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  • 有关ICEM中的非结构网格加密

    Meshy
    6
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    Y

    计算域是否对称,可否切出1/3生成网格后旋转

  • 对于RP气泡长大方程疑问

    Algorithm
    2
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    Y

    @youhaoyu 1719302824186.jpg 看了本比较通用的书,里面把我第一张图里(1.15)直接写在方程里面的(我感觉这样写比较合适)。那么这个R0和Pg0我还是不理解什么意思,有没有大佬解释解释

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    @李东岳 好的老师,我再测试测试看看效果。也可能是因为我没有用OpenFOAM自己的ThirdParty来编译那部分库,而是使用的自己下的scotch对一部分进行编译导致的。

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    半新手,看其他论坛上可以实现这样的操作,即把一个复杂的几何体分成多部分分别划分网格之后再进行拟合,但是我自己试了下建块merge后导入到fluent中出错,请问该如何操作呢?不胜感激

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    两月三年

    @Yung 这个 CAD 可以导出的格式有点少呀,0b3894d9-c7b1-4e5a-b38a-a1907754d22a-image.png ,输出-其他格式里面我这个版本只有这几个,你可以试一下 *.stl,*.igs不过我都没用过,不确定到底可不可以。

  • 气泡破裂模型

    Algorithm
    18
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    Y

    @AppleKiller 感谢,我再看看,以前也接触过这些资料,感觉用欧拉法求解器为基础修改的拉格朗日求解器不大好,没怎么深入去学习。我再看看这些思路,感谢

  • OpenFoam柴油机模拟求指导

    OpenFOAM
    8
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    L

    @李东岳 感谢老师,我已在那个帖子上上传了

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    C

    @RQLI_CFD 感谢,我研究研究

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    As an application of this geometric formulation we prove that the solution map of the incompressible Euler equation, associating intial data in Hs(Rn) to the corresponding solution at time t > 0, is nowhere locally uniformly continuous and nowhere differentiable. by Hasan Inci (2013)

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    G

    @cuimai 个人感觉solids4Foam有点不稳定,我用它自带算例也跑不通。cfdonline也有很多人反应有bug:135:

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    HTML文件,内容如下

    <div component="composer" class="composer<!-- IF resizable --> resizable<!-- ENDIF resizable --><!-- IF !isTopicOrMain --> reply<!-- ENDIF !isTopicOrMain -->"> <div class="composer-container"> <nav class="navbar navbar-fixed-top mobile-navbar hidden-md hidden-lg"> <div class="btn-group"> <button class="btn btn-sm btn-primary composer-discard" data-action="discard" tabindex="-1"><i class="fa fa-times"></i></button> <button class="btn btn-sm btn-primary composer-minimize" data-action="minimize" tabindex="-1"><i class="fa fa-minus"></i></button> </div> <!-- IF isTopic --> <div class="category-name-container"> <span class="category-name"></span> <i class="fa fa-sort"></i> </div> <!-- ENDIF isTopic --> <!-- IF !isTopicOrMain --> <h4 class="title">[[topic:composer.replying_to, "{title}"]]</h4> <!-- ENDIF !isTopicOrMain --> <div class="btn-group"> <button class="btn btn-sm btn-primary composer-submit" data-action="post" tabindex="-1"><i class="fa fa-chevron-right"></i></button> </div> </nav> <div class="row title-container"> <!-- IF showHandleInput --> <div data-component="composer/handle"> <input class="handle form-control" type="text" tabindex="1" placeholder="[[topic:composer.handle_placeholder]]" value="{handle}" /> </div> <!-- ENDIF showHandleInput --> <div data-component="composer/title"> <!-- IF isTopicOrMain --> <input class="title form-control" type="text" tabindex="1" placeholder="[[topic:composer.title_placeholder]]" value="{title}"/> <!-- ELSE --> <span class="title form-control">[[topic:composer.replying_to, "{title}"]]</span> <!-- ENDIF isTopicOrMain --> <ul class="dropdown-menu quick-search-results hidden"> {{{each posts}}} <li> <a href="{config.relative_path}/post/{posts.pid}"> {buildAvatar(posts.user, "sm", true)} <span class="quick-search-title">{posts.topic.title}</span> <br/> <p class="snippet"> {posts.snippet} </p> <small class="post-info pull-right"> <span class="fa-stack" style="{function.generateCategoryBackground, posts.category}"><i style="color:{posts.category.color};" class="fa {posts.category.icon} fa-stack-1x"></i></span> {posts.category.name} &bull; <span class="timeago" title="{posts.timestampISO}"></span> </small> </a> </li> <!-- IF !@last --> <li role="separator" class="divider"></li> <!-- ENDIF --> {{{end}}} <!-- IF multiplePages --> <li class="text-center"> <a href="{url}"> [[search:see-more-results, {matchCount}]] </a> </li> <!-- ENDIF multiplePages --> </ul> </div> <!-- IF isTopic --> <div class="category-list-container hidden-sm hidden-xs"></div> <!-- ENDIF isTopic --> <div class="pull-right draft-icon hidden-xs hidden-sm"></div> <div class="btn-group pull-right action-bar hidden-sm hidden-xs"> <button class="btn btn-default composer-discard" data-action="discard" tabindex="-1"><i class="fa fa-times"></i> [[topic:composer.discard]]</button> <button class="btn btn-primary composer-submit" data-action="post" tabindex="6"><i class="fa fa-check"></i> [[topic:composer.submit]]</button> </div> </div> <div class="category-tag-row"> <div class="btn-toolbar formatting-bar"> <ul class="formatting-group"> <!-- BEGIN formatting --> <!-- IF formatting.spacer --> <li class="spacer"></li> <!-- ELSE --> <!-- IF !formatting.mobile --> <li tabindex="-1" data-format="{formatting.name}" title="{formatting.title}"><i class="{formatting.className}"></i></li> <!-- ENDIF !formatting.mobile --> <!-- ENDIF formatting.spacer --> <!-- END formatting --> <!--[if gte IE 9]><!--> <!-- IF privileges.upload:post:image --> <li class="img-upload-btn hide" data-format="picture" tabindex="-1" title="[[modules:composer.upload-picture]]"> <i class="fa fa-file-image-o"></i> </li> <!-- ENDIF privileges.upload:post:image --> <!-- IF privileges.upload:post:file --> <li class="file-upload-btn hide" data-format="upload" tabindex="-1" title="[[modules:composer.upload-file]]"> <span class="fa-stack"> <i class="fa fa-file-o fa-stack-1x"></i> <i class="fa fa-arrow-up fa-stack-1x"></i> </span> </li> <!-- ENDIF privileges.upload:post:file --> <!--<![endif]--> <!-- IF allowTopicsThumbnail --> <li tabindex="-1"> <i class="fa fa-th-large topic-thumb-btn topic-thumb-toggle-btn hide" title="[[topic:composer.thumb_title]]"></i> </li> <div class="topic-thumb-container center-block hide"> <form id="thumbForm" method="post" class="topic-thumb-form form-inline" enctype="multipart/form-data"> <img class="topic-thumb-preview"></img> <div class="form-group"> <label for="topic-thumb-url">[[topic:composer.thumb_url_label]]</label> <input type="text" id="topic-thumb-url" class="form-control" placeholder="[[topic:composer.thumb_url_placeholder]]" /> </div> <div class="form-group"> <label for="topic-thumb-file">[[topic:composer.thumb_file_label]]</label> <input type="file" id="topic-thumb-file" class="form-control" /> </div> <div class="form-group topic-thumb-ctrl"> <i class="fa fa-spinner fa-spin hide topic-thumb-spinner" title="[[topic:composer.uploading]]"></i> <i class="fa fa-times topic-thumb-btn hide topic-thumb-clear-btn" title="[[topic:composer.thumb_remove]]"></i> </div> </form> </div> <!-- ENDIF allowTopicsThumbnail --> <form id="fileForm" method="post" enctype="multipart/form-data"> <!--[if gte IE 9]><!--> <input type="file" id="files" name="files[]" multiple class="gte-ie9 hide"/> <!--<![endif]--> <!--[if lt IE 9]> <input type="file" id="files" name="files[]" class="lt-ie9 hide" value="Upload"/> <![endif]--> </form> </ul> </div> </div> <div class="row write-preview-container"> <div class="write-container"> <div class="help-text"> <span class="help hidden">[[modules:composer.compose]] <i class="fa fa-question-circle"></i></span> <span class="toggle-preview hide">[[modules:composer.show_preview]]</span> </div> <div class="pull-right draft-icon hidden-md hidden-lg"></div> <textarea class="write" tabindex="4"></textarea> </div> <div class="hidden-sm hidden-xs preview-container"> <div class="help-text"> <span class="toggle-preview">[[modules:composer.hide_preview]]</span> </div> <div class="preview well"></div> </div> </div> <!-- IF isTopicOrMain --> <div class="tag-row"> <div class="tags-container"> <div class="btn-group dropup <!-- IF !tagWhitelist.length -->hidden<!-- ENDIF !tagWhitelist.length -->" component="composer/tag/dropdown"> <button class="btn btn-default dropdown-toggle" data-toggle="dropdown" type="button"> <span class="visible-sm-inline visible-md-inline visible-lg-inline"><i class="fa fa-tags"></i></span> <span class="caret"></span> </button> <ul class="dropdown-menu"> <!-- BEGIN tagWhitelist --> <li data-tag="@value"><a href="#">@value</a></li> <!-- END tagWhitelist --> </ul> </div> <input class="tags" type="text" class="form-control" placeholder="[[tags:enter_tags_here, {minimumTagLength}, {maximumTagLength}]]" tabindex="5"/> </div> </div> <!-- ENDIF isTopicOrMain --> <!-- IF isTopic --> <ul class="category-selector visible-xs visible-sm"> </ul> <!-- ENDIF isTopic --> <div class="imagedrop"><div>[[topic:composer.drag_and_drop_images]]</div></div> <div class="resizer"><div class="trigger text-center"><i class="fa"></i></div></div> </div> </div>
  • 0 赞同
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    李东岳

    厉害厉害了老铁 你回国了么?

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    1 帖子
    3k 浏览

    用STARCCM做船舶阻力分析,考虑升沉和纵倾,之前流域底部设置为速度入口,结果会收敛。考虑浅水效应即流域底部的影响时,我把底部的边界条件修改为壁面 结果不收敛 且提示如图警告-the mesh may have non-positive volume cells,请问前辈是壁面条件不能修改为壁面而是其他,还是修改为壁面后需要再修改其他的地方,谢谢![替代文字](图片地IMG_20190419_170601.jpg 址)

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    2422ba2b-f9b8-402e-936e-8075325aae10-image.png 例如我生成一个part名字叫多“cavity1”,但是导入到fluent里面会多出“cavity1:007,cavity1:008,cavity1:008shadow,”这几个边界fb6ad2d6-0c7d-4266-a7b4-fa752482f0a6-image.png 。相应的网格也被分裂出好多细块。微信图片_20190126110946.jpg 微信图片_20190126110950.jpg

  • 三维圆柱绕流案例

    OpenFOAM
    6
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    P

    @李东岳 好的 那我换个版本吧

  • surfaceScalarField可视化后处理方法?

    OpenFOAM
    7
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    @李东岳 过奖了老师:mianmo:

  • 关于PFC与Openfoam耦合问题

    OpenFOAM
    2
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    李东岳

    一般来说公开发出来的求解器,不会有这么明显的错误。只会有小bug

  • ICEM机翼二维结构化网格划分求救

    Meshy
    6
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    N

    @bestucan 好的 谢谢提醒 我试试

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    cfd_xfxC

    thinkpad t480s i7 8550u 16G内存
    平时写论文、做ppt用,也可以开虚拟机改求解器算算小规模问题,真要数值计算还得远程服务器:140:

  • CFD青年成长支持计划(2021)

    公告
    137
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    F

    想问一下李老师这个计划还有吗!!很想要这本湍流模型:mianmo: