It is pointed out that the phase field method is very suitable to compute the 3d microstructure than other methods.
指出了相场方法非常适合于微观组织三维模拟,用其他方法则存在较大难度。
The entropy increase function, we has derived the phase field controlling equations which are thermodynamical consistent.
该模型以熵增加函数为基础,通过熵增加函数推导出热力学一致性的相场控制方程。
Numerical simulation based on phase field method is developed to describe polycrystalline solidification for pure material.
基于相场方法对包含多晶粒的纯物质凝固过程进行了数值模拟。
Nowsday, phase field model is a heated topic at home and abroad as an effect method in numerical simulation of grain growth.
而相场法作为一种模拟晶粒长大的有效方法,是目前国内外研究的热点。
The dendrite growth of pure metal in undercooled melts was simulated by using phase field model(PFM) and finite difference schemes.
采用相场模型和有限差分方法,模拟了过冷纯金属熔体的枝晶生长,计算区域为二维正方形均匀网格。
Theory and present research status of numerical simulation for eutectic solidification with multi-phase field method were expounded.
阐述了多相场法模拟共晶凝固原理和研究现状。
When the curvature is 0, we found that the difference between the phase field method and the finite difference method is very small.
我们发现与有限差分法相比较,在曲率为0,即边界为一条直线的时候,两者的差别很小。
The effect of elasticity on the microstructure evolution of alloys containing coherent precipitates was studied by phase field model.
采用相场模型对共格沉淀析出过程微观结构演化进行模拟研究。
At present, the measurement techniques for gas-solid two phases flow have become a desiderative problem to be solved in multi-phase field.
目前,气固两相流检测技术已成为多相流研究中的一个亟待解决的问题。
A multi-phase field model coupled with mass, momentum, energy and solute conservation equation was introduced to apply for macro simulation.
宏观部分着重介绍了一种耦合质量、动量、能量及溶质平衡方程的多相模型。
Phase field method is the one of popular numerical simulation methods. Recently, it has been become a research focus in solidification field.
相场法是凝固组织模拟中最有潜力的方法之一,近年来已成为凝固领域研究的热点。
Description of microstructure through field variables and the simulation of structural change based of phase field theory are also briefly introduced.
简介以场变数描述显微组织,并根据相场理论作组织变化的模拟。
Dendrite growth has been simulated with the phase field method and finite difference schemes on a two dimensional rectangular domain with a uniform square mesh.
采用相场模型和有限差分方法,模拟了过冷纯金属熔体的枝晶生长,计算区域为二维正方形均匀网格。
The directions of further research on the phase field method are aimed at better numerical arithmetic, more precise model, 3d quantitative simulation and utility.
以后进一步研究的重点方向是更优的数值算法、更精确的数值模型、三维定量模拟以及实用化研究。
Two principles of the phase field method are introduced, and the application of the phase field method for numerical simulation of solidification microstructure is expatiated.
介绍了相场方法的两种基本原理,阐述了相场方法在金属凝固过程微观组织形成模拟中的应用情况。
During this three-year modification phase, Harris will oversee the production of field change kits that will be used to retrofit ships and provide radio terminal sets for the LAMPS helicopters.
在为期三年的修正阶段中,哈里斯公司将利用其战场转换工具对舰艇进行改装,并为LAMPS直升机提供无线电终端设备。
Instructors with Fidelity's Field Services Division will work with trainees in the first phase of aviator schooling, when they are taught basics such as wing dynamics and how to approach a runway.
教师和Fidelity公司的野战勤务分部将与受训者一起进行飞行员学校的第一阶段工作,届时将教授基础课程如机翼动力以及如何在跑道上降落。
Near the end of the expansion phase, the ring of plasma breaks open, and some of the plasma appears to escape the pull of the magnetic field loop.
在日珥的扩张接近结束时,等离子体构成的圆环猛然裂开,一些等离子似乎要挣脱磁场拉力的束缚。
The centroid position of the focal spot directly depending on intensity distribution and phase slope distribution of near field is derived and its physical meaning is described.
进一步推导了焦斑质心位置对光束近场强度分布和相位斜率分布的依赖关系式,并对该式清晰的物理意义进行了阐述。
Liu, Xiongjun: Condensed matter theory and ultra-cold atoms, focused on topological phase of quantum matter, synthetic gauge field and spin-orbit coupling effect, many-body physics.
刘雄军:凝聚态理论和超冷原子气。主要关注量子物质拓扑相,摹拟规范场和自旋轨道耦合效应,以及多体物理。
The flow field and temperature field of the uniformity phase fluid were measured by PIV and the steadystate method during the state of onflow.
用粒子成像测速技术(PIV)和稳态法分别测量均相流体在热管生物反应器中湍流时的流场、温度场;
The phase-field method is applied to simulate dendritic growth in the three-dimensional space.
采用相场方法模拟纯物质三维枝晶生长。
It has been studied that how the squeezing of field and that of phase vary with each other by computing the fluctuations of field and phase in some special states.
通过计算一些特殊状态中相位涨落和场的涨落,初步研究了场的压缩与相位压缩的关系。
From the derivation, cause and physical significance of the extra phase difference of the coherent field of Gaussian beams can clearly be seen.
从这一导出过程可以清楚地看出高斯束相干场附加位相差的成因及其物理意义。
The affecting law of structure fluctuation and energy fluctuation on dendrite growth in pure undercooled melt was studied by simulation of a phase-field method.
采用捕获液态界面改进的相场方法,系统地研究了结构起伏、能量起伏对过冷纯金属熔体中树枝晶生长的影响规律。
Simulation of turbulence atomization jet in the air-water two phase flow field was performed.
对水在空气中湍动雾化射流的气液两相流场进行了数值模拟。
Simulation of turbulence atomization jet in the air-water two phase flow field was performed.
对水在空气中湍动雾化射流的气液两相流场进行了数值模拟。
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