@bestucan 感谢前辈的回复，目前问题已经解决

在编译OpenFOAM之前，需要先编译ThirdParty，但OpenFOAM WiKi中的Ubuntu18.04版安装教程里面好像并没有“编译ThirdParty这一步”，希望以后大家注意吧

各位前辈好！

我目前在Ubuntu18.04下面相安装openfoam3.0.0,参考了openfoamwiki有关在Ubuntu 18.04安装of 3.0.1的教程，教程连接：链接文本

自己一步步完全按照wiki上面的教程安装，安装到第14步 编译openfoam的时候，编译一会就报错如下：

g++-5 -m64 -Dlinux64 -DWM_ARCH_OPTION=64 -DWM_DP -DWM_LABEL_SIZE=32 -Wall -Wextra -Wold-style-cast -Wnon-virtual-dtor -Wno-unused-parameter -Wno-invalid-offsetof -O3  -DNoRepository -ftemplate-depth-100  -IlnInclude -I. -I/home/abc/OpenFOAM/OpenFOAM-3.0.0/src/OpenFOAM/lnInclude -I/home/abc/OpenFOAM/OpenFOAM-3.0.0/src/OSspecific/POSIX/lnInclude   -fPIC -c reaction/reactions/makeLangmuirHinshelwoodReactions.C -o /home/abc/OpenFOAM/OpenFOAM-3.0.0/platforms/linux64GccDPInt32Opt/src/thermophysicalModels/specie/reaction/reactions/makeLangmuirHinshelwoodReactions.o
reaction/reactions/makeReactions.C: In function ‘void __static_initialization_and_destruction_0(int, int)’:
reaction/reactions/makeReactions.C:106:1: internal compiler error: 段错误
 }
 ^
g++-5: internal compiler error: 段错误 (program cc1plus)
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-5/README.Bugs> for instructions.
make: *** [/home/abc/OpenFOAM/OpenFOAM-3.0.0/platforms/linux64GccDPInt32Opt/src/thermophysicalModels/specie/reaction/reactions/makeReactions.o] Error 4
/home/abc/OpenFOAM/OpenFOAM-3.0.0/wmake/rules/General/transform:8: recipe for target '/home/abc/OpenFOAM/OpenFOAM-3.0.0/platforms/linux64GccDPInt32Opt/src/thermophysicalModels/specie/reaction/reactions/makeReactions.o' failed
make: *** 正在等待未完成的任务....
abc@abc-X11DAi-N:~/OpenFOAM/OpenFOAM-3.0.0$ 

麻烦哪位前辈能够指点以下怎么解决呢？ 谢谢

各位前辈好！

我在compressibleInterFoam中引入了空化源项，现在调用自己写的非线性SGS模型计算的时候，流场初始速度10m/s，计算一段时间后，maxU会突然增大，导致流场发散掉，下面是速度暴增的过程

MULES: Solving for alpha.water
Liquid phase volume fraction = 0.997517  Min(alpha.water) = 0.000412402  Max(alpha.water) = 1
  Min(alpha.vapor) = -8.20677e-13  Max(alpha.vapor) = 0.999588
diagonal:  Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
smoothSolver:  Solving for T, Initial residual = 4.32259e-05, Final residual = 2.38488e-09, No Iterations 2
min(T) 290.144
GAMG:  Solving for p_rgh, Initial residual = 4.54434e-06, Final residual = 7.05483e-10, No Iterations 3
max(U) 13.9186
min(p_rgh) 1843.8
GAMGPCG:  Solving for p_rgh, Initial residual = 3.62757e-07, Final residual = 4.88638e-10, No Iterations 1
max(U) 13.9184
min(p_rgh) 1843.67
ExecutionTime = 275.32 s


 Integral of alpha.water = 0.00190802  [0 3 0 0 0 0 0]
fieldAverage fieldAverage1 output:
    Calculating averages

Courant Number mean: 0.00487524 max: 0.135574
Time = 0.011952

MULES: Solving for alpha.water
Liquid phase volume fraction = 0.997517  Min(alpha.water) = 0.000413145  Max(alpha.water) = 1
  Min(alpha.vapor) = -4.79172e-13  Max(alpha.vapor) = 0.999587
diagonal:  Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
smoothSolver:  Solving for T, Initial residual = 4.324e-05, Final residual = 2.42709e-09, No Iterations 2
min(T) 290.146
GAMG:  Solving for p_rgh, Initial residual = 5.42286e-06, Final residual = 7.32723e-10, No Iterations 3
max(U) 26.57
min(p_rgh) 1813.11
GAMGPCG:  Solving for p_rgh, Initial residual = 3.66982e-07, Final residual = 5.21535e-10, No Iterations 1
max(U) 25.4251
min(p_rgh) 1817.97
ExecutionTime = 275.6 s


fieldAverage fieldAverage1 output:
    Calculating averages

Courant Number mean: 0.00487537 max: 0.135663
Time = 0.011953

MULES: Solving for alpha.water
Liquid phase volume fraction = 0.997517  Min(alpha.water) = 0.000412369  Max(alpha.water) = 1
  Min(alpha.vapor) = -8.14016e-13  Max(alpha.vapor) = 0.999588
diagonal:  Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
smoothSolver:  Solving for T, Initial residual = 4.32537e-05, Final residual = 2.41625e-09, No Iterations 2
min(T) 290.148
GAMG:  Solving for p_rgh, Initial residual = 5.31025e-06, Final residual = 6.64697e-10, No Iterations 3
max(U) 20.2828
min(p_rgh) 1797.39
GAMGPCG:  Solving for p_rgh, Initial residual = 3.95326e-07, Final residual = 5.53382e-10, No Iterations 1
max(U) 20.6401
min(p_rgh) 1803.66
ExecutionTime = 275.88 s


fieldAverage fieldAverage1 output:
    Calculating averages

Courant Number mean: 0.00487547 max: 0.135752
Time = 0.011954

MULES: Solving for alpha.water
Liquid phase volume fraction = 0.997516  Min(alpha.water) = 0.000412357  Max(alpha.water) = 1
  Min(alpha.vapor) = -2.22555e-12  Max(alpha.vapor) = 0.999588
diagonal:  Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
smoothSolver:  Solving for T, Initial residual = 4.32478e-05, Final residual = 2.41079e-09, No Iterations 2
min(T) 290.15
GAMG:  Solving for p_rgh, Initial residual = 4.91279e-06, Final residual = 6.3296e-10, No Iterations 3
max(U) 30.2344
min(p_rgh) 1778.9
GAMGPCG:  Solving for p_rgh, Initial residual = 4.09173e-07, Final residual = 3.01626e-10, No Iterations 1
max(U) 29.9168
min(p_rgh) 1779.32
ExecutionTime = 276.17 s


fieldAverage fieldAverage1 output:
    Calculating averages

Courant Number mean: 0.00487556 max: 0.135842
Time = 0.011955

MULES: Solving for alpha.water
Liquid phase volume fraction = 0.997516  Min(alpha.water) = 0.000412479  Max(alpha.water) = 1
  Min(alpha.vapor) = -4.44089e-16  Max(alpha.vapor) = 0.999588
diagonal:  Solving for rho, Initial residual = 0, Final residual = 0, No Iterations 0
smoothSolver:  Solving for T, Initial residual = 4.32198e-05, Final residual = 2.70013e-09, No Iterations 2
min(T) 290.153
GAMG:  Solving for p_rgh, Initial residual = 1.71158e-05, Final residual = 7.83321e-10, No Iterations 4
max(U) 140.097
min(p_rgh) 1138.55
GAMGPCG:  Solving for p_rgh, Initial residual = 1.088e-06, Final residual = 4.13587e-10, No Iterations 2
max(U) 147.712
min(p_rgh) 1226.71
ExecutionTime = 276.46 s

我仔细检查发现很可能是由于求解U方程时，某个网格上面速度突然变得很大，最终导致流场发散，目前想在U方程中 或者 P方程中限制最大速度不超过某一个值，由于U是矢量，我现在不太清楚怎么限制流场中的U不超过某一个值呢？是分别限制U某一方向的速度 还是 直接限制max(mag(U).value)呢？

麻烦哪位前辈能够指点一下呢？谢谢

谢谢前辈指点，我去试一试

各位前辈好！

我现在在计算三维水翼空化绕流，下图呈现的是alpha.water体积分数云图，现在想将三维流场进行展向平均（z方向），得到某一时刻的z方向平均流场，请问在paraView里面怎样处理呢？

哪位前辈可以指点一下思路呢？谢谢

好的，我去试一试，谢谢前辈指点

@东岳 感谢东岳老师的回复，但我看了一下流场，不管是速度 压力 还是温度，都是正常的呀，为什么老师您说是发散了呢？

麻烦哪位好心人给一下openfoam3.0.0的安装包呢？官网上竟然下载不了，谢谢

各位前辈好！

自己现在在学校的超算系统上跑case，调用了自己账户下面安装的of3.0的compressibleInterFoam（自己修改了求解器里面的部分代码），并行计算调用了openmpi 2.1.5，但并行计算经常会突然出现下面这个错误

A process has executed an operation involving a call to the
"fork()" system call to create a child process.  Open MPI is currently
operating in a condition that could result in memory corruption or
other system errors; your job may hang, crash, or produce silent
data corruption.  The use of fork() (or system() or other calls that
create child processes) is strongly discouraged.

The process that invoked fork was:

  Local host:          [[37777,0],5] (PID 31599)

If you are *absolutely sure* that your application will successfully
and correctly survive a call to fork(), you may disable this warning
by setting the mpi_warn_on_fork MCA parameter to 0.
--------------------------------------------------------------------------
[5] #0  Foam::error::printStack(Foam::Ostream&) at ??:?
[5] #1  Foam::sigSegv::sigHandler(int) at ??:?
[5] #2  ? in "/lib64/libc.so.6"
[5] #3  ? at btl_vader_component.c:?
[5] #4  opal_progress in "/software/openmpi/2.1.5/lib/libopen-pal.so.20"
[5] #5  ompi_request_default_wait_all in "/software/openmpi/2.1.5/lib/libmpi.so.20"
[5] #6  PMPI_Waitall in "/software/openmpi/2.1.5/lib/libmpi.so.20"
[5] #7  Foam::UPstream::waitRequests(int) at ??:?
[5] #8  Foam::lduMatrix::updateMatrixInterfaces(Foam::FieldField<Foam::Field, double> const&, Foam::UPtrList<Foam::lduInterfaceField const> const&, Foam::Field<double> const&, Foam::Field<double>&, unsigned char) const at ??:?
[5] #9  Foam::lduMatrix::Amul(Foam::Field<double>&, Foam::tmp<Foam::Field<double> > const&, Foam::FieldField<Foam::Field, double> const&, Foam::UPtrList<Foam::lduInterfaceField const> const&, unsigned char) const at ??:?
[5] #10  Foam::PCG::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const at ??:?
[5] #11  Foam::GAMGSolver::solveCoarsestLevel(Foam::Field<double>&, Foam::Field<double> const&) const at ??:?
[5] #12  Foam::GAMGSolver::Vcycle(Foam::PtrList<Foam::lduMatrix::smoother> const&, Foam::Field<double>&, Foam::Field<double> const&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::Field<double>&, Foam::PtrList<Foam::Field<double> >&, Foam::PtrList<Foam::Field<double> >&, unsigned char) const at ??:?
[5] #13  Foam::GAMGPreconditioner::precondition(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const at ??:?
[5] #14  Foam::PCG::solve(Foam::Field<double>&, Foam::Field<double> const&, unsigned char) const at ??:?
[5] #15  Foam::fvMatrix<double>::solveSegregated(Foam::dictionary const&) at ??:?
[5] #16  Foam::fvMatrix<double>::solve(Foam::dictionary const&) at ??:?
[5] #17  ? at ??:?
[5] #18  __libc_start_main in "/lib64/libc.so.6"
[5] #19  ? at ??:?
srun: error: n0025: task 5: Segmentation fault

仔细检查发现流场没有问题，怀疑是超算并行的问题，换节点和分区依然没有什么效果，

请问大家用超算的时候有没有出现过类似的错误呢？难道是我自己在账户下面安装的of3.0哪里出了问题吗？

各位前辈好！

我目前想在tecplot2017里面输出of计算的某一时刻所有结点的坐标和速度场，但利用file->write data的时候发现，只能输出单元上的速度场，在下图中勾选point之后会报错

我自己感觉是openfoam导入tecplot2017里面默认的都是单元上的值，怎样能够输出结点上的值呢？

麻烦哪位前辈指点一下呢？谢谢