Active Control of Heat and Mass Transfer using Functional Jets Array
使用功能射流阵列主动控制传热传质
基本信息
- 批准号:13450088
- 负责人:
- 金额:$ 8.83万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (B)
- 财政年份:2001
- 资助国家:日本
- 起止时间:2001 至 2002
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Control of scalar transport and local distribution is of significance for improvement of jet utilized fluid devices. Concepts of an array of jets and feedback control were introduced in order to control thermal fluid features. In the present study, three types of array of jets were investigated, that is, an array of triple parallel 2-dimensional air jets (width 15mm, nozzle spacing 50mm and Reynolds number 4000-8000), a staggered array of seven circular air jets (diameter 13mm, nozzle spacing 17mm and Reynolds number 1700-9500) and two parallel planar impinging water jets (width 10mm, nozzle spacing 36mm and Reynolds number 500-1000). Characteristics of the velocity field were examined in order to design control system by particle image velocimetry (PIV). In the first one, the exits velocity of the three jets were determined with feedback control based on the velocity distribution detected by an array of hot-wire probes in real time. Fluctuation intensity of the averaged velocity distribution was reduced and the system became robust with the recovering time shortened for disturbance. Neural network algorithm was applied to further complicated shape of velocity or concentration profile as a controller. In the second one, the relation between jets mixing and the ratio of the surrounding jets velocity was examined experimentally so that control system to realize the directional shape was achieved, which can rotate the orientation of concentration profile as a time sequential control. In the third one, manipulation of the local shear layers via the synthetic excitation through the fine slits at the nozzle exit was applied in order to control vorticies near the impinging plate. The present feedback control system showed the reduction of wall temperature fluctuation by the modification of vortices changing the pattern and the phase of the excitation.
标量传输和局部分布的控制对于改进射流流体装置具有重要意义。引入了喷射阵列和反馈控制的概念,以控制热流体特性。在本研究中,研究了三种类型的射流阵列,即三重平行二维空气射流阵列(宽度15mm,喷嘴间距50mm,雷诺数4000-8000)、七个圆形空气射流交错阵列(直径13毫米,喷嘴间距17毫米,雷诺数1700-9500)和两个平行平面冲击水射流(宽度10mm,喷嘴间距36mm,雷诺数500-1000)。检查速度场的特性,以便设计粒子图像测速(PIV)控制系统。在第一个模型中,三个射流的出口速度是根据一组热线探头实时检测到的速度分布通过反馈控制确定的。平均速度分布的波动强度减小,系统变得鲁棒,扰动恢复时间缩短。神经网络算法被应用于更复杂的速度或浓度分布形状作为控制器。在第二个实验中,通过实验研究射流混合与周围射流速度之比之间的关系,从而实现了实现定向形状的控制系统,该控制系统可以将浓度分布的方向旋转为时序控制。在第三种方法中,通过喷嘴出口处的细缝进行合成激励来操纵局部剪切层,以控制冲击板附近的涡流。目前的反馈控制系统表明,通过修改涡流,改变激励模式和相位,可以减少壁温波动。
项目成果
期刊论文数量(78)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
K.Yamamoto, K.Hishida: "Quantitative Visualization of Turbulent Mixing in Parallel Triple Jets"Experimental Heat Transfer, Fluid Mechanics, and Thermodynamics 2001. Vol.2. 1029-1034 (2001)
K.Yamamoto、K.Hishida:“平行三射流中湍流混合的定量可视化”实验传热、流体力学和热力学 2001 年。第 2 卷。
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- 影响因子:0
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- 通讯作者:
Koichi HISHIDA, Kazuyuki YAMAMOTO: "Functional Array of Jets by Feedback Mixing Control"The Japan Society of Mechanical Engineers 2002 Thermal Engineering Conference, Okinawa, Japan, November 7-8. 501-502 (2002)
Koichi HISHIDA、Kazuyuki YAMAMOTO:“通过反馈混合控制实现射流功能阵列”日本机械工程师学会 2002 年热能工程会议,日本冲绳,11 月 7-8 日。
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- 影响因子:0
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Kazuyuki Yamamoto, Gyo Kuwabara, Toshiyuki Murakami, Koichi Hishida: "Mixing Control by Array of Jets with Neural Network"Proc. of The 6th ASME-JSME Thermal Engineering Joint Conference. 378. (2002)
Kazuyuki Yamamoto、Gyo Kuwabara、Toshiyuki Murakami、Koichi Hishida:“通过神经网络喷射阵列进行混合控制”Proc。
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野崎篤志, 片山智章, 山本和之, 菱田公一: "平行平面衝突噴流群の励起による熱伝達制御"第39回日本伝熱シンポジウム講演論文集. C325 (2002)
Atsushi Nozaki、Tomoaki Katayama、Kazuyuki Yamamoto、Koichi Hishida:“通过平行平面撞击射流组的激励进行传热控制”第 39 届日本传热研讨会 C325 论文集(2002 年)。
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- 影响因子:0
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Kazuyuki YAMAMOTO, Koichi HISHIDA: "Quantitative Visualization of Turbulent Mixing in Parallel Triple Plane Jets"5th World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics,Thessaloniki, Greece, September24-28. Vol.2. 1029-1034
Kazuyuki YAMAMOTO、Koichi HISHIDA:“平行三平面射流中湍流混合的定量可视化”第五届实验传热、流体力学和热力学世界会议,希腊塞萨洛尼基,9 月 24-28 日。
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HISHIDA Koichi其他文献
HISHIDA Koichi的其他文献
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{{ truncateString('HISHIDA Koichi', 18)}}的其他基金
Development of Micro/Nanoscale Thermofluid Multiple Sensing and Interface-Controlled Device
微/纳米级热流体多重传感与接口控制装置的研制
- 批准号:
21226006 - 财政年份:2009
- 资助金额:
$ 8.83万 - 项目类别:
Grant-in-Aid for Scientific Research (S)
Establishment of Micro/Nanoscale Imaging Technique for Anisotropic Extraction of Interfacial Convective Diffusion Phenomena
界面对流扩散现象各向异性提取微纳成像技术的建立
- 批准号:
18206024 - 财政年份:2006
- 资助金额:
$ 8.83万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
MONITORING AND ACTIVE CONTROL OF HEAT AND MASS TRASFER IN MICRO- AND NANOSCALE
微米级和纳米级传热传质的监测和主动控制
- 批准号:
15206024 - 财政年份:2003
- 资助金额:
$ 8.83万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Research Development of Multiple Valuable Imaging in Micro-Thermofluid Devices
微热流体装置多重有价值成像的研究进展
- 批准号:
13555057 - 财政年份:2001
- 资助金额:
$ 8.83万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Structure of Heat and Mass Transfer process in Turbulent Bubbly Flow by Combined Laser Imaging.
通过组合激光成像研究湍流气泡流中的传热传质过程结构。
- 批准号:
11450088 - 财政年份:1999
- 资助金额:
$ 8.83万 - 项目类别:
Grant-in-Aid for Scientific Research (B).
Research Development of multi-dimensional combined measurement in heat and fluid flow by multi-layer imaging.
多层成像热流与流体流多维联合测量研究进展
- 批准号:
10555062 - 财政年份:1998
- 资助金额:
$ 8.83万 - 项目类别:
Grant-in-Aid for Scientific Research (B).
Control of Heat and Momentum Transport Process by a Reversible Transform Micelle of Polymer
聚合物可逆转变胶束控制热量和动量传输过程
- 批准号:
09650253 - 财政年份:1997
- 资助金额:
$ 8.83万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
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