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- Keywords Aluminum foam;Gas-liquid flow;metal melt;bubble size distribution;Numerical simulation;Gas volume fraction;Multi-Reference Frame （MRF）; 泡沫铝;气液两相流;金属熔体;气泡尺寸分布;数值模拟;气含率;多重参考系法（MRF）;
- gas volume fraction 含气率
- In order to produce stable and intensive streamer corona, the O2 volume fraction in the flue gas should not be lower than 5%. 为了产生稳定而强烈的流光电晕，烟气中O2体积分数不应小于5%25。
- With bottom gas blowing at the tundish, the average residence time of steel liquid flow in the tundish can be prolonged effectively;the dead volume fraction can be reduced. 采用中间包底部吹气技术，当控制的吹气参数合理时，可以有效地延长钢液的平均停留时间，降低死区体积；
- The more liquid volume fraction in the tank is, the less finial pressure is. 相同充满率下，初始压力对工作时间影响较小。
- Rats in hypoxia groups were inhaled with the mixture of nitrogen gas (0.95 volume fraction) and oxygen (0.05 volume fraction) to establish acute hypoxia models, 2 hours every day and normoxia at other points of time that was the same as normal group. 缺氧1;3;5;7d组大鼠分别吸入氮气与大气的混合气体(氮气的体积分数为0.;95、氧气为0
- CONCLUSION The partition coefficient for volatile anesthetic in lipid emulsion accordes with volume fraction partition coefficient concept. 结论挥发性麻醉药在脂肪乳中的分配系数符合容积比分配系数的概念。
- Furthermore, the bond splitting tensile strength increases with addition of steel fiber volume fraction. 在一定范围内,随钢纤维体积率的增加,钢纤维混凝土与老混凝土粘结劈拉强度明显提高。
- Optimum wear reduction was obtained when the volume fraction of Kevlar pulp is 40 Vol%. 当纤维体积分数为40%25时，复合材料的比磨损率最小；
- The latter one was responsible for a change in solid volume fraction when the material passes the discon... 为在实际触变塑性成形工艺分析中的进一步应用奠定了理论基础。
- The experiment deter-mines their hardness,their microorganizations as well as their Carbide Volum Fraction. 对宏观硬度、碳化物数量与耐磨性进行了相关分析。
- To meet exhaust gas volume requirements of most diesel engines,the gas vo lume that the single-pipe ESCP can treat should be increased. 为满足大多数柴油机排气流量的要求，必须扩大单管静电旋风捕集器所能处理的排气流量。
- The volume fraction of methane,ethane, n -butane and propane are increased with the increase of dose. 甲烷、乙烷、丙烷和正丁烷的体积分数都随吸收剂量的增加而增加;
- The on line measurement method for the gas volume ratio of the lower conduit of cocurrent flotation machine is described. 论述了顺流浮选机下导管中气容率的在线测定方法。
- The effects of volume fraction and concrete strength on tensile strength of SFRC are analyzed with an experiment. 通过试验，分析了钢纤维混凝土极限抗拉强度与钢纤维体积掺率及基体强度等级的关系。
- Depending on the preexisting pressure and free head space in the receiving tank, the additional gas volume may be sufficient to overpressure the tank. 根据先前的压力和接收罐的顶部空间，增加的气体体积足以超出储罐。
- The major problems involved in fabricating large, high fiber volume fraction components by RTM, are discussed. 阐述了RTM工艺应用于大尺寸,高纤维含量构件时存在的主要问题。
- The actual flue gas volume and the concentration of oxygen is inversely proportional,and excess air coefficient is proportional. 而实际烟气量与氧浓度成反比,与过剩空气系数成正比。
- The compressibility of fabric preforms,involved in the fiber volume fraction(Vf) in the compress process,was studied. 研究了预定型织物在压实阶段的可压缩性,涉及压缩过程中纤维体积含量的变化特点。
- The influence of the injected gas volume on the output performanc e of positive displacement motor (PDM) is obvious in the process of aerated UBD. 在充气欠平衡钻井过程中,气体的注入量对马达的输出特性影响较大。
