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中文摘要：
对离心力场下钛合金熔体补缩过程中渗流流量公式进行理论推导，并对渗流流动机制进行分析，同时依据渗流流量公式和相似物理模拟理论，提出离心力场下物理模拟钛合金熔体补缩渗流流动时的相似准则。研究表明：离心力场下钛合金熔体补缩过程中的渗流流量公式，可根据雷诺数分为4个阶段进行推导：低速渗流、达西渗流、过渡区渗流以及高速区渗流，4个阶段的补缩渗流流量均随着旋转速度和离心半径的增加而增大，并且模拟流体粘度与钛合金熔体粘度之比为0．365。
英文摘要：
The quantitative formula of infiltration flux during titanium alloy melt feeding in centrifugal field was deducted. The infiltration flow mechanism in centrifugal field was analyzed. Based on the formula of infiltration flux and the similar physical simulation theory, the similarity criterion was presented. The results show that, the deduction of the formula of infiltration flux during titanium alloy melt feeding in centrifugal field can be divided into four stages in terms of Reynolds number, that is low-speed infiltration, Darcy infiltration, transient zone infiltration and high-speed infiltration. The feeding infiltration fluxes at four stages increase with increasing of rotation speed and centrifugal radius. The viscosity ratio of the model fluid to the titanium alloy melt is 0.365.
同期刊论文项目
同项目期刊论文
Numerical simulation and experimental investigation of two filling methods in vertical centrifugal c
Microstructure and properties of pure titanium processed by equal-channel angular pressing at room t
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