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- Its advantages are high speed and precision especially in multi phase system. 它在多组份,尤其是多相系统中具有计算速度快、精度高等优点。
- The multi phase flow interior ballistic model for grain and stick propellants are established, a practical engineering software system is completed. 建立了粒状药与管状药组成的混合装药的多相流内弹道理论模型,编制工程实用的软件系统。
- Multi phase PSZ micro_powders were prepared by low temperature combustion synthesis (LCS) method, with which nitrates were used as oxidizers while urea as fuels. 用水合硝酸盐作氧化剂、以尿素为燃料,根据推进化学计算原料的配比,进行了复相PSZ超细陶瓷粉的低温燃烧合成。
- The phase field method is proposed based on the general Ginzburg-Landau theory of phase transitions. 相场方法不需要跟踪固液界面,因此在模拟枝晶生长方面有独特的优势。
- This paper discusses the characteristics of continuous and microscopic phase field dynamics theory on describing phase transformation of alloys. 讨论了连续体相场动力学与微观相场动力学理论在描述合金相变方面各自的特点。
- The growth of aluminum solidification dendrite has been simulated under disturbed and undisturbed condition, which based on the phase field method. 在相场法数学模型基础上,对有扰动和无扰动情况下的铝金属凝固枝晶生长进行了模拟;
- The angular distributions of sputtered Al and Sn atoms ejected from the Al-Sn multi phase alloy bombarded by 30keV Ar+ ion have been measured with collector technique and RBS analysis. 用捕获膜技术和卢瑟福背散射(RBS)分析,测定Al-Sn多相合金在30keV Ar~+离子轰击时Al和Sn的溅射原子角分布。
- Based on 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。
- 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。
- The recent trends of microstructure simulation were also proposed, such as coupling phase diagram calculation and Phase Field Methods. 此外,介绍了显微组织模拟研究方面的最新动态,包括相图计算和相场法的应用。
- Results:CT signs of liver abscess were variable on multi phasic spiral CT scans and were correlative to pathologic processes. 结果:肝脓肿在螺旋CT扫描征象上具有多样性,其CT征象与肝脓肿所处时期密切相关。
- This paper is to build mathematic model of aluminum solidification microstructure simulation by the phase field method and study the influence of disturbing on dendrite growth. 对研究铝金属微观组织模拟相场法技术的数学模型及扰动对枝晶生长的影响进行了研究;
- You can also Phase field Tripods/Eradicator Hexapod to escape death or you can use it to crush over a lot of tier 1 &2 units without losing the tripod or Eradicator Hexapod. 你也可以把相场用在三脚/六脚上来逃避死亡或是让你可以在碾压1,2级单位是,不用损失任何单位。
- 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. 相场方法不需要跟踪固液界面,因此在模拟枝晶生长方面有独特的优势。
- 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。
- dynamic programming with multi phase 多阶段动态规划
- The Middle and Upper Ordovician carbonate reef and shoal assemblae originally formed in a rimmed shelf system , and then reworked by multi phases diagenesis and structural fracturing. 塔中中上奥陶统碳酸盐岩储层是在一发育良好的镶边陆棚体系中形成的礁、滩组合,并经过后期多次成岩和构造破裂作用改造而成。
- In recent years, phase field model(PFM) of alloy solidification based on solute trapping and solute drag was introduced as a powerful tool to simulate the process of solidification. 近年来发展起来的PFM模型根据“溶质捕捉”和“溶质牵引”两种机制对金属及合金快速凝固过程进行数学描述及模拟,较好地反映了金属凝固的物理本质。
- The effect of anisotropy of grain boundary energy on the kinetic of grain growth is simulated by phase field method,in which a time-dependent misorientation in grain boundary is introduced. 引入与时间有关的取向错配场变量,模拟了晶界能各向异性条件下晶粒长大的演化行为。模拟结果表明,与晶界能各向同性系统相比,随演化时间的延长,晶界能各向异性延迟晶粒的生长,使得晶粒的平均面积呈非线性变化;
- A technique for measuring phase field produced displacement under impact loading using digital speckle pattern interferometry (DSPI) with combining the digital subtraction and add mode is presented. 在撞击载荷下的数字散斑干涉法(DSPI)中,本文联合应用加法和减法两种模式提出了位相测试技术。