The thermal insulation theory was analyzed and the heat transfer model was simplified based un the Fourier heat transfer law. 分析了隔热原理,在傅里叶传热定律的基础上,简化传热模型。
For anisotropic materials Fourier's law must be formulated in a more generalized form. 对于各向异性的物质来说,傅里叶定律必须改写成具有更普遍意义的形式。
By using the qualities of Fourier transformation and the symmetry of the integrations, the L2 conservation law of Kawahara equation is proved. 利用Fourier变换及积分对称性给出了Kawahara方程L2守恒律的一种证明.同时,根据J。
A time dependent, two dimensional theory is developed to calculate thermally induced stress, strain and deformations by use of separation of variables in Fourier law and thermoelastic potential method in stess strain equilibrium equation. 由傅里叶瞬态导热方程和弹性体应力应变平衡方程入手,利用分离变量法和热弹性势法建立了晶体窗口在高能激光束照射下的瞬态温度分布、热变形和热应变分布关系式。
Based on the non-dimensional model of mobile law, this paper brings forth the mobile law of Finite Harmonic Acceleration and optimizes it by adopting the principle of Fourier transform, and applys this law in the design of cam outline. 基于运动规律无量纲模型,运用傅里叶级数变换原理提出了有限谐波加速度运动规律,对之进行了优化,并将这种运动规律应用于凸轮轮廓设计中。
The internal relation between viscosity and thermal conductivity coefficient has been revealed based on Fourier thermal conductivity law and Newton viscosity law. The transport characteristic of viscous is pointed out according to exchanging-coupling theory and its application to industrial control is discussed. 本文从Fourier热传导定律和Newton阻滞定律出发,阐明粘滞系数与热传导系数的内在联系,并用交换耦合理论指明粘滞系数的输运特性及其在工程上的应用。
Under laser pulse heating, a non-equilibrium heat and mass transfer model based on the non-Fourier law is developed for surface rapid melting and solidification process ( RMSP) of Uniphase binary alloys. 基于非Fourier定律,建立了脉冲激光加热条件下单相二元合金表面快速重熔和凝固过程的非平衡传热传质模型。
Based on theoretic analysis of Fourier heat transfer law and first thermodynamic law. we program the heat transfer numerical simulate programme of one dimension and of two dimensions that fit laser irradiation. 本文在用傅立叶(Fourier)热传导定律和热力学第一定律进行理论分析的基础上,独立编制了适合于激光辐照的一维和二维热传导数值模拟程序;
Base on the Fourier law and conservation of energy, and combine the finite difference, this dissertation deduce finite difference temperature model. 以傅里叶定律和能量守恒定律为基础,结合有限差分理论推导出有限差分温度计算模型。
A set of high-temperature and flowing calorimetric apparatus for determination of heat sinks of endothermic hydrocarbon fuels was set up which is based on one dimensional thermal conduction model of Fourier's law and Tian's equation. 根据傅立叶定律径向系统的一维传热模型结合Tian's方程建立了一套高温流动型热量计,用于吸热型碳氢燃料的热沉测定和引发剂筛选;
Surface model hypothesis will be used for water-drop vaporization in water/ metal fuel motor. In order to verify correctness of the hypothesis, the modified Fourier law was applied, and its physical meaning and application range were analyzed. 水/金属燃料发动机单液滴蒸发拟选用表面模型假设,为了验证此假设的正确性,采用了修正的傅立叶定律,并分析了其物理意义及适用范围。
According to Fourier's law and Kirchhoff's law, a mathematical model of prebaked anode current and temperature fields of aluminum reduction cell was built. 根据傅里叶传热定律和基尔霍夫导电定律,建立了预焙阳极铝电解槽阳极传热、导电的数学模型。
The mathematical model of general Fourier heat conduction law is discussed in the paper. Based on the hyperbolic heat conduction equation of non Fourier heat conduction law, an analytical solution of a semi infinite body has been derived under the first boundary condition. 讨论了通用傅里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的基于非傅里叶导热定律的双曲线型偏微分方程的解析解。
To investigate the heat transfer in the solid propellant before ignition, analyzed the meaning of Fourier Law and Modified Fourier Law and pointed out their application field and criterion. 为研究点火前固体推进剂内传热过程,分析了傅里叶定律和修正的傅里叶定律的数学物理意义及其适用范围和判断准则;
Experimental result shows that there is a kind of un-convention temperature distribution in the limit thickness specimen under laser irradiation. This phenomenon cannot be explained by the classical Fourier Law and defined as Pan-Fourier effect in order to explain laser bending mechanism further. 实验发现有限厚度材料在激光辐照作用下,其内部产生了用经典傅里叶定律无法解释的非常规温度分布,将其定义为泛傅里叶效应,用于进一步揭示激光弯曲机理的实质。
Fourier's law is no longer applicable in the problems with extreme low temperature or extreme high heat current density. 在极低温度或极高热流密度条件下傅立叶定律不再适用。
The FEM formula for computing temperature field is deduced based on Fourier law. 由傅里叶定律导出了考虑导热各向异性时的温度场有限元计算公式。
Fourier transform infrared ( FTIR) and Raman spectra of carbon nitride were calculated through Hooke's law. The observed FTIR and Raman spectra support the existence of α-and β-C 3N 4 in the films. 由虎克定律近似关系式计算了α和βC3N4的傅里叶变换红外光谱和Raman光谱,实验结果支持C&N共价键的存在。
However, under certain conditions when the relevant time scale is extremely small such as in the cases of thermo-explosion, nuclear fusion, very fast chemical reaction and the interaction of high power laser with materials, some modifications should be made for the Fourier's law. 但对于热爆炸,热核聚变,快速化学反应,强激光与物质相互作用这样一些时间尺度极短(与从非平衡态达到局部平衡态的时间相比)的情形,需对Fourier定律进行修正。
Heat conduction in a low dimensional system is anomalous and dose not obey Fourier law. The thermal conductivity of the FPU chains was numerically calculated by the molecular dynamics method. 采用分子动力学方法分析一维FPU模型的热传导,以研究低维系统的热传导是否遵循Fourier热传导定律。
The traditional Fourier heat conduction law leads to infinite velocity of heat propagation, that is, if a sudden change of temperature is made at some point on the body, it will be felt instantly everywhere. 传统的傅立叶导热定律隐含了热传播速度无限大的假设,即如果导热介质内某点处突然施加热扰动,介质其他部分会同时感受到温度的变化。
Classical Fourier heat conduction law can describe most of the unsteady heat conduction problems in common condition. 对于大多数常规条件下的非稳态热传导问题,傅里叶定律能够精确的描述。
The Fourier law that describes the relation between heat flux and temperature gradient is no longer suitable in transient heat propagation. 在瞬态传热下,传热学中描述热流密度与温度梯度之间关系的Fourier定律不再适用。
In the research of laser heat treatment, the continuous medium heat conductive equation which derived from Fourier law is the basic theory to be adopted usually to calculate the laser heat effect temperature field by many researchers. 现在,在激光对材料热作用研究中,按照傅里叶定律导出的连续介质热传导方程对激光热作用温度场求解,仍然是人们采用的基本理论。
And classical Navier-Stokes equations and Fourier law with nonslip boundary condition is never suitable for this kind of gas flow and heat transfer with high Kn, because continuity assumption does not hold now. 对于这种高Kn数渗流和传热,连续性假设不成立,不能使用传统的带无滑移边界条件的Navier-Stokes方程和Fourier定律来描述。