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非傅立叶
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  non-fourier
     Two non-Fourier heat conduction models: heat wave model and two step model were also summarized and discussed in this paper.
     文中还对微尺度条件下的非傅立叶导热模型,主要是快速瞬态导热的热波模型和两步模型的研究状况和发展进行了分析和综述。
短句来源
     NON-FOURIER ANALYSIS OF PERIODICAL VIBRATION TEMPERATURE FIELD
     周期震荡温度场非傅立叶分析
短句来源
     Non-fourier is applied in the research of thermal shock,with the finite speed of heat propagation is considered in the situations involving very short times or extreme thermal gradients,an effective method is presented for gaining the distribution of the temperature field and the exact solution for the transient waves caused by thermal shock,the response and distribution of thermodynamic stresses in a hollow cylinder are also solved by means of the analytical method.
     在热冲击问题中引进非傅立叶分析,考虑了在极端热传递条件下的非稳态传热过程中热量传播速度的有限性,然后用一种解析方法得到温度场和应力波传播的精确解,进而分析了空心圆柱体内的热动应力的响应和分布规律。
短句来源
     Study on the Non-Fourier Effect during Coal Particles Combustion
     煤粉颗粒燃烧过程中的非傅立叶效应研究
短句来源
     Discussion on the Transient of Non-Fourier Heat Conduction Law and Laser Heat Treatment
     强瞬态非傅立叶导热效应判据与激光冲击硬化应用的探讨
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  non fourier
     Analysis of Non Fourier Effect and Laser induced Thermal Damage of Laser irradiated Layered Human Skin Tissue
     激光对皮肤层状组织作用的非傅立叶效应及光致热损伤分析
短句来源
     This study simulates the effects of different temperature pulse inlet conditions on non Fourier heat conduction problem, and numerically predicts different non Fourier heat conduction characters produced by different pulse types and different pulse frequencies, respectively.
     针对不同温度脉冲进口条件对非傅立叶导热问题的影响进行了模拟 ,数值预示了不同脉冲形式 ,以及不同脉冲频率产生的不同的非傅立叶导热特征 ;
短句来源
     Also, the differences between thermal wave, non Fourier and Fourier heat conduction under the same pulse condition are showed.
     同时也数值预示了同一种脉冲作用下 ,热波导热、非傅立叶导热和傅立叶扩散的差别
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  “非傅立叶”译为未确定词的双语例句
     Theoretical Research of Rapid Heating Semi-Infinite Object with Impacting Heat Flux
     冲击热流快速加热半无限体热冲击问题非傅立叶效应研究
短句来源
     Non Fourier Heat Conduction in Spherical Medium with Pulse Heat Flux Boundary
     脉冲热流作用下球体内的非傅立叶热传导
短句来源
     Effect of Temperature Pulse Inlet Condition on One-Dimensional Heat Conduction Problem
     温度脉冲进口条件对单相介质一维非傅立叶导热问题的影响
短句来源
     Experiment is designed to measure heat relaxation time. Comparison with heat action time validates above analysis.
     设计试验测量得到推进剂热松弛时间,经与热作用时间比较验证了固体推进剂瞬态传热过程中的非傅立叶效应。
短句来源
     The mathematical model of universal Fourier heat conduction law has been discussed in this paper,which is based on the hyperbolic heat conduction equation of non\|Fourier heat conduction law,and an analytical solution of a semi\|infinite body has been derived under the first boundary condition.
     为了更好地反映激光冲击硬化的强瞬态特征及建立非傅立叶导热效应作用范围的判据 ,本文讨论了通用傅立叶导热定律的数学模型 ,推导了半无限大物体在第一类边界条件下基于非傅立叶导热定律的双曲线型偏微分方程的解析解。
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  non-fourier
Non-Fourier-Lebesgue trigonometric series with nonnegative partial sums
      
Explicit analytical solutions of non-Fourier heat conduction equation for IC chip
      
Four basic explicit analytical solutions of non-Fourier heat conduction equation simulating IC chip thermal condition are derived.
      
DPL model analysis of non-Fourier heat conduction restricted by continuous boundary interface
      
Numerical solution of this kind of non-Fourier heat conduction is presented in this paper.
      
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Hyperbolic non Fourier heat conduction in a spherical medium under time varying pulse heating was analyzed. The nondimensional forms of heat conduction equation, boundary conditions and initial conditions of such a rapid transient heat conduction problem were proposed. The analytical expression of transient temperature distribution in the sphere was obtained using Laplace transform technique. As an example, the propagation of temperature in the sphere under square wave heat pulse was simulated. The results...

Hyperbolic non Fourier heat conduction in a spherical medium under time varying pulse heating was analyzed. The nondimensional forms of heat conduction equation, boundary conditions and initial conditions of such a rapid transient heat conduction problem were proposed. The analytical expression of transient temperature distribution in the sphere was obtained using Laplace transform technique. As an example, the propagation of temperature in the sphere under square wave heat pulse was simulated. The results show that such a rapid transient heat conduction problem has the following characteristics compared with the common Fourier case:(1) There is a time lagging response in temperature from the surface to the interior. (2) The variation of temperature inside the sphere is discontinuous due to the discontinuous time varying surface heat flux.(3) The surface heat pulse will cause the peak pulse of temperature in the interior of the materials.(4) The significance of non Fourier effects in heat conduction mainly depends on the thermal imposed time, the thermal relaxation time and characteristic length of the materials.

分析了球形物体表面遭受一随时间变化脉冲热流时的双曲型非傅立叶热传导问题.给出了此类超急速传热情形下的热传导方程、边界条件及初始条件的无量纲形式,采用Laplace变换技术,求得了任意时刻球体内部温度分布的解析解.作为算例,计算了方波脉冲这类随时间变化热流作用下球体内的温度变化,结果表明,该类超急速热传导问题与常规的傅立叶热传导相比具有明显不同的特征

An“instantaneous thin layer”model for transnormal heat or mass transfer is brought forward in this paper.For transnormal heat or mass transfer,there is an interface existing in the medium,which divides the object into two parts:the “instantaneous thin layer”,which is a thin Layer region around the heat or mass disturbance position,and the other part of the object. Heat or mass transfer in the “thin layer”is governed by the transnormal law (non Fourier or non Fick law)and that in the other part is still complied...

An“instantaneous thin layer”model for transnormal heat or mass transfer is brought forward in this paper.For transnormal heat or mass transfer,there is an interface existing in the medium,which divides the object into two parts:the “instantaneous thin layer”,which is a thin Layer region around the heat or mass disturbance position,and the other part of the object. Heat or mass transfer in the “thin layer”is governed by the transnormal law (non Fourier or non Fick law)and that in the other part is still complied with the traditional law (Fourier or Fick law) approximatively.Heat or mass transfer at the boundary surface of the“thin layer”region is satisfied to the continuous boundary condition(i.e.the fourth kind boundary condition).An example of one dimensional transnormal heat conduction,resulted from a rectangular pulsed energy souce,is presented in this paper.The hyperbolic non Fourier heat conduction equation is employed to describe this transnormal thermal case and the finite diference method (FDM)combined with MacCormack's predictor corrector scheme is used to solve it.The correlativity of the thickness of the thermal“instantaneous thin layer”to the thermal relaxation time,thermal diffusivity and the thermal disturbing source(including its strength and instantaneity) is obtained.Moreover,according to the analogy of the mass and heat transfer,the correlativity of the thicknes of the mass“instantaneous thin layer”to the mass relaxation time,mass diffusivity and the mass disturbing source is obtained too.

提出了超常热、质传递过程的“瞬态薄层”模型———在超常热、质传递条件下 ,紧靠介质内受热或质扰动的位置 ,存在一“薄层”区域 ,该薄层内的热传导或质量传递必须考虑非经典 (非傅立叶或非费克 )传递效应 ,在薄层外、介质内其他部分的热、质传递仍近似符合经典热、质传递定律 (傅立叶和费克定律 ) ;“瞬态薄层”内的非经典传递效应只可能在热、质扰动过后的极短瞬时存在 .在分析介质内的非傅立叶导热行为的同时 ,根据热、质传递的可类比性得到非经典质量传递“瞬态薄层”的厚度与质松驰时间、质扩散系数以及质量扰动的强度和瞬时性强弱的定性相关关系 .

Mathematical model of laser beam irradiates the surface of a water-containing porous materials is presented, and related numerical method is used to solve the equations. The results indicate that heat and mass transfer is different from the description of classical heat and mass transfer theories, non-Fickian effects is more obvious than non-Fourier effects and should be taken into account as higher power laser beam irritates the surface of higher moisture content materials.

建立了快速高热流密度激光作用下含湿多孔材料传热传质数学模型,并采用恰当的数值处理方法进行了数值计算。结果表明,快速高热流密度激光作用下含湿多孔材料的传热传质具有经典热质传递理论难以解释的超常效应-非傅立叶与非费克效应,且非费克效应比非傅立叶效应更明显,较高含湿量的材料在高热流密度激光作用下的非费克效应应予以足够重视。

 
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