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Journal of Thermal Science 2010年第2期19卷 160-166页

作者： Xiaohong GUI Wei QU Bin LIN xiugan yuan Institute of Engineering Thermophysics Chinese Academy of Sciences Beijing 100190 China University of Notre Dame Notre Dame IN 46556 USA Institute of Man-Machine-Environment Engineering Beihang University Beijing 100191 China

High-temperature Phase Change Material (PCM) is used as a thermal storage medium of a heat-pipe receiver in an advanced solar dynamic *** both void cavity and natural convection considered,thermal performance of the heat-pipe receiver is numerically analyzed under *** results indicate that the PCM contained in the integrated heat pipe performs an averaging function of heat *** thermal performance of the heat-pipe receiver is stable and *** a heating cycle is stable,the temperature fluctuations both on heat-pipe wall and in PCM canister remain less than 13 K throughout a sunlight and eclipse *** utility of PCM is essentially *** maximum melting ratio of PCM is 92%.Under gravity,PCM melts more quickly with the effect of natural *** convection accelerates the process of phase *** results are compared with the experimental results *** accuracy of numerical model under gravity is *** experiment for the PCM canister on the ground can be well prepared with our numerical simulation.

关键词： Heat-pipe Receiver Phase Change Material Void Cavity Natural Convection

Human Thermoregulation Model for Estimating Thermal Protection Performance of Anti-G Garments

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Chinese Journal of Mechanical Engineering 2012年第1期25卷 47-54页

作者： QIU Yifen WU Wei yuan xiugan XIAO Baoliang REN Zhaosheng School of Aeronautic Science and Engineering Beihang UniversityBeijing 100191China Aerospace Life-Support Industries Ltd.Xiangfan 441003China Institutes of AviationMedicine Beijing 100036China

The body temperature of pilots wearing anti-G garments becomes uncomfortably or even dangerously high in moderate to hot environments. To reduce the body heat stress, thermal characteristics and thermal protection performance of anti-G garments should be studied systematically, but up to now there is no related research to simulate the anti-G garment thermal protection performance. First, a human thermoregulation model is established which can analyze blood convective heat exchange and the central blood temperature fluctuation, according to this model the heat and mass transfer processes of a thermal system are simulated which consists of human body, an anti-G garment, and the surrounding environment, then on the base of this thermal system simulation influences of clothing permeability, thermal resistance and bladder coverage on anti-G garments are analyzed. Calculation of the human thermoregulation model is carried out by using finite element method. Experiments are conducted in 35 °C and 40 °C climate chambers, and model built above is well validated by these experiments. Model simulation reveals that low thermal resistance and high permeability of anti-G garments reduce body heat stress in moderate environments. In hot environments, however, anti-G garments with lower thermal resistance increase body heat stress. The body heat stress rises significantly as the bladder coverage area of anti-G garments increases. Anti-G garments thermal parameters can be appropriately designed by using the model built in this paper to ensure body physiological requirements.

关键词： heat stress simulation heat transfer clothing water evaporation

Comparison of a Reaction Front Model and a Finite Difference Model for the Simulation of Solid Absorption Process

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Journal of Thermal Science 1994年第2期3卷 136-141页

作者： Zikang Wu Arne Jakobsen xiugan yuan PWors e-Schmid Group 505 Air-Conditioning and Refrigeration InstituteBeijing University of Aeronautics and AstronauticsBeijing 100083China Refrigeration Laboratory The Technical University of DenmarkDK-2800LyngbyDenmark

The purpose of this paper is to investigate the validity of a lumped model, i.e. a reaction front model,for the simulation of solid absorption process. A distributed model is developed for solid absorption process, and a dimensionless RF number is suggested to predict the qualitative shape of reaction degree profile. The simulation results from the reaction front model are compared with those from the distributed model solved by a finite difference scheme, and it is shown that they are in good agreement in almost all casest no matter whether there is reaction front or not.

关键词： solid absorption simulation reaction front RF number reaction degree profile.

A NEW TWO-DIMENSIONAL "MAN-WCV" MATHEMATICAL MODEL OF THE HUMAN THERMOREGULATION

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Chinese Journal of Aeronautics 1990年第4期5卷 266-276页

作者： yuan xiugan and Sha BinBeijing University of Aeronautics and Astronautics

In the paper a new two-dimensional 'man-WCV'(water cooling vest) mathematical model is developed. This model is of practical use: it can predict transient temperature responses and body temperature distribution for a person in a nonuniform hot environment, doing various jobs and dressed in different clothes. In addition, the results calculated from the model can be used to optimize the distribution of the tube-net lined on the WCV and to evaluate an individual thermal conditioning system with cooling water. The results obtained from the model agree well with the author's experimental data.

关键词： body A NEW TWO-DIMENSIONAL MAN-WCV MATHEMATICAL MODEL OF THE HUMAN THERMOREGULATION

THE CONTRAST MODEL METHOD FOR THE THERMODYNAMICAL CALCULATION OF AIR-AIR WET HEAT EXCHANGER

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Chinese Journal of Aeronautics 1989年第1期 56-61页

作者： yuan xiugan and Mei Fang Beijing University of Aeronautics, and Astronautics

A new method of thermodynamical calculation for air- air crossflow wet heat exchangerswith air condensation at the beginning is developed in this report;it is named the contrast *** fundamentals are that the contrast model equations are made from theactual heat exchanger equations and imaginary heat exchanger equations,and then it may beproved that the enthalpy efficiency of the contrast model equations is similar to the temperatureefficiency of the dry beat *** the thermodynamical calculating methods fordry heat exchanger and wet heat exchanger can be unified under given conditions.

关键词： heat THE CONTRAST MODEL METHOD FOR THE THERMODYNAMICAL CALCULATION OF AIR-AIR WET HEAT EXCHANGER

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高性能战斗机燃油热管理系统

北京航空航天大学学报 2009年第11期35卷 1353-1356页

作者：高峰袁修干北京航空航天大学航空科学与工程学院北京100191

针对高性能战斗机的特点,介绍了利用燃油作为主要热沉的燃油热管理系统FTMS(Fuel Thermal Management System).以F-22的热管理系统为原型,在对其技术方案及研究方法进行了相关分析后,通过MATLAB工具建立了系统各部件的动静态仿真模块.... 详细信息

针对高性能战斗机的特点,介绍了利用燃油作为主要热沉的燃油热管理系统FTMS(Fuel Thermal Management System).以F-22的热管理系统为原型,在对其技术方案及研究方法进行了相关分析后,通过MATLAB工具建立了系统各部件的动静态仿真模块.并在此基础上,搭建了燃油热管理系统的仿真平台,利用该仿真平台对燃油热管理系统的性能及燃油代偿损失等进行预测和评估.计算结果表明,燃油热管理系统性能要好于传统的空气循环制冷系统,在热管理方面可作为我国新一代高性能飞机设计研究的一个备选方案.

关键词：热管理仿真环境控制系统

COMPUTER SIMULATION IN MAN-MACHINE-ENVIRONMENT SYSTEM ENGINEERING

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Chinese Journal of Aeronautics 1995年第3期8卷 168-173页

作者： yuan xiugan(Fifth Department,Beijing University of Aeronautics andAstronautics,Beijing,China,100083)

ＣＯＭＰＵＴＥＲＳＩＭＵＬＡＴＩＯＮＩＮＭＡＮ－ＭＡＣＨＩＮＥ－ＥＮＶＩＲＯＮＭＥＮＴＳＹＳＴＥＭＥＮＧＩＮＥＥＲＩＮＧＹｕａｎＸｉｕｇａｎ（ＦｉｆｔｈＤｅｐａｒｔｍｅｎｔ，ＢｅｉｊｉｎｇＵｎｉｖｅｒｓｉｔｙｏｆＡｅ... 详细信息

ＣＯＭＰＵＴＥＲＳＩＭＵＬＡＴＩＯＮＩＮＭＡＮ－ＭＡＣＨＩＮＥ－ＥＮＶＩＲＯＮＭＥＮＴＳＹＳＴＥＭＥＮＧＩＮＥＥＲＩＮＧＹｕａｎＸｉｕｇａｎ（ＦｉｆｔｈＤｅｐａｒｔｍｅｎｔ，ＢｅｉｊｉｎｇＵｎｉｖｅｒｓｉｔｙｏｆＡｅｒｏｎａｕｔｉｃｓａｎｄＡｓｔｒｏ...

关键词： computerized simulation human factors engineering computer graphics analogies

Transient Performances of a Two-Pass Gas-to-Gas Crossflow Heat Exchanger

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Journal of Thermal Science 1998年第1期7卷 67-70页

作者： Song-Junxiao Lin-Guiping yuan-xiugan(Institute of Air-Conditioning and Refrigeration,Beijing University of Aeronautics and Astronautics,Beijing 100083) Institute of Air-Conditioning and Refrigeration Beijing University of Aeronautics and Astronautics Beijing

In this paper a lumped parameter model of a two-pass gas-to-gas crossflow heat exchanger with high speed air flow has been presented for the investigation of its transieat behaviours. The effects of both the changes of inlet temperature and flow rate on outlet temperature can be predicted with this *** calculation results under typical conditions are compared with experimental results and good agreements are obtained.

关键词： lumped parameter transient performances heat exchanger

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基于舒适度最大化的人体运动控制

计算机辅助设计与图形学学报 2005年第2期17卷 267-272页

作者：杨锋袁修干北京航空航天大学航空科学与工程学院北京100083

在分析人体自身运动反馈控制机理的基础上 ,引入舒适度作为人体运动控制的性能指标函数 ,提出了一种基于舒适度最大化的人体运动控制算法该算法综合考虑了运动学、动力学以及人体工效学等因素 ,避免了单纯从动力学方面求解带来的虚拟... 详细信息

在分析人体自身运动反馈控制机理的基础上 ,引入舒适度作为人体运动控制的性能指标函数 ,提出了一种基于舒适度最大化的人体运动控制算法该算法综合考虑了运动学、动力学以及人体工效学等因素 ,避免了单纯从动力学方面求解带来的虚拟人体动画所隐含的力量冲突 ,提高了仿真结果的真实性和合理性最后 ,用实验验证了文中算法的有效性

关键词：人体运动仿真优化舒适度虚拟人

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差分格式的优化组合

北京航空航天大学学报 1999年第2期25卷 192-196页

作者：庄达民袁修干北京航空航天大学飞行器设计与应用力学系

用偏微分方程组解实际的三维紊流流动问题时，如何选择各方程中对流项和扩散项的差分格式将对计算的稳定性、准确性与经济性影响很大．对一个实际的流动问题，计算机模拟验证了迎风差分、中心差分、混和格式、ＰＬＤＳ（ＰｏｗｅｒＬａ... 详细信息

用偏微分方程组解实际的三维紊流流动问题时，如何选择各方程中对流项和扩散项的差分格式将对计算的稳定性、准确性与经济性影响很大．对一个实际的流动问题，计算机模拟验证了迎风差分、中心差分、混和格式、ＰＬＤＳ（ＰｏｗｅｒＬａｗＤｉｆｅｒｅｎｃｉｎｇＳｃｈｅｍｅ）、ＱＵＩＣＫ（二次迎风插值）和ＯＰＴＩＭＡＬ（ＯｓｃｉｌａｔｉｏｎＰｒｅｖｅｎｔｉｎｇＴｅｃｈｎｉｃａｌａｌｇｏｒｉｔｈｍｂａｓｅｄｏｎｔｈｅｓｅｃｏｎｄｏｒｄｅｒＩｎｔｅｒｐｏｌａｔｉｏｎＭｅｔｈｏｄｆｏｒＡｄｖｅｃｔｉｏｎＬｉｎｋｅｄｃｏｎｖｅｃｔｉｏｎ）的各种组合对计算的稳定性、准确性与经济性的影响．对中心差分应用在雷诺时均方程中出现的数值解的振荡问题提出了在局部网格使用迎风差分的具体对策．对ＱＵＩＣＫ应用在κ，ε输运方程上出现的数值解的发散问题提出了ＱＵＩＣＫ和迎风差分格式交替使用的具体方法．

关键词：差分格式湍流数值计算优化组合