在常物性条件下，考虑有内部质量源时，对水中的金属腐蚀物杂质在加热管道中的紊流对流传质进行了理论分析和数值计算；
The theoretical analysis and numerical calculation are carried out for turbulent convection mass transfer in heated tubes with consideration of internal mass sources under constant properties.
计算结果表明流速越大，过饱和度越小，结垢过程越易为表面反应所控制；流速越小，过饱和度越大，结垢过程越易为对流传质所控制，且往往发生在液壁温差较大，壁温较高的情况下。
The calculation results show that the greater the flow velocity, the lower the supersaturation degree, and the easier the scale formation process will be controlled by a surface reaction.
电磁约束成型技术具有无模、电磁搅拌、强冷却等工艺特点。其凝固过程为一对流传热传质的动态过程。
Electromagnetic constrained forming technology features die-free, electromagnetic stirring and strong cooling, its solidification is a dynamic process of convective heat and mass transfer.
电磁约束成型技术具有无模、电磁搅拌、强冷却等工艺特点。其凝固过程为一对流传热传质的动态过程。
Electromagnetic constrained forming technology features die-free, electromagnetic stirring and strong cooling, its solidification is a dynamic process of convective heat and mass transfer.
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