Comments on: 模拟流体中的粒子时应该使用哪种公式? - //www.denkrieger.com/blogs/what-formulation-should-i-use-for-particle-tracing-in-fluids 发布博客 Wed, 20 Nov 2024 08:56:41 +0000 hourly 1 https://wordpress.org/?v=5.7 By: 江豪 冯 //www.denkrieger.com/blogs/what-formulation-should-i-use-for-particle-tracing-in-fluids/#comment-37333 Wed, 20 Nov 2024 08:56:41 +0000 http://cn.staging.comsol.com/blogs?p=243341#comment-37333 您好,我想请教一下,要实现磁性粒子被外加磁场吸附在壁上,之后撤去磁场使磁性粒子从壁上脱落,应该怎样在粒子追踪模块下设置壁条件呢?

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By: Jianshen Li //www.denkrieger.com/blogs/what-formulation-should-i-use-for-particle-tracing-in-fluids/#comment-35403 Fri, 20 Sep 2024 03:14:47 +0000 http://cn.staging.comsol.com/blogs?p=243341#comment-35403 In reply to 杰 杨.

通常有两种做法,1.小球与容器尺寸相差不大,建议做流固耦合仿真;2.否则,可以使用流体流动颗粒跟踪接口,释放单个粒子并为粒子添加曳力、重力研究此问题。

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By: 杰 杨 //www.denkrieger.com/blogs/what-formulation-should-i-use-for-particle-tracing-in-fluids/#comment-35173 Wed, 11 Sep 2024 15:11:47 +0000 http://cn.staging.comsol.com/blogs?p=243341#comment-35173 我需要模拟一个直径一毫米的小钢球沿中心放下盛有蓖麻油的液体中,求速度的变化

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By: Haoze Wang //www.denkrieger.com/blogs/what-formulation-should-i-use-for-particle-tracing-in-fluids/#comment-34353 Fri, 16 Aug 2024 06:56:17 +0000 http://cn.staging.comsol.com/blogs?p=243341#comment-34353 In reply to Jiaxin He.

您好,可以使用壁距离接口,该接口的详细介绍建议参考说明手册。

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By: Jiaxin He //www.denkrieger.com/blogs/what-formulation-should-i-use-for-particle-tracing-in-fluids/#comment-34233 Tue, 13 Aug 2024 09:19:41 +0000 http://cn.staging.comsol.com/blogs?p=243341#comment-34233 您好,想计算粒子到壁面的距离,后处理的时候选择“壁距离”接口可以吗?这个接口的具体含义是什么呢?

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By: Haoze Wang //www.denkrieger.com/blogs/what-formulation-should-i-use-for-particle-tracing-in-fluids/#comment-33463 Thu, 18 Jul 2024 08:35:01 +0000 http://cn.staging.comsol.com/blogs?p=243341#comment-33463 In reply to Jiaxin He.

您好,如果流体接口中定义的密度和来自材料中的密度一致则没有影响,例如流场是不可压缩流动。

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By: Jiaxin He //www.denkrieger.com/blogs/what-formulation-should-i-use-for-particle-tracing-in-fluids/#comment-33333 Tue, 16 Jul 2024 07:15:36 +0000 http://cn.staging.comsol.com/blogs?p=243341#comment-33333 您好,我想问一下,粒子追踪设置曳力的时候,如果把密度设置为之前定义的流体密度会有什么影响吗

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By: 高 维 //www.denkrieger.com/blogs/what-formulation-should-i-use-for-particle-tracing-in-fluids/#comment-32533 Wed, 26 Jun 2024 08:35:59 +0000 http://cn.staging.comsol.com/blogs?p=243341#comment-32533 In reply to Haoze Wang.

您好,我设置的粒子粒径为0.5mm,在多孔介质中我的狭缝只有0.1mm,为什么粒子还是能够穿过狭缝而不是堵塞住呢?查询相关资料发现粒子追踪模块是将粒子考虑为质子,该如何模拟出粒子的堵塞情况呢?

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By: Xiaohan Jiang //www.denkrieger.com/blogs/what-formulation-should-i-use-for-particle-tracing-in-fluids/#comment-31213 Tue, 28 May 2024 01:48:21 +0000 http://cn.staging.comsol.com/blogs?p=243341#comment-31213 In reply to 玉霞 董.

在官网上可通过检索 Magnetophoretic Force 找到以下的链接:https://www.comsol.com/blogs/red-blood-cell-separation-flow-channel。这个案例已经下架了,您可试下软件中的 “磁泳力” 这个节点来仿真这个过程,若结果不太理想,建议看下粒子上所受到的力是否合理。

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By: 玉霞 董 //www.denkrieger.com/blogs/what-formulation-should-i-use-for-particle-tracing-in-fluids/#comment-30973 Tue, 21 May 2024 07:55:18 +0000 http://cn.staging.comsol.com/blogs?p=243341#comment-30973 请问有没有使用磁泳力的案例,我在粒子追踪模块加了磁泳力,但是感觉粒子没有受到力,想学习一下如何正确使用磁泳力,谢谢。

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