Comments on: 在 COMSOL Multiphysics® 中模拟点蚀 - by COMSOL //m.COMSOL.com/blogs/modeling-pitting-corrosion-in-comsol-multiphysics 发布博客 Tue, 24 Dec 2024 01:48:23 +0000 hourly 1 https://wordpress.org/?v=6.7.2 By: hao huang //m.COMSOL.com/blogs/modeling-pitting-corrosion-in-comsol-multiphysics/#comment-38583 Tue, 24 Dec 2024 01:48:23 +0000 http://cn.staging.comsol.com/blogs?p=275451#comment-38583 In reply to 校锋 胡.

您好！
感谢您的评论。

相关案例请查看：//m.COMSOL.com/model/pitting-corrosion-100101

如果有进一步问题，建议您联系 COMSOL 的技术支持团队：
在线支持中心：m.COMSOL.com/support
Email: support@comsol.com
谢谢！

]]> By: 校锋 胡 //m.COMSOL.com/blogs/modeling-pitting-corrosion-in-comsol-multiphysics/#comment-38303 Mon, 16 Dec 2024 07:37:26 +0000 http://cn.staging.comsol.com/blogs?p=275451#comment-38303 有这个模型的论文么

]]> By: 小乔 梁 //m.COMSOL.com/blogs/modeling-pitting-corrosion-in-comsol-multiphysics/#comment-38103 Mon, 09 Dec 2024 02:19:05 +0000 http://cn.staging.comsol.com/blogs?p=275451#comment-38103 In reply to Haoze Wang.

好的，谢谢您的解答

]]> By: 小乔 梁 //m.COMSOL.com/blogs/modeling-pitting-corrosion-in-comsol-multiphysics/#comment-38093 Mon, 09 Dec 2024 02:18:37 +0000 http://cn.staging.comsol.com/blogs?p=275451#comment-38093 好的，谢谢您

]]> By: Haoze Wang //m.COMSOL.com/blogs/modeling-pitting-corrosion-in-comsol-multiphysics/#comment-37973 Thu, 05 Dec 2024 08:59:31 +0000 http://cn.staging.comsol.com/blogs?p=275451#comment-37973 In reply to 小乔 梁.

您好，二维轴对称模型中，空间坐标系为（r,phi,z）。可以参考案例中的设置，在一个二维组件中重新设置模型，并添加您希望的边界条件。

]]> By: 小乔 梁 //m.COMSOL.com/blogs/modeling-pitting-corrosion-in-comsol-multiphysics/#comment-37843 Wed, 04 Dec 2024 02:41:58 +0000 http://cn.staging.comsol.com/blogs?p=275451#comment-37843 您好，这个案例是以二维轴对称模型定的，变量里面的z代表什么呢，我通过查找资料，发现是跟坐标系统有关系，是这么吗？那么我可以把它换成二维模型么？因为我想在上面把流动加上，有流入流出，谢谢您了

]]> By: Miles Hsin //m.COMSOL.com/blogs/modeling-pitting-corrosion-in-comsol-multiphysics/#comment-32373 Fri, 21 Jun 2024 02:48:15 +0000 http://cn.staging.comsol.com/blogs?p=275451#comment-32373 In reply to yongchao wang.

感谢您的耐心回答，对我很有帮助！

]]> By: yongchao wang //m.COMSOL.com/blogs/modeling-pitting-corrosion-in-comsol-multiphysics/#comment-32363 Fri, 21 Jun 2024 01:14:47 +0000 http://cn.staging.comsol.com/blogs?p=275451#comment-32363 In reply to 雨辰 辛.

1.模型中在远离腐蚀坑的边界上设置了“电解质电位”表示阴极反应的贡献，这个贡献可以是氧气还原反应的贡献，也可以是其它阴极反应（如：金属阴极或外加电流）的贡献；
2.可以在不设置“电解质电位”边界条件时，添加电极Fe表面氧的还原反应，实现大气环境中点蚀坑发展的仿真，可参考案例：//m.COMSOL.com/model/corrosion-under-an-evans-droplet-113981

]]> By: 雨辰 辛 //m.COMSOL.com/blogs/modeling-pitting-corrosion-in-comsol-multiphysics/#comment-32233 Wed, 19 Jun 2024 07:22:24 +0000 http://cn.staging.comsol.com/blogs?p=275451#comment-32233 Dear Dr. Ed Fontes,

I have several questions regarding electrochemistry.
Why is it possible to accurately simulate the pitting corrosion of iron without modeling the oxygen reduction reaction?
What is the effect of setting a constant electrolyte potential at positions far from the pit?
Can I describe the oxygen reduction reaction, which occurs as a cathodic reaction on the iron surface, without setting a constant electrolyte potential, by using electrode kinetics equations instead?

I look forward to your answer, thank you!

]]> By: 利刚 张 //m.COMSOL.com/blogs/modeling-pitting-corrosion-in-comsol-multiphysics/#comment-19603 Sat, 19 Nov 2022 12:22:19 +0000 http://cn.staging.comsol.com/blogs?p=275451#comment-19603 In reply to Ed Fontes.

谢谢

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