<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[ambu1230的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/ambu1230</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; ambu1230]]></copyright><item><title><![CDATA[湍动能输运方程推导]]></title><link>https://blog.youkuaiyun.com/ambu1230/article/details/146314940</link><guid>https://blog.youkuaiyun.com/ambu1230/article/details/146314940</guid><author>ambu1230</author><pubDate>Mon, 17 Mar 2025 14:44:03 +0800</pubDate><description><![CDATA[湍动能输运方程]]></description><category></category></item><item><title><![CDATA[OpenFoam学习(20221018)]]></title><link>https://blog.youkuaiyun.com/ambu1230/article/details/146162116</link><guid>https://blog.youkuaiyun.com/ambu1230/article/details/146162116</guid><author>ambu1230</author><pubDate>Mon, 10 Mar 2025 19:36:26 +0800</pubDate><description><![CDATA[OpenFOAM]]></description><category></category></item><item><title><![CDATA[槽道流添加扰动速度场MATLAB代码]]></title><link>https://blog.youkuaiyun.com/ambu1230/article/details/140163913</link><guid>https://blog.youkuaiyun.com/ambu1230/article/details/140163913</guid><author>ambu1230</author><pubDate>Wed, 03 Jul 2024 22:35:32 +0800</pubDate><description><![CDATA[【代码】槽道流添加扰动速度场MATLAB代码。]]></description><category></category></item><item><title><![CDATA[到底该用英文括号还是中文括号？]]></title><link>https://blog.youkuaiyun.com/ambu1230/article/details/139213968</link><guid>https://blog.youkuaiyun.com/ambu1230/article/details/139213968</guid><author>ambu1230</author><pubDate>Sun, 26 May 2024 13:43:21 +0800</pubDate><description><![CDATA[写的还挺详细的，不错。]]></description><category></category></item><item><title><![CDATA[MATLAB非均匀网格梯度计算]]></title><link>https://blog.youkuaiyun.com/ambu1230/article/details/138198649</link><guid>https://blog.youkuaiyun.com/ambu1230/article/details/138198649</guid><author>ambu1230</author><pubDate>Thu, 25 Apr 2024 21:02:06 +0800</pubDate><description><![CDATA[在matlab中，gradient函数可以很方便的对均匀网格进行梯度计算，但是对于非均匀网格，但是gradient却无法求解非均匀网格的梯度，这一点我之前犯过错误。我之前以为在gradient函数中指定x，y等坐标，其求解的就是非均匀网格梯度了，然而并不是。于是，今天下午开始写非均匀网格求梯度的函数。首先，函数的要求为：1、边界处采用二阶偏心差分2、内部网格点采用二阶中心差分3、计算三维矩阵的梯度。]]></description><category></category></item><item><title><![CDATA[Tecplot导出流场Movie]]></title><link>https://blog.youkuaiyun.com/ambu1230/article/details/137629842</link><guid>https://blog.youkuaiyun.com/ambu1230/article/details/137629842</guid><author>ambu1230</author><pubDate>Thu, 11 Apr 2024 10:49:10 +0800</pubDate><description><![CDATA[本人最近想利用Tecplot导出流场计算的视频，找了以下两种方法：1、直接一次性打开所有文件，导出视频；2、利用脚本每次打开一个文件，导出其照片，最后合成视频。]]></description><category></category></item><item><title><![CDATA[MATLAB如何批量更改文件名]]></title><link>https://blog.youkuaiyun.com/ambu1230/article/details/137156966</link><guid>https://blog.youkuaiyun.com/ambu1230/article/details/137156966</guid><author>ambu1230</author><pubDate>Fri, 29 Mar 2024 21:39:25 +0800</pubDate><description><![CDATA[在openfoam中，由于timePrecision设置的不合理，常常导致计算得到的文件夹名称的数字末尾多很多零，对于读取数据来说十分的不方便。如何更改为标准的，精确的，writeInterval的整数倍名称，需要一下三步操作。]]></description><category></category></item><item><title><![CDATA[OF小程序（自用）]]></title><link>https://blog.youkuaiyun.com/ambu1230/article/details/137156020</link><guid>https://blog.youkuaiyun.com/ambu1230/article/details/137156020</guid><author>ambu1230</author><pubDate>Fri, 29 Mar 2024 20:53:34 +0800</pubDate><description><![CDATA[读取OpenFOAM中每个文件夹的时刻的函数，每次都用的时候都找不到，这次放在网上。]]></description><category></category></item><item><title><![CDATA[湍流系统的混沌性质]]></title><link>https://blog.youkuaiyun.com/ambu1230/article/details/137052428</link><guid>https://blog.youkuaiyun.com/ambu1230/article/details/137052428</guid><author>ambu1230</author><pubDate>Tue, 26 Mar 2024 17:23:52 +0800</pubDate><description><![CDATA[同样的系统，边界条件一致，初始条件一致，采用不同的核并行，得到的系统的响应参数随着时间推进逐渐开始出现分叉，原因是由于细小的误差被不断放大。But，系统的统计特性依然是不变的。]]></description><category></category></item><item><title><![CDATA[MO尺度(大气边界层)]]></title><link>https://blog.youkuaiyun.com/ambu1230/article/details/136910290</link><guid>https://blog.youkuaiyun.com/ambu1230/article/details/136910290</guid><author>ambu1230</author><pubDate>Thu, 21 Mar 2024 22:44:51 +0800</pubDate><description><![CDATA[但是Liu将上面的热通量Q采用湍流热通量代替，即文中说是温度脉动和速度脉动的协方差，这个操作来源于Kapil Boundary-Layer Meteorol 2013，这个存在两个问题，这里插一句，这里热膨胀系数等于平均温度的倒数，我实验了一下，确实是，但是其原因并不清楚，从课程PPT中也看不出来，太菜了，，，而且，其没有出现热膨胀系数，而是用平均温度来代替，KADER 1990 JFM的说法来看，这两者是等价的。是等于0 的，但是对于大气边界层这类复杂的问题，显然这一项不等于0，那他们为啥还要这样做。]]></description><category></category></item><item><title><![CDATA[Channel Flow 区域图]]></title><link>https://blog.youkuaiyun.com/ambu1230/article/details/136765817</link><guid>https://blog.youkuaiyun.com/ambu1230/article/details/136765817</guid><author>ambu1230</author><pubDate>Sat, 16 Mar 2024 17:08:51 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[Linux终端后台运行Matlab程序]]></title><link>https://blog.youkuaiyun.com/ambu1230/article/details/136295404</link><guid>https://blog.youkuaiyun.com/ambu1230/article/details/136295404</guid><author>ambu1230</author><pubDate>Mon, 26 Feb 2024 11:38:18 +0800</pubDate><description><![CDATA[在终端下运行matlab程序时，常见的作法是直接进入matlab，然后run程序，但是一旦电脑断网，终端断联，那么程序就需要重新运行，对于有些非常耗时的程序，这时重新运行的时间成本就很大。还有一点，执行nohup，后台会输出一个nohup.out，这个与log文件内容是一样的。需要注意的是 命令结尾需要加上这一个指令&1与上面的]]></description><category></category></item><item><title><![CDATA[linux shell 脚本基础知识]]></title><link>https://blog.youkuaiyun.com/ambu1230/article/details/135365528</link><guid>https://blog.youkuaiyun.com/ambu1230/article/details/135365528</guid><author>ambu1230</author><pubDate>Wed, 03 Jan 2024 15:39:54 +0800</pubDate><description><![CDATA[解释错误，这是因为脚本格式为dos，需要转化为unix,在vim 里打开，输入：set ff =unix即可。需要对其进行chmod +x xxx是脚本具有执行权限；运行shell脚本时在文件名前加./bash不支持浮点数运算。]]></description><category></category></item><item><title><![CDATA[Tecplot绘制涡结构（Q准则）]]></title><link>https://blog.youkuaiyun.com/ambu1230/article/details/134794768</link><guid>https://blog.youkuaiyun.com/ambu1230/article/details/134794768</guid><author>ambu1230</author><pubDate>Mon, 04 Dec 2023 21:58:36 +0800</pubDate><description><![CDATA[Tecplot绘制涡结构(Q准则判别)并用温度进行染色。]]></description><category></category></item><item><title><![CDATA[2D槽道流]]></title><link>https://blog.youkuaiyun.com/ambu1230/article/details/134484024</link><guid>https://blog.youkuaiyun.com/ambu1230/article/details/134484024</guid><author>ambu1230</author><pubDate>Sat, 18 Nov 2023 21:24:49 +0800</pubDate><description><![CDATA[之前看槽道流时，一直无法在二维槽道流里计算出湍流状态，后来了解到二维槽道流需要额外添加随机扰动，但是这个体积力的植入方式一直不知道。施加定长体积力or固定压差能不能产生2d槽道湍流？]]></description><category></category></item><item><title><![CDATA[从视频提取音频的方式]]></title><link>https://blog.youkuaiyun.com/ambu1230/article/details/134462776</link><guid>https://blog.youkuaiyun.com/ambu1230/article/details/134462776</guid><author>ambu1230</author><pubDate>Fri, 17 Nov 2023 14:40:56 +0800</pubDate><description><![CDATA[缺点：视频超出500MB会得付费升级。]]></description><category></category></item><item><title><![CDATA[AI生成图片教程（基于DALL-E3）]]></title><link>https://blog.youkuaiyun.com/ambu1230/article/details/134398953</link><guid>https://blog.youkuaiyun.com/ambu1230/article/details/134398953</guid><author>ambu1230</author><pubDate>Tue, 14 Nov 2023 15:17:29 +0800</pubDate><description><![CDATA[今天登录GPT时发现openai的官网显示其有生成图片的模型DALL-E3，于是想试一试其效果如何。奈何ChatGPT只能在付费版上使用，但是这个DALL-E3其实免费使用。]]></description><category></category></item><item><title><![CDATA[瑞丽伯纳德会议视频]]></title><link>https://blog.youkuaiyun.com/ambu1230/article/details/134084645</link><guid>https://blog.youkuaiyun.com/ambu1230/article/details/134084645</guid><author>ambu1230</author><pubDate>Fri, 27 Oct 2023 21:52:01 +0800</pubDate><description><![CDATA[链接]]></description><category></category></item><item><title><![CDATA[cmd命令快速打开MATLAB]]></title><link>https://blog.youkuaiyun.com/ambu1230/article/details/133999998</link><guid>https://blog.youkuaiyun.com/ambu1230/article/details/133999998</guid><author>ambu1230</author><pubDate>Mon, 23 Oct 2023 21:50:24 +0800</pubDate><description><![CDATA[唯一的缺点是无法使用plot，这一点比不上linux系统，不过打开速度还是挺快的。]]></description><category></category></item><item><title><![CDATA[There are not enough slots available in the system to satisfy the 48 slots报错]]></title><link>https://blog.youkuaiyun.com/ambu1230/article/details/133999842</link><guid>https://blog.youkuaiyun.com/ambu1230/article/details/133999842</guid><author>ambu1230</author><pubDate>Mon, 23 Oct 2023 21:43:24 +0800</pubDate><description><![CDATA[多核运行时出现这个错误，减少核数运行正常
输出命令
添加
执行命令
解决。]]></description><category></category></item></channel></rss>