首页> 外国专利> METHOD AND DEVICE FOR SIMULATING AND ANALYZING VISCOELASTIC FLUID FLOWING THROUGH AND EJECTING FROM CHANNEL HAVING BOUNDARY BETWEEN FIRST FLUID FLOWING THROUGH CHANNEL AND SECOND FLUID, AND MEDIUM OR WAVEFORM CONTAINING SET OF INSTRUCTIONS FOR DIRECTING SIMULATION AND ANALYSIS TO INSTRUCTION-EXECUTING DEVICE

METHOD AND DEVICE FOR SIMULATING AND ANALYZING VISCOELASTIC FLUID FLOWING THROUGH AND EJECTING FROM CHANNEL HAVING BOUNDARY BETWEEN FIRST FLUID FLOWING THROUGH CHANNEL AND SECOND FLUID, AND MEDIUM OR WAVEFORM CONTAINING SET OF INSTRUCTIONS FOR DIRECTING SIMULATION AND ANALYSIS TO INSTRUCTION-EXECUTING DEVICE

机译：用于模拟和分析粘弹性流体通过并从第一流体通过通道和第二流体之间的边界流出的通道和介质或波形包含指令的指令集的方法和装置

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摘要

PPROBLEM TO BE SOLVED: To provide coupled algorithms for viscoelastic ink ejection simulations. PSOLUTION: Two finite difference algorithms are provided for viscoelastic ink ejection simulations. The first algorithm is first-order accurate in time, while the second algorithm is second-order accurate in time. Each of these two algorithms seamlessly couples or incorporates several features: (1) a coupled level set-projection method for incompressible immiscible two-phase fluid flows; (2) a higher-order Godunov type algorithm for the convection terms in the momentum equations and level set convection equation; (3) the central difference for viscosity, surface tension, and upper-convected derivative terms; (4) an equivalent circuit for inflow pressure (or inflow rate). In the first algorithm, a simple first-order upwind algorithm is designed for the convection term in the viscoelastic stress equations. But in the second algorithm, a second-order Godunov type upwind scheme is employed for the convection term in the viscoelastic stress equations. PCOPYRIGHT: (C)2007,JPO&INPIT

机译：

要解决的问题：提供用于粘弹性喷墨仿真的耦合算法。

解决方案：提供了两种用于粘弹性喷墨模拟的有限差分算法。第一种算法的时间精度是一阶的，而第二种算法的时间精度是二阶的。这两种算法中的每一种都无缝地耦合或合并了几个功能：（1）用于不可压缩的不混溶两相流体流的耦合液位设定-投影方法; （2）针对动量方程和水平集对流方程中的对流项的高阶Godunov型算法; （3）粘度，表面张力和上转换对数导数项的中心差; （4）流入压力（或流入速率）的等效电路。在第一种算法中，为粘弹性应力方程中的对流项设计了一个简单的一阶迎风算法。但是在第二种算法中，粘弹性应力方程中的对流项采用了二阶Godunov型迎风方案。

版权：（C）2007，日本特许厅＆INPIT 展开▼

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公开/公告号JP2006318481A

专利类型
公开/公告日2006-11-24

原文格式PDF
申请/专利权人 SEIKO EPSON CORP;
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申请/专利号JP20060135647
发明设计人 YU JIUN-DER;
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申请日2006-05-15
分类号G06F17/50;B41J2/045;B41J2/055;
国家 JP
入库时间 2022-08-21 21:11:31

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