1) variable-domain variation
变域变分
1.
Pseudo-potential variable-domain variational FEM for hybrid problem of transonic airfoil;
跨音速翼型杂交问题的赝势函数变域变分有限元法
2) variable domain variation
变域变分
1.
In order to overcome this difficulty, Liu Gao-Lian developed a variable domain variation finite element method, in which the unknown interfaces were regarded as the boundaries of one variable domain and considered as unknown parameters in the variable domain variation, so the s.
刘高联针对未知界面问题发展了一种变域变分有限元方法,该方法将未知界面看作是一个变化区域的边界,采用变域变分将未知界面结合在变分泛函中,使其与求解流场的控制方程结合起来,从而将未知界面的求解和流场的求解完全耦合进行,因而是一种处理未知界面的独特工具,极适合于气动外形的设计求解。
2.
In this paper, in order to solve the variable domain problem, by using the variable domain variation formula and discrete the variation function by the self-adapting finite element, the extremum problem of algebraic function was introduced.
本文在用有限元法求解变域问题时,利用变域变分公式将问题化为求泛函的驻值,但该驻值常常是一个鞍点,因此给计算带来不便,我们在这里利用最小二乘法将求驻值的问题转化为求另一泛函的极值问题,然后采用LMF方法和共轭梯度法求解极值问题。
3) variable-domain variational method
变域变分法
4) Variation domain
变分域
5) domain variation
区域变分
6) variable-domain variational FEM
变域变分有限元
1.
The variable-domain variational FEM for shape design of cascades is then introduced based on the stationary condition of functionals.
该文针对含分流叶片的亚声速平面叶栅的反命题,运用多块分区搭接网格技术将流动区域分成两部分生成计算网格,再根据泛函的驻值必要条件,应用变域变分有限元方法对分流叶栅叶型进行了反设计。
补充资料：变火
1.相传古代钻木取火，一年之中，随着季节的变换，取火的木材也相应变换，称"变火"。语出《周礼．夏官．司爟》:"司爟掌行火之政令，四时变国火以救时疾"。郑玄注:"郑司农说以鄹子曰:'春取榆柳之火，夏取枣杏之火，季夏取桑柘之火，秋取柞楢之火，冬取槐檀之火。'"贾公彦疏:"火虽是一，四时以木为变，所以禳去时气之疾也"。孙诒让正义:"谓五时各以其木为燧，钻以取火。《庄子．外物篇》云'木与木相摩则然'是也。"
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参考词条