Wave-body interaction computation by a three-dimensional unsteady eulerian finite element method 用三维非定常欧拉有限元方法进行波体干扰计算
The eulerian-lagrange model can predict particle tracks; it is an effective model to study fluid-particle swirling flows 欧拉一拉格朗日方法能反映颗粒运动轨轨迹,是一种比较有用的研究方法。
Based on the two-fluid model, the attenuation process of blast waves in sprays is simulated by using the eulerian-lagrangian method 基于双流体模型,利用euler-lagrange组合方法,对爆炸波在液雾中的衰减过程进行了数值模拟。
In the research of simulation for problems with large distortion in fluid dynamics, one of popular numerical algorithms is so called ale ( arbitrary lagrangian-eulerian ) method 在大变形问题的数值模拟中,ale(arbitrarylagrangian-eulerian)方法是目前国内外普遍应用的方法之一。
A muscl type cell-centered finite-volume scheme is presented for solving the 3-d time-dependent euler equations cast in an arbitrary lagrangian-eulerian ( ale ) framework 构造了一种muscl(monotonicupwindschemesforconservationlaws)类型有限体积格心(cellcentered)格式对方程进行离散。
Arbitrary lagrangian-eulerian formulation is adopted to treat the moving interface between the fluid and the structure . the coupling algorithm is programmed based on ansy5.6 with apdl 在ansys5.6的基础上,应用其参数化设计语言apdl编制程序,控制流体计算和结构计算,实现耦合系统的求解。
The bird body is described using ale ( arbitrary lagrange'- eulerian method ) . the data in aspects of displacement, strain, stress and contact from in the process of deformation are obtained 得到了风挡整体结构的变形、位移、应变等几方面的数据,和实验结果进行了比较,结果吻合较好,验证了有限元模型的正确性。
In this paper, the general principles are introduced to establish the wave-motion equations by use of two descriptions ( lagrangian and eulerian descriptions ) in the continuum mechanics, when the finite deformation is taken into account 本文首先介绍了考虑有限变形时,用连续介质力学的两种描述法(lagrange描述法和euler描述法)建立波动方程的一般理论。
To include the effect of strain rate and shock heating, johnson-cook strength model with grilneisen equation of state ( eos ) is used for the armature . arbitrary lagrangian-eulerian ( ale ) algorithm is adopted 对电枢使用了johnson-cook硬化准则的强度模型和grneisen状态方程,考虑了应变率硬化和温度热软化的影响,并使用了任意lagrangian-eulerian算法(ale)。
In this dissertation, the numerical simulation method of the solid phase field based on the lagrangian description and the gas phase field based on the eulerian description is first used in the numerical simulation research of the gas-solid injectors 首次将固相场基于拉格朗日法和气相场基于欧拉法的数值模拟方法引入气固喷射器的数值模拟研究工作中,建立了合适的三维数理模型。