CFD中文网

@coolhhh 前辈 我还想问一下 我按照网上搜到修改蒸发模型的算例去修改碰撞模型 编译过程里没有报错 为什么在算例里读不出来我自定义的碰撞模型

@coolhhh 感谢前辈！才看到 已经解决了！

请教各位前辈，在自定义求解器的时候遇到这个报错，但是我的options文件没有56行，修改制表符也没有解决，是什么问题呢

@Amadeus 谢谢您 我这边换了个喷油的方式 可以算了 等手头事情做完了我试试您说的方法！

@ShaneHEEE 我这边尝试了一下并行计算，但是这个返回非0是什么意思啊

各位老师 我在使用spray foam时遇到计算停止，但是日志并没有报错，这是什么原因。

/*---------------------------------------------------------------------------*\
| =========                 |                                                 |
| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
|  \\    /   O peration     | Version:  2406                                  |
|   \\  /    A nd           | Website:  www.openfoam.com                      |
|    \\/     M anipulation  |                                                 |
\*---------------------------------------------------------------------------*/
Build  : _be01ca78-20240625 OPENFOAM=2406 version=2406
Arch   : "LSB;label=32;scalar=64"
Exec   : sprayFoam
Date   : Feb 21 2025
Time   : 16:33:03
Host   : DESKTOP-1CFS1LE
PID    : 2872
I/O    : uncollated
Case   : /mnt/c/openfoam_run/nocoll_5g_more
nProcs : 1
trapFpe: Floating point exception trapping enabled (FOAM_SIGFPE).
fileModificationChecking : Monitoring run-time modified files using timeStampMaster (fileModificationSkew 5, maxFileModificationPolls 20)
allowSystemOperations : Allowing user-supplied system call operations

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Create time

Create mesh for time = 0


PIMPLE: Operating solver in PISO mode


Reading g
Reading thermophysical properties

Selecting thermodynamics package 
{
    type            hePsiThermo;
    mixture         reactingMixture;
    transport       sutherland;
    thermo          janaf;
    energy          sensibleEnthalpy;
    equationOfState perfectGas;
    specie          specie;
}

Selecting chemistryReader chemkinReader
Reading CHEMKIN thermo data in new file format
Creating component thermo properties:
    multi-component carrier - 5 species
    liquids - 1 components
    solids - 0 components

Reading field U

Reading/calculating face flux field phi

Creating turbulence model

Selecting turbulence model type RAS
Selecting RAS turbulence model kEpsilon
RAS
{
    RASModel        kEpsilon;
    turbulence      on;
    printCoeffs     on;
    Cmu             0.09;
    C1              1.44;
    C2              1.92;
    C3              0;
    sigmak          1;
    sigmaEps        1.3;
}

Creating combustion model

Selecting combustion model PaSR
Selecting chemistry solver 
{
    solver          ode;
    method          standard;
}

StandardChemistryModel: Number of species = 5 and reactions = 1
Selecting ODE solver seulex
    using integrated reaction rate
Creating field dpdt

Creating field kinetic energy K

No MRF models present


Constructing reacting cloud
Constructing particle forces
    Selecting particle force sphereDrag
Constructing cloud functions
    Selecting cloud function WeberNumber1 of type WeberNumber
    Selecting cloud function ReynoldsNumber1 of type ReynoldsNumber
    Selecting cloud function NusseltNumber1 of type NusseltNumber
    Selecting cloud function HeatTransferCoeff1 of type HeatTransferCoeff
Constructing particle injection models
Creating injector: model1
Selecting injection model coneNozzleInjection
    Constructing 3-D injection
Selecting distribution model RosinRammler
Selecting dispersion model none
Selecting patch interaction model standardWallInteraction
Selecting stochastic collision model none
Selecting surface film model none
Selecting packing model none
Selecting damping model none
Selecting isotropy model none
Selecting U integration scheme Euler
Selecting heat transfer model RanzMarshall
Selecting T integration scheme analytical
Selecting composition model singlePhaseMixture
Selecting phase change model liquidEvaporation
Participating liquid species:
    C7H16
Selecting atomizationModel LISA
Selecting breakupModel ReitzKHRT
Average parcel mass: 1e-09
Selecting radiationModel none
No finite volume options present
Courant Number mean: 0 max: 0

Starting time loop

particleDistribution distribution1 output:
    Processing cloud : sprayCloud

Courant Number mean: 0 max: 0
deltaT = 2.94118e-06
Time = 2.94118e-06


Solving3-D cloud sprayCloud

@李东岳 有的 我这边一个算例大概要4-6h，网格不算太多

@李东岳 应该不是的老师 我增加了粒子数量还是重叠

请教各位老师，我在OF中开启了液滴碰撞模型，并在相同工况下分别选取其中的nocoll（无碰撞）、orourke（概率法）和trajectory（轨迹法）三种碰撞模型进行计算，但是轨迹法与无碰撞的液滴贯穿距完全一致，这是什么原因呢？

@李东岳 谢谢老师！！！

如图，在做有关雾化的课题，但是在paraview中不知道怎么复现前辈的论文输出某截面的液相分数

@wangfei9088 谢谢老师！

@欧阳 老师您好，我翻看了一些算例，没有找到关于这个两个值该如何定义，请问是需要我自己给定嘛

@欧阳
我这里显示在轨迹模型中缺少参数，想问一下这里具体参数是什么啊，需要加哪些参数呢

@欧阳 谢谢大佬！我里面的参数设置有些问题，已经纠正了，另外还想请问，在OF碰撞模型里面出了有ORourke还有个Tracject，也是直接在stochasticCollisionModel上调用吗

各位老师，我想基于OF里面的openfoam/tutorials/lagrangian/sprayFoama/achenBomb算例引入ORourke碰撞模型，直接计算算例没有问题，但是我关闭原有算例的化学反应部分，修正喷油方式为持续喷油并打开相应的随机碰撞模型以后，发现程序无法计算，没有报错，但也没有计算结果，还请各位老师指教一下！