白博峰
非线性沸腾流动与传热、多相流动力学及其随机诊断、晶体生长热物理
个性化签名
- 姓名:白博峰
- 目前身份:
- 担任导师情况:
- 学位:
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学术头衔:
“973”、“863”首席科学家, 博士生导师
- 职称:-
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学科领域:
热工学
- 研究兴趣:非线性沸腾流动与传热、多相流动力学及其随机诊断、晶体生长热物理
男,副教授,1971年9生,祖籍河北省南皮县。1999年获西安交通大学热能工程专业工学博士学位。现任动力工程多相流国家重点实验室副主任,中国工程热物理学会多相流专业委员会委员兼秘书,全国压力容器标准化技术委员会换热设备分委员会委员。2005年入选教育部“新世纪优秀人才支持计划”。主要研究方向包括非线性沸腾流动与传热、多相流动力学及其随机诊断、晶体生长热物理、。部分研究成果已为中国核动力研究设计院、中船重工集团公司第705所等所应用,取得了良好的经济与社会效益。负责并已完成863计划项目课题、国家自然科学基金青年基金项目、国家973项目的课题及武器装备部预研基金项目课题共4项;目前负责国家973项目的课题1项、国家自然科学基金重点项目二级课题1项、国家自然科学基金面上项目1项、武器装备部预研基金项目1项、教育部博士点基金项目1项、横向课题2项。总计发表研究论文55篇,其中国际期刊论文9篇,国内期刊论文29篇,国内学术会议特邀报告3篇,国际学术会议特邀报告2篇,被SCI、EI、ISTP检索24篇。研究成果曾获国家教育部科学技术进步二等奖、陕西省自然科学一等奖各1项,获国家发明及实用新型专利各1项。代表论文如下:
[1] Bai Bofeng, Guo Liejin, Feng Ziping and Chen Xuejun, “Turbulent Heat Transfer in Horizontal Coiled Tube”, Heat Transfer Asia Research, Vol.28(5) : 395-403, 1999
[2] Bai Bofeng, Guo Liejin, and Chen Xuejun, “A Solution to the Two-Dimensional Inverse Heat Conduction Problem”, Heat Transfer Asia Research, Vol.29(2) : 113-119, 2000
[3] Guo Liejin, Bai Bofeng, Chen Xuejun, “Nonlinear feature analysis of multiphase flow and automatic pattern recognition of flow regimes”, The 3rd Int. Symp. On Two-Phase Flow Modeling and Experimentation, Pisa, 22-24 Sept., 2004 (Keynote Paper)
[4] Huang Fei, Bai Bofeng, Guo Liejin, “A mathematical model and numerical simulation of pressure wave in horizontal gas-liquid bubbly flow,” Progress in Natural Science, Vol.14(4): 344-349, 2004
[5] Bai Bofeng, Xu Feng, Guo Liejin, “Numerical study of gravity effect on the flow and heat transfer of fluids under supercritical pressure”, The 4th European Thermal Sciences Conference 2004, UK
[6] 白博峰,郭烈锦,赵亮. “垂直上升管汽液两相流型的压差波动特征识别,” 化工学报, Vol.50(6) : 709-805, 1999
[7] 白博峰,郭烈锦,陈学俊. “热流密度对汽水两相流压力波动特性的影响,” 核动力工程,Vol.22 (1) : 1-6, 2001
[8] 白博峰,郭烈锦,陈学俊. “气液两相流流型在线智能识别,” 中国电机工程学报,Vol.21 (7) : 46-50, 2001
[9] 白博峰,王忠勇,郭烈锦,张西民. “多相流流型识别技术与系统开发,” 西安交通大学学报, Vol.37(3) : 925-928, 2003
[10] 白博峰,陈学俊,“垂直上升管泡状流压力波动的多尺度分析,”工程热物理学报,Vol.25(3): 427-430, 2004
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白博峰, 郭烈锦, 陈学俊
核动力工程,2001,22(1):1~6,-0001,():
-1年11月30日
实验研究了螺管内绝热和沸腾汽液两相流动时压力波动特性,分析了热流密度对压力波动的影响规律。结果表明沸腾时波动的均方根和分形参数(分维数、关联维数和Kolmogorov熵)与绝热两相流明显不同,加热热流密度的大小影响各特征参数的大小及其随干度的变化规律。未考虑流密度影响的流型图或流型转变准则只能在小热流密度时使用。
汽水两相流, 热流密度, 螺旋管, 压力波动, 分形理论
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白博峰, 郭烈锦, 陈学俊
中国电机工程学报,2001,21(7):46~50,-0001,():
-1年11月30日
在线识别的关键问题在于如何利用最短时间历程的参数波动过程完成由参数波动的特征空间到流型空间的映射。 CPN神经网络能够对自组织映射的结果进行有导师的训练,因此可以为流型的自动、客观和在线识别提供有效的手段。文中结合压力波动过程的快速傅立叶变换系数,对U形管垂直上升段内空气-水两相流的流型进行自动识别,在线性指标达到了8.2s。对如何提高流型快速识别的在线性指标和识别率等作了相关的探讨。
气液两相流, 流型, 在线识别, 神经网络
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白博峰, 王忠勇, 郭烈锦, 张西民
西安交通大学学报,2003,37(3):306~309,-0001,():
-1年11月30日
基于油气水多相流混合物在管道内流动时的多传感器信号——压力和压差信号,建立特定流型的识别规则,采用学习矢量量化模式分类器作为未知流型的分类器,根据数据融合的技术思路获得了油气水多相流的流型在线识别技术。通过系统集成的手段,利用微处理装置研制出了流型识别系统。该识别技术具有置信度高、容错性好、性能稳定、降低了对单个传感器的性能要求等优点。该识别系统结构简单、无运动部件、不改变管道的截面结构,可以处理非快速变化的瞬态流动,测量误差小于10%,并具有连续工作、定时打印、信号输出等功能。
多相流, 流型, 多传感器, 识别规则
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白博峰, 郭烈锦, 赵亮
化工学报,1999,50(6):799~805,-0001,():
-1年11月30日
运用现代数字信号处理技术,对垂直上升管水/水蒸气两相流不同流型时的压美波动信号特性进行了分析研究,提出了基于压差波动特征的两相流型的客观识别方法。通过提取压差波动信号的功率谱分布特征,表明利用功率谱随频率的分布特性的均方根可客观识别的泡状流、间歇流和环状流。
两相流,, 流型,, 功率谱密度函数,, 特征提取
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白博峰, 陈学俊
工程热物理学报,2004,25(3):427~430,-0001,():
-1年11月30日
从理想的单气泡运动物理模型和离散正交小波与统计相结合的信号处理技术研究了泡状流压力波动的机理与多尺度的频规律,得到以下结论:泡状流的压力波动主要来源于气泡的运动和诱导湍及液相湍流,其中在低流速下前者产生的压力波动幅度大于后两者;存在一个临界频率,低于该频率压力信号均方根随频率的增加面增加,高于该频率压力信号均方根随频率的增加而减少;发生流型转变时压力信号的时频特征发生明显改变,最大均方根出现在更低的频率区。
泡状流, 压力波动, 多尺度分析
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【期刊论文】Turbulent Heat Transfer in a Horizontal Helically Coiled Tube
白博峰, Bofeng Bai, Liejin Guo, Ziping Feng, and Xuejun Chen
Heat Transfer-Asian Research, 28 (5), 1999,-0001,():
-1年11月30日
An experiment has been conducted in detail to study the turbulent heat transfer in horizontal helically coiled tubes over a wide range of experimental parameters. We found that the enhancement of heat transfer in the coils results from the effects of turbulent and secondary flows. With Reynolds number increasing to a high level, the contribution of the secondary flow becomes less to enhance heat transfer, and the average heat transfer coefficient of the coil is closer to that in straight tubes under the same conditions. The local heat transfer coefficients are not evenly distributed along both the tube axis and the periphery on the cross section. The local heat transfer coefficients on the outside are three or four times those on the inside, which is half of the average heat transfer. A correlation is proposed to describe the distribution of the heat transfer coefficients at a cross section. The average cross-section heat transfer coefficients are distributed along the tube axis. The average value at the outlet section should not be taken as the average heat transfer coefficient.
Turbulent heat transfer,, horizontal helically coiled tube,, secon-dary flow,, local heat transfer
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白博峰, Bai Bofeng* Xu Feng Guo Liejin
,-0001,():
-1年11月30日
With the development of supercritical fluids technology, more and more attention is being paid to the study of flow and heat transfer under supercritical conditions. In order to better understand the influence of gravity on the flow and heat transfer of supercritical fluids, with the CFD software FLUENT 6.0, a numerical study has been conducted for the developing laminar flow and heat transfer of water in a smooth vertical tube under supercritical pressure. The flow and heat transfer have been studied with the inlet Reynolds number ranging from 500 to 2000, Grashof number er ranging from1
supercritical,, pseudo-critical,, flow,, heat transfer
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【期刊论文】NONLINEAR FEATURE ANALYSIS AND AUTOMATIC PATTERN RECOGNITION OF OIL-GAS-WATER MULTIPHASE FLOW
白博峰, Guo Liejin, Bai Bofeng, Chen Xuejun
3rd International Symposium on Two-Phase Flow Modelling and Experimentation Pisa, 22-24 September 2004,-0001,():
-1年11月30日
In the present investigation, both pressure fluctuations and differential pressure signals were measured for oil-gas-water multiphase piping flow in wide ranges of flow parameters in horizontal pipe. The signal features were extracted and analyzed, which included time domain features, frequency domain features and fractal features. Both liquid velocity and oil fraction have tremendous influence on the feature analysis, which all the feature have bad clustering and bad separability for the same flow pattern or different flow pattern respectively. It is proved that the recognition methods, RMS of the pressure, PDF or PSD of differential pressure fluctuation, are not able to be employed widely in the industrial applications. The pressure fluctuations exhibit chaotic characters and are influenced by flow patterns. The regulations to identify the special flow pattern are obtained basing on the joint feature analysis. The online intelligent recognition of flow patterns is proposed which is a fusion method combining the special regulations and the pattern recognition. The proposed method was examined in the oil-gas-water loop and the results showed that bubble flow, stratified flow, intermittent flow and annular flow could be identified with more than 90% accuracy.
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【期刊论文】A Solution to the Two-Dimensional Inverse Heat Conduction Problem
白博峰, Bofeng Bai, Liejin Guo, and Xuejun Chen
Heat Transfer-Asian Research, 29 (2), 2000,-0001,():
-1年11月30日
A simple method is developed in this paper to solve two-dimensional nonlinear steady inverse heat conduction problems. The unknown boundary conditions can be numerically obtained by using the iteration and modification method. The effect of measurement errors of the wall temperature on the algorithm is numerically tested. The results prove that this method has the advantages of fast convergence, high precision, and good stability. The method is successfully applied to estimate the convective heat transfer coefficient in the case of a fluid flowing in an electrically heated helically coiled tube
Inverse heat conduction problem,, nonlinear,, two-dimensional
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白博峰, HUANG Fri, BAI Bofeng and GUO Liejin**
,-0001,():
-1年11月30日
Byu singa ne nsemble-avem gedt wo-fluid model, with validc losurec onditionso fin terfacialtu omenturne xchanged uet ovirtual mass force, visco us shears tressand dragf orce, amodelfo rp ressurew avep ropagation in a horizontal gas-liquid bubbly flow is proposed. Accordingt ot hes mallp erturbationt heorya nds olvablec onditiono fo eorderlinearu niform equations, ad spersione quationo fpressurew aveis in duced. The pressue wave speedc alculatedf rom the modelis compare danding oods greem entwithe xistingdata. According to the dispersion equation, the propagation and attenuation of pressure wave are investigated systemicaly. The factors affecting pressure wave, sucha sv oidf raction, pressure, wallsh ears tress, perturbationf requency, virtualm ass for ceandd ragforce, are analyzed. The result shows that the decrease in system pmmare, the increase in void fraction and the existence of wall shear stress, will cause a decre inp ressurew avesp eeda nda nIn eressein the a tenuationc oefficientin the horizontalga s-liquidb ubblyflow. Thee ffectso fp erturbstion frequency, virtual mess and drag force on pressure wave in the horizontal gas-liquid bubbly flow at low perturbation frequency are different from that at high perturbation frequency.
pressure wave,, two-Pluld model,, gas-liquid bubblyflow,, dispersion,, speed,, attenuation.,
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