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cfdonline上面是通过给定出口处的速度和入口处的流量/流速来定水位。但是这种方法会造成出口附近流场失真，如果你不关心这个部位的流场，可以用这种方法试一下

这有点像我用starccm+和abaqus一起计算时候报错的情况，就莫名其妙的报错了...

image.png

@队长别开枪
感谢前辈，采用几何重构方法后确实解决了这个问题~:ok3:

@李东岳
感谢东岳老师的分享，我先照着该教程试一试

问题已解决，在瞬态结构的设置里选中流固耦合界面，在左下方的“数据传输”选项中选择“所有系统耦合数据传递”即可。

各位前辈好，关于外流场计算中的动压、总压等有些疑问，想和大家请教一下：
对于不可压缩的流体，总压=静压+动压。OF的多相流计算中，初始条件中需要给一个参考压力p_rgh，然后经计算得到总压p。
那么，以一个初始位置在水位以上的结构物（即没有静水压力）为例，当结构物受到波浪冲击时，结构物所受到的流体压力可以认为全部是动压吗？或者说，OF计算出的在自由液面处的压力都是动压？

在计算多相流动网格案例时，计算一段时间后库朗数突然增大并导致计算发散。起初以为是网格变形过大导致的发散，但查看日志文件和结果发现，计算并非是结构物受到波浪冲击后达到最大变形时终止的，而是在逐渐回到原位置时终止的，此时相分数alpha.water超过了1并在急剧增大。这时结构物附近有一定的越流（如下图所示，截图截得不太整齐请大家见谅），且计算停止时（44.2s）的气液交界面显然是有很大问题的。因此我认为应该是相方程计算不收敛进而导致的整个计算终止。
微信图片_202203281625522.png

微信图片_202203281625521.png

微信图片_20220328162552.png

日志文件中相分数在44.076s开始大于1：44.076.png
最后计算崩溃：44.202.png

因此，想请问大家是否在多相流、动网格的计算中是否遇到过类似的问题，有什么办法可以解决这种相分数越界的问题吗？

想了一下，虽然网格有变形但整个过程中网格拓扑不变，是否有办法根据该单元的拓扑来提取这个单元的压力时程呢？

@bestucan

如果是计算时要实时计算边界条件，这个可能符合你的要求：
http://openfoamwiki.net/index.php/Contrib/groovyBC#Usage_of_the_boundary_condition

感谢回复，需要的确实是在计算中实时计算的边界条件，我先了解一下:xinxin:

snappyHexMesh边界层这个问题有的时候确实不太好处理。目前我也没有什么太好的建议。看看有没有其他大佬关注关注 :jingya:

@number44
看起来确实是相关的，我再详细看下这个文件，谢谢前辈！

同问，我也出现了这个问题，不知道该不该去调整

下面为后续的报错信息，辛苦各位同学和老师，感谢！！！

[ubuntu:330341] *** Process received signal *** at ??:? [ubuntu:330453] *** Process received signal *** [ubuntu:330341] Signal: Floating point exception (8) [ubuntu:330341] Signal code: (-6) [ubuntu:330341] Failing at address: 0x3e800050a65 at ??:? [94] #7 at ??:? [78] #8 __libc_start_main[ubuntu:330341] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7fcc84b7e4c0] [ubuntu:330341] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38)[0x7fcc84b7e438] [ubuntu:330341] [ 2] [ubuntu:330453] Signal: Floating point exception (8) [ubuntu:330453] Signal code: (-6) [ubuntu:330453] Failing at address: 0x3e800050ad5 [ubuntu:330453] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7f6677a5d4c0] [ubuntu:330453] [ 1] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7fcc84b7e4c0] [ubuntu:330341] [ 3] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38)[0x7f6677a5d438] [ubuntu:330453] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7f6677a5d4c0] [ubuntu:330453] [ 3] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam7sumProdIdEEdRKNS_5UListIT_EES5_+0x2d)[0x7fcc86035f1d] [ubuntu:330341] [ 4] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam7sumProdIdEEdRKNS_5UListIT_EES5_+0x2d)[0x7f6678f14f1d] [ubuntu:330453] [ 4] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam3PCG5solveERNS_5FieldIdEERKS2_h+0xb0b)[0x7fcc85e4234b] [ubuntu:330341] [ 5] at ??:? [ubuntu:330402] *** Process received signal *** /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam3PCG5solveERNS_5FieldIdEERKS2_h+0xb0b)[0x7f6678d2134b] [ubuntu:330453] [ 5] [ubuntu:330402] Signal: Floating point exception (8) [ubuntu:330402] Signal code: (-6) [ubuntu:330402] Failing at address: 0x3e800050aa2 [ubuntu:330402] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7f923bdb74c0] [ubuntu:330402] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38)[0x7f923bdb7438] [ubuntu:330402] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7f923bdb74c0] [ubuntu:330402] [ 3] ?/opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so(_ZN4Foam8fvMatrixIdE15solveSegregatedERKNS_10dictionaryE+0x15b)[0x7fcc8855fbab] [ubuntu:330341] [ 6] olaFlow(_ZN4Foam8fvMatrixIdE5solveERKNS_10dictionaryE+0x191)[0x4db5f1] [ubuntu:330341] [ 7] olaFlow[0x44db4e] [ubuntu:330341] [ 8] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7fcc84b69840] [ubuntu:330341] [ 9] olaFlow[0x456269] [ubuntu:330341] *** End of error message *** /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so(_ZN4Foam8fvMatrixIdE15solveSegregatedERKNS_10dictionaryE+0x15b)[0x7f667b43ebab] [ubuntu:330453] [ 6] olaFlow(_ZN4Foam8fvMatrixIdE5solveERKNS_10dictionaryE+0x191)[0x4db5f1] [ubuntu:330453] [ 7] olaFlow[0x44db4e] [ubuntu:330453] [ 8] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7f6677a48840] [ubuntu:330453] [ 9] olaFlow[0x456269] [ubuntu:330453] *** End of error message *** /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam7sumProdIdEEdRKNS_5UListIT_EES5_+0x2d)[0x7f923d26ef1d] [ubuntu:330402] [ 4] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam3PCG5solveERNS_5FieldIdEERKS2_h+0xb0b)[0x7f923d07b34b] [ubuntu:330402] [ 5] ? in "/lib/x86_64-linux-gnu/libc.so.6" [91] #9 at ??:? [75] #7 at ??:? [95] #8 __libc_start_main/opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so(_ZN4Foam8fvMatrixIdE15solveSegregatedERKNS_10dictionaryE+0x15b)[0x7f923f798bab] [ubuntu:330402] [ 6] olaFlow(_ZN4Foam8fvMatrixIdE5solveERKNS_10dictionaryE+0x191)[0x4db5f1] [ubuntu:330402] [ 7] olaFlow[0x44db4e] [ubuntu:330402] [ 8] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7f923bda2840] [ubuntu:330402] [ 9] olaFlow[0x456269] [ubuntu:330402] *** End of error message *** at ??:? [ubuntu:330384] *** Process received signal *** [ubuntu:330384] Signal: Floating point exception (8) [ubuntu:330384] Signal code: (-6) [ubuntu:330384] Failing at address: 0x3e800050a90 [ubuntu:330384] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7f861028e4c0] [ubuntu:330384] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38)[0x7f861028e438] [ubuntu:330384] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7f861028e4c0] [ubuntu:330384] [ 3] at ??:? [ubuntu:330417] *** Process received signal *** [ubuntu:330417] Signal: Floating point exception (8) [ubuntu:330417] Signal code: (-6) [ubuntu:330417] Failing at address: 0x3e800050ab1 [ubuntu:330417] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7f72e021f4c0] [ubuntu:330417] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38)[0x7f72e021f438] [ubuntu:330417] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7f72e021f4c0] [ubuntu:330417] [ 3] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam7sumProdIdEEdRKNS_5UListIT_EES5_+0x2d)[0x7f8611745f1d] [ubuntu:330384] [ 4] at ??:? [79] #8 __libc_start_main/opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam3PCG5solveERNS_5FieldIdEERKS2_h+0xb0b)[0x7f861155234b] [ubuntu:330384] [ 5] ?/opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam7sumProdIdEEdRKNS_5UListIT_EES5_+0x2d)[0x7f72e16d6f1d] [ubuntu:330417] [ 4] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam3PCG5solveERNS_5FieldIdEERKS2_h+0xb0b)[0x7f72e14e334b] [ubuntu:330417] [ 5] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so(_ZN4Foam8fvMatrixIdE15solveSegregatedERKNS_10dictionaryE+0x15b)[0x7f8613c6fbab] [ubuntu:330384] [ 6] olaFlow(_ZN4Foam8fvMatrixIdE5solveERKNS_10dictionaryE+0x191)[0x4db5f1] [ubuntu:330384] [ 7] olaFlow[0x44db4e] [ubuntu:330384] [ 8] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7f8610279840] [ubuntu:330384] [ 9] olaFlow[0x456269] [ubuntu:330384] *** End of error message *** in "/lib/x86_64-linux-gnu/libc.so.6" [78] #9 /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so(_ZN4Foam8fvMatrixIdE15solveSegregatedERKNS_10dictionaryE+0x15b)[0x7f72e3c00bab] [ubuntu:330417] [ 6] olaFlow(_ZN4Foam8fvMatrixIdE5solveERKNS_10dictionaryE+0x191)[0x4db5f1] [ubuntu:330417] [ 7] olaFlow[0x44db4e] [ubuntu:330417] [ 8] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7f72e020a840] [ubuntu:330417] [ 9] olaFlow[0x456269] [ubuntu:330417] *** End of error message *** at ??:? [ubuntu:330407] *** Process received signal *** [ubuntu:330407] Signal: Floating point exception (8) [ubuntu:330407] Signal code: (-6) [ubuntu:330407] Failing at address: 0x3e800050aa7 at ??:? [ubuntu:330316] *** Process received signal *** [ubuntu:330316] Signal: Floating point exception (8) [ubuntu:330316] Signal code: (-6) [ubuntu:330316] Failing at address: 0x3e800050a4c [ubuntu:330407] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7f7ed4e984c0] [ubuntu:330407] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38)[0x7f7ed4e98438] [ubuntu:330407] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7f7ed4e984c0] [ubuntu:330407] [ 3] [ubuntu:330316] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7f43261c64c0] [ubuntu:330316] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38)[0x7f43261c6438] [ubuntu:330316] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7f43261c64c0] [ubuntu:330316] [ 3] in "/lib/x86_64-linux-gnu/libc.so.6" [95] #9 /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam7sumProdIdEEdRKNS_5UListIT_EES5_+0x2d)[0x7f7ed634ff1d] [ubuntu:330407] [ 4] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam7sumProdIdEEdRKNS_5UListIT_EES5_+0x2d)[0x7f432767df1d] [ubuntu:330316] [ 4] ?/opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam3PCG5solveERNS_5FieldIdEERKS2_h+0xb0b)[0x7f7ed615c34b] [ubuntu:330407] [ 5] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam3PCG5solveERNS_5FieldIdEERKS2_h+0xb0b)[0x7f432748a34b] [ubuntu:330316] [ 5] in "/lib/x86_64-linux-gnu/libc.so.6" [79] #9 /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so(_ZN4Foam8fvMatrixIdE15solveSegregatedERKNS_10dictionaryE+0x15b)[0x7f7ed8879bab] [ubuntu:330407] [ 6] olaFlow(_ZN4Foam8fvMatrixIdE5solveERKNS_10dictionaryE+0x191)[0x4db5f1] [ubuntu:330407] [ 7] olaFlow[0x44db4e] [ubuntu:330407] [ 8] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7f7ed4e83840] [ubuntu:330407] [ 9] olaFlow[0x456269] [ubuntu:330407] *** End of error message *** /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so(_ZN4Foam8fvMatrixIdE15solveSegregatedERKNS_10dictionaryE+0x15b)[0x7f4329ba7bab] [ubuntu:330316] [ 6] olaFlow(_ZN4Foam8fvMatrixIdE5solveERKNS_10dictionaryE+0x191)[0x4db5f1] [ubuntu:330316] [ 7] olaFlow[0x44db4e] [ubuntu:330316] [ 8] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7f43261b1840] [ubuntu:330316] [ 9] olaFlow[0x456269] [ubuntu:330316] *** End of error message *** ?? at ??:? [94] #8 __libc_start_main?? at ??:? [ubuntu:330379] *** Process received signal *** [ubuntu:330379] Signal: Floating point exception (8) [ubuntu:330379] Signal code: (-6) [ubuntu:330379] Failing at address: 0x3e800050a8b [ubuntu:330379] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7fd834b6e4c0] [ubuntu:330379] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38)[0x7fd834b6e438] [ubuntu:330379] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7fd834b6e4c0] [ubuntu:330379] [ 3] in "/lib/x86_64-linux-gnu/libc.so.6" [94] #9 /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam7sumProdIdEEdRKNS_5UListIT_EES5_+0x2d)[0x7fd836025f1d] [ubuntu:330379] [ 4] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam3PCG5solveERNS_5FieldIdEERKS2_h+0xb0b)[0x7fd835e3234b] [ubuntu:330379] [ 5] at ??:? [ubuntu:330323] *** Process received signal *** [ubuntu:330323] Signal: Floating point exception (8) [ubuntu:330323] Signal code: (-6) [ubuntu:330323] Failing at address: 0x3e800050a53 [ubuntu:330323] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7fdf7c7694c0] [ubuntu:330323] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38)[0x7fdf7c769438] [ubuntu:330323] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7fdf7c7694c0] [ubuntu:330323] [ 3] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam7sumProdIdEEdRKNS_5UListIT_EES5_+0x2d)[0x7fdf7dc20f1d] [ubuntu:330323] [ 4] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so(_ZN4Foam8fvMatrixIdE15solveSegregatedERKNS_10dictionaryE+0x15b)[0x7fd83854fbab] [ubuntu:330379] [ 6] olaFlow(_ZN4Foam8fvMatrixIdE5solveERKNS_10dictionaryE+0x191)[0x4db5f1] [ubuntu:330379] [ 7] olaFlow[0x44db4e] [ubuntu:330379] [ 8] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7fd834b59840] [ubuntu:330379] [ 9] olaFlow[0x456269] [ubuntu:330379] *** End of error message *** /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam3PCG5solveERNS_5FieldIdEERKS2_h+0xb0b)[0x7fdf7da2d34b] [ubuntu:330323] [ 5] at ??:? [75] #8 __libc_start_main/opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so(_ZN4Foam8fvMatrixIdE15solveSegregatedERKNS_10dictionaryE+0x15b)[0x7fdf8014abab] [ubuntu:330323] [ 6] olaFlow(_ZN4Foam8fvMatrixIdE5solveERKNS_10dictionaryE+0x191)[0x4db5f1] [ubuntu:330323] [ 7] olaFlow[0x44db4e] [ubuntu:330323] [ 8] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7fdf7c754840] [ubuntu:330323] [ 9] olaFlow[0x456269] [ubuntu:330323] *** End of error message *** ? at ??:? [ubuntu:330389] *** Process received signal *** [ubuntu:330389] Signal: Floating point exception (8) [ubuntu:330389] Signal code: (-6) [ubuntu:330389] Failing at address: 0x3e800050a95 at ??:? [ubuntu:330311] *** Process received signal *** [ubuntu:330311] Signal: Floating point exception (8) [ubuntu:330311] Signal code: (-6) [ubuntu:330311] Failing at address: 0x3e800050a47 [ubuntu:330311] [ 0] [ubuntu:330389] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7fe3de54b4c0] [ubuntu:330389] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38)[0x7fe3de54b438] [ubuntu:330389] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7fe3de54b4c0] [ubuntu:330389] [ 3] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7fa2535b84c0] [ubuntu:330311] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38)[0x7fa2535b8438] [ubuntu:330311] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7fa2535b84c0] [ubuntu:330311] [ 3] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam7sumProdIdEEdRKNS_5UListIT_EES5_+0x2d)[0x7fe3dfa02f1d] [ubuntu:330389] [ 4] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam7sumProdIdEEdRKNS_5UListIT_EES5_+0x2d)[0x7fa254a6ff1d] [ubuntu:330311] [ 4] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam3PCG5solveERNS_5FieldIdEERKS2_h+0xb0b)[0x7fa25487c34b] [ubuntu:330311] [ 5] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam3PCG5solveERNS_5FieldIdEERKS2_h+0xb0b)[0x7fe3df80f34b] [ubuntu:330389] [ 5] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so(_ZN4Foam8fvMatrixIdE15solveSegregatedERKNS_10dictionaryE+0x15b)[0x7fa256f99bab] [ubuntu:330311] [ 6] olaFlow(_ZN4Foam8fvMatrixIdE5solveERKNS_10dictionaryE+0x191)[0x4db5f1] [ubuntu:330311] [ 7] olaFlow[0x44db4e] [ubuntu:330311] [ 8] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7fa2535a3840] [ubuntu:330311] [ 9] olaFlow[0x456269] [ubuntu:330311] *** End of error message *** /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so(_ZN4Foam8fvMatrixIdE15solveSegregatedERKNS_10dictionaryE+0x15b)[0x7fe3e1f2cbab] [ubuntu:330389] [ 6] olaFlow(_ZN4Foam8fvMatrixIdE5solveERKNS_10dictionaryE+0x191)[0x4db5f1] [ubuntu:330389] [ 7] olaFlow[0x44db4e] [ubuntu:330389] [ 8] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7fe3de536840] [ubuntu:330389] [ 9] olaFlow[0x456269] [ubuntu:330389] *** End of error message *** in "/lib/x86_64-linux-gnu/libc.so.6" [75] #9 [93] #0 Foam::error::printStack(Foam::Ostream&) at ??:? [ubuntu:330400] *** Process received signal *** [ubuntu:330400] Signal: Floating point exception (8) [ubuntu:330400] Signal code: (-6) [ubuntu:330400] Failing at address: 0x3e800050aa0 [ubuntu:330400] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7ff1e15af4c0] [ubuntu:330400] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38)[0x7ff1e15af438] [ubuntu:330400] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7ff1e15af4c0] [ubuntu:330400] [ 3] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam7sumProdIdEEdRKNS_5UListIT_EES5_+0x2d)[0x7ff1e2a66f1d] [ubuntu:330400] [ 4] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam3PCG5solveERNS_5FieldIdEERKS2_h+0xb0b)[0x7ff1e287334b] [ubuntu:330400] [ 5] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so(_ZN4Foam8fvMatrixIdE15solveSegregatedERKNS_10dictionaryE+0x15b)[0x7ff1e4f90bab] [ubuntu:330400] [ 6] olaFlow(_ZN4Foam8fvMatrixIdE5solveERKNS_10dictionaryE+0x191)[0x4db5f1] [ubuntu:330400] [ 7] olaFlow[0x44db4e] [ubuntu:330400] [ 8] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7ff1e159a840] [ubuntu:330400] [ 9] olaFlow[0x456269] [ubuntu:330400] *** End of error message *** ? at ??:? [ubuntu:330305] *** Process received signal *** [ubuntu:330305] Signal: Floating point exception (8) [ubuntu:330305] Signal code: (-6) [ubuntu:330305] Failing at address: 0x3e800050a41 [ubuntu:330305] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7fac1b5164c0] [ubuntu:330305] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38)[0x7fac1b516438] [ubuntu:330305] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7fac1b5164c0] [ubuntu:330305] [ 3] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam7sumProdIdEEdRKNS_5UListIT_EES5_+0x2d)[0x7fac1c9cdf1d] [ubuntu:330305] [ 4] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam3PCG5solveERNS_5FieldIdEERKS2_h+0xb0b)[0x7fac1c7da34b] [ubuntu:330305] [ 5] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so(_ZN4Foam8fvMatrixIdE15solveSegregatedERKNS_10dictionaryE+0x15b)[0x7fac1eef7bab] [ubuntu:330305] [ 6] olaFlow(_ZN4Foam8fvMatrixIdE5solveERKNS_10dictionaryE+0x191)[0x4db5f1] [ubuntu:330305] [ 7] olaFlow[0x44db4e] [ubuntu:330305] [ 8] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7fac1b501840] [ubuntu:330305] [ 9] olaFlow[0x456269] [ubuntu:330305] *** End of error message *** [109] #0 Foam::error::printStack(Foam::Ostream&) at ??:? [93] #1 Foam::sigFpe::sigHandler(int) at ??:? [93] #2 ? at ??:? [109] #1 Foam::sigFpe::sigHandler(int) in "/lib/x86_64-linux-gnu/libc.so.6" [93] #3 double Foam::sumProd<double>(Foam::UList<double> const&, Foam::UList<double> const&) at ??:? [109] #2 ? at ??:? [93] #4 Foam::PCG::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const in "/lib/x86_64-linux-gnu/libc.so.6" [109] #3 double Foam::sumProd<double>(Foam::UList<double> const&, Foam::UList<double> const&) at ??:? [93] #5 Foam::fvMatrix<double>::solveSegregated(Foam::dictionary const&) at ??:? [109] #4 Foam::PCG::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const at ??:? [109] #5 Foam::fvMatrix<double>::solveSegregated(Foam::dictionary const&) at ??:? [93] #6 Foam::fvMatrix<double>::solve(Foam::dictionary const&) at ??:? [93] #7 at ??:? [109] #6 ?Foam::fvMatrix<double>::solve(Foam::dictionary const&) at ??:? [93] #8 __libc_start_main at ??:? [109] #7 ? in "/lib/x86_64-linux-gnu/libc.so.6" [93] #9 -------------------------------------------------------------------------- Primary job terminated normally, but 1 process returned a non-zero exit code. Per user-direction, the job has been aborted. -------------------------------------------------------------------------- at ??:? [109] #8 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" [109] #9 ? at ??:? [ubuntu:330431] *** Process received signal *** ? at ??:? [ubuntu:330390] *** Process received signal *** [ubuntu:330431] Signal: Floating point exception (8) [ubuntu:330431] Signal code: (-6) [ubuntu:330431] Failing at address: 0x3e800050abf [ubuntu:330431] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7f9bda55a4c0] [ubuntu:330431] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38)[0x7f9bda55a438] [ubuntu:330431] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7f9bda55a4c0] [ubuntu:330431] [ 3] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam7sumProdIdEEdRKNS_5UListIT_EES5_+0x2d)[0x7f9bdba11f1d] [ubuntu:330431] [ 4] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam3PCG5solveERNS_5FieldIdEERKS2_h+0xb0b)[0x7f9bdb81e34b] [ubuntu:330431] [ 5] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so(_ZN4Foam8fvMatrixIdE15solveSegregatedERKNS_10dictionaryE+0x15b)[0x7f9bddf3bbab] [ubuntu:330431] [ 6] olaFlow(_ZN4Foam8fvMatrixIdE5solveERKNS_10dictionaryE+0x191)[0x4db5f1] [ubuntu:330431] [ 7] olaFlow[0x44db4e] [ubuntu:330431] [ 8] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7f9bda545840] [ubuntu:330431] [ 9] olaFlow[0x456269] [ubuntu:330431] *** End of error message *** [ubuntu:330390] Signal: Floating point exception (8) [ubuntu:330390] Signal code: (-6) [ubuntu:330390] Failing at address: 0x3e800050a96 [ubuntu:330390] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7f944a96c4c0] [ubuntu:330390] [ 1] /lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38)[0x7f944a96c438] [ubuntu:330390] [ 2] /lib/x86_64-linux-gnu/libc.so.6(+0x354c0)[0x7f944a96c4c0] [ubuntu:330390] [ 3] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZN4Foam7sumProdIdEEdRKNS_5UListIT_EES5_+0x2d)[0x7f944be23f1d] [ubuntu:330390] [ 4] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libOpenFOAM.so(_ZNK4Foam3PCG5solveERNS_5FieldIdEERKS2_h+0xb0b)[0x7f944bc3034b] [ubuntu:330390] [ 5] /opt/OpenFOAM-5.0/platforms/linux64GccDPInt32Opt/lib/libfiniteVolume.so(_ZN4Foam8fvMatrixIdE15solveSegregatedERKNS_10dictionaryE+0x15b)[0x7f944e34dbab] [ubuntu:330390] [ 6] olaFlow(_ZN4Foam8fvMatrixIdE5solveERKNS_10dictionaryE+0x191)[0x4db5f1] [ubuntu:330390] [ 7] olaFlow[0x44db4e] [ubuntu:330390] [ 8] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7f944a957840] [ubuntu:330390] [ 9] olaFlow[0x456269] [ubuntu:330390] *** End of error message *** -------------------------------------------------------------------------- mpirun noticed that process rank 95 with PID 0 on node ubuntu exited on signal 8 (Floating point exception). --------------------------------------------------------------------------

在找资料的过程中发现了关于sampleDict中可用type的说明，包括uniform, face, midPoint, midPointAndFace, curve, cloud（之前在苏军伟前辈的博客中看到过相关介绍，但当时并无curve类型）。

可以看到是有针对曲线的类型(curve)，但是没有给出具体的做法，后面会尝试用这个提取一下曲面上的压力看看。
sampling type1.png

preCICE很amazing，用好了应该比自己改求解器简单高效 https://www.bilibili.com/video/BV1iT4y1P7e7/
（现在发帖竟然需要间隔300s:jingya: ）

@cfd_上弦月 已经解决了，点击左侧的选项''Zone Style''，确定内部流场对应的zone（以上面的图片为例，我这里是Step 1737 Incr 0）。选择''Surfaces''标签，然后在''Surfaces to Plot''处右键选择All surfaces，内部的流体域就能显示出来了。

@Cr 你好 我是把消波边界调整为2D消波边界了 然后可以计算了。

但是提取出来的坝前波面结果很奇怪，我的坝体振幅在三个方向均只有0.4m（初始水深设置的是50m），而水深却会突然变成0。提取出的波面时程曲线如下，暂时没有找到是什么原因导致的这种现象，还请各位老师指教。微信图片_20201009170300.png

@东岳 好的东岳老师！ :ok3:
最近也是刚开始试着改写求解器，顿感困难重重，确实需要多锻炼多积累。

@cccrrryyy 好的！谢谢~:xinxin:

@李东岳 Fluent对用户来说其实都没有并行、分区、合并这种概念。印象很深，我刚转到OpenFOAM的时候才“发现”原来并行计算之前是需要分区的，自然分完区后也是需要合并的。虽然这个过程在我知道了之后很符合直觉，也慢慢习惯，但不得不说这方面Fluent做的真的很好。计算前设置好并行数量，跑完算例之后直接在GUI上看云图，流畅的一比。

我记得Fluent用的是Metis，好像本来是开源的后来商业化了？会不会跟它有关，商业化的东西在用户体验这块肯定是好的。