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libini2233

银虫 (初入文坛)

[求助] Fluent 搅拌槽模拟 如何添加示踪剂 计算停留时间? 已有4人参与

求高手指点关于搅拌槽添加示踪剂 计算RTD的具体步骤,摸索好久还是不会,万分感谢!
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斑驳的时光

金虫 (正式写手)

【答案】应助回帖

对于MRF法,在ANSYS Fluent Users Guide P588有说
Particle trajectories and pathlines drawn by ANSYS Fluent use the velocity relative to the cell zone motion.For massless particles, the resulting path lines follow the streamlines based on relative velocity. For particles with mass, however, the particle tracks displayed are meaningless. Similarly, coupled discrete-phase calculations are meaningless.An alternative approach for particle tracking and coupled discrete-phase calculations with multiple reference frames is to track particles based on absolute velocity instead of relative velocity. To make this change, use the define/models/dpm/options/track-in-absolute-frame text command.Note, that the results may strongly depend on the location of walls inside the multiple reference frame. The particle injection velocities (specified in the Set Injection Properties Dialog Box (p. 2661)) are defined relative to the frame of reference in which the particles are tracked. By default, the injection velocities are specified relative to the local reference frame. If you enable the track-in-absolute frame option, the injection velocities are specified relative to the absolute frame.
6楼2016-08-04 16:02:28
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小七工作室1

新虫 (著名写手)

【答案】应助回帖

感谢参与,应助指数 +1
应该可以处理的,主要是计算什么?
2楼2015-02-02 09:31:42
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匿名

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3楼2015-02-28 18:49:59
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新虫 (正式写手)


【答案】应助回帖

你可以添加一些无质量的dpm粒子来进行追踪




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4楼2015-03-02 10:29:43
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