydrodynamic and diffusive-thermal instabilities, especially under high pressures (60-80 atmospheres). Because of the reduced flame thickness with increasing pressure, hydrodynamic instability is relevant to high-pressure reciprocating and gas turbine combustion engines. The interest to increase the compression ratio and thereby combustion efficiency of these engines further accentuates the preponderance of the hydrodynamics instability. The PI designs the laminar flame conditions for investigation, but these conditions will impact, with possible revisions to, the classical turbulent premixed regime diagram. Newly developed diagnostic tools with high temporal and spatial resolutions will help to obtain high-quality data that allows validations of the proposed hypothesis.
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2019 Princeton Summer School on Combustion
  • 批准号:
    1836853
  • 项目类别:
    Standard Grant
  • 资助金额:
    $4.95万
  • 财政年份:
    2019
  • 负责人:
    Chung Law
  • 依托单位:
An investigation on flame-front instability in laminar and turbulent flames
  • 批准号:
    1827287
  • 项目类别:
    Standard Grant
  • 资助金额:
    $29.25万
  • 财政年份:
    2018
  • 负责人:
    Chung Law
  • 依托单位:
2018 Princeton Summer School on Combustion
  • 批准号:
    1811150
  • 项目类别:
    Standard Grant
  • 资助金额:
    $4.95万
  • 财政年份:
    2018
  • 负责人:
    Chung Law
  • 依托单位:
2017 Princeton Summer School on Combustion
  • 批准号:
    1712346
  • 项目类别:
    Standard Grant
  • 资助金额:
    $4.95万
  • 财政年份:
    2017
  • 负责人:
    Chung Law
  • 依托单位:
海外基金