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A finite volume model for the hollow glass forming processes

机译:空心玻璃成型工艺的有限体积模型

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摘要

A finite volume model has been developed to determine the transient temperature distribution and instantaneous glass flow velocities throughout the pressing and blowing peridos of hollow glass forming processes. The glass is assumed to be incompressible and Newtonian fluid during forming. The glass is assumed to be incompressible and Newtonian fluid during forming. The system of conservation equations is discretized using finite volume method on unstructured meshes. The heat transfer and flow fields are assumed to be axisymmetric which reduces the solution domain into two dimensions. Thermo-mechanical coupling is solved using a decoupled algorithm in which thermal and flow analyses are performed i nan iterative manner. The lagrangian coordinate updating technique is used to define the boundary of the domain. The method is validated by the solution of blowing of an infinite isothermal cylinder. Blowing of an hollow glass article is modelled next.
机译:已经开发了有限体积模型以确定整个压制和吹风的瞬间玻璃流速的瞬态温度分布和瞬时玻璃流速。假设玻璃在成型期间是不可压缩的和牛顿液体。假设玻璃在成型期间是不可压缩的和牛顿液体。在非结构化网眼上使用有限体积法离散化保护方程系统。假设传热和流场是轴对称,其将溶液域减少到两个维度。使用去耦算法解决了热机械耦合,其中执行热量和流量分析I纳米迭代方式。拉格朗日坐标更新技术用于定义域的边界。该方法通过吹入无限等温圆柱的吹送来验证。接下来建模中空玻璃制品的吹气。

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