multiUQ: A software package for uncertainty quantification of multiphase flows
multiUQ: A software package for uncertainty quantification of multiphase flows
复制标题
multiUQ：用于多相流不确定性量化的软件包
DOI：
10.1016/j.cpc.2021.108088
复制
发表时间：
2021
影响因子：
6.3
通讯作者：
Owkes, Mark
中科院分区：
文献类型：
--
作者：
Turnquist, Brian;Owkes, Mark
multiUQ是一种新颖的工具，可以模拟气液多相流动，并量化由于流体性质和初始/边界条件的可变性而导致的结果的不确定性。与典型的确定性求解器相比，其优点是可以包含不精确的信息，例如流体性质或流速的可变性，以确定对模拟解决方案的影响。部署非侵入性方法是很常见的，这种方法利用确定性求解器中的许多解来生成可能结果的分布。相反，multiUQ使用一种侵入性的不确定性量化方法，其中感兴趣的变量是空间、时间和附加不确定性维度的函数。侵入式求解器运行一次，给出解的分布作为输出，以及所需的统计数据。我们使用多项式混沌来创建随机变量，这些随机变量表示每个网格点的值的分布。将随机变量代入控制随机流体动力学的不可压缩Navier-Stokes方程。随机水平集用于捕捉不确定多相流中存在的界面分布。multiUQ是用Fortran编写的，并使用消息传递接口（MPI）进行并行操作。考虑到多相流的许多应用，包括开放流、液压、燃油喷射系统和雾化射流，以经济有效的方式计算这些流动的不确定性信息具有巨大的潜在优势。程序摘要程序标题：multiUQCPC库链接到程序文件：https://doi.org/10.17632/yp5pkd5x89.1Developer's存储库链接：https://bitbucket.org/markowkes/multiuqLicensing条款：gplv3编程语言：Fortran 95/2003补充材料：Wiki可在存储库链接。问题性质：对气液多相流的模拟进行不确定性量化，以了解输入不确定性对模拟结果的影响。求解方法：该软件采用侵入式方法对多相流的不确定度进行量化。通过多项式混沌的方式将确定性变量扩展到一个附加的不确定性域。随机Navier-Stokes控制不可压缩单流体方法下的流场。多相流是由随机水平集和表面张力耦合产生的。
multiUQ is a novel tool that simulates gas-liquid multiphase flows and quantifies uncertainty in results due to variability about fluid properties and initial/boundary conditions. The benefit over a typical deterministic solver is that inexact information, such as variability in fluid properties or flow rates, can be included to determine the affect on simulation solutions. It is common to deploynon-intrusivemethods which utilize many solutions from a deterministic solver to generate a distribution of possible results. Contrarily, multiUQ uses anintrusiveuncertainty quantification method wherein variables of interest are functions of space, time, and additional uncertainty dimensions. The intrusive solver is run once, giving a distribution of solutions as an output, as well as desired statistics. We use polynomial chaos to create the stochastic variables, which represent a distribution of values at each grid point. The stochastic variables are substituted into the incompressible Navier-Stokes equations, which govern the stochastic fluid dynamics. A stochastic level set is used to capture the distribution of interfaces that are present in an uncertain multiphase flow. multiUQ is written in Fortran and uses a message passing interface (MPI) for parallel operation. Given the many applications of multiphase flows, including open flows, hydraulics, fuel injection systems, and atomizing jets, there is a massive potential benefit to calculating uncertainty information about these flows in a cost-effective manner.Program summaryProgram Title:multiUQCPC Library link to program files:https://doi.org/10.17632/yp5pkd5x89.1Developer's repository link:https://bitbucket.org/markowkes/multiuqLicensing provisions:GPLv3Programming language:Fortran 95/2003Supplementary material:Wiki available at repository link.Nature of problem:Performing uncertainty quantification on simulations of gas-liquid multiphase flows to understand the impact of input uncertainty on simulation results.Solution method:This software utilizes an intrusive approach to uncertainty quantification of multiphase flows. Deterministic variables are expanded to include an added uncertainty domain by way of polynomial chaos. Stochastic Navier-Stokes govern the flow field in an incompressible one-fluid approach. Multiphase flows are created by coupling a stochastic level set and surface tension.
登录
查看更多内容
影响因子：
4.1
作者：
BRACKBILL, JU;KOTHE, DB;ZEMACH, C
通讯作者：
ZEMACH, C
汽车喷漆旋转钟杯静电喷漆转移过程的数值模拟
DOI：
10.1016/j.ijheatfluidflow.2019.108499
发表时间：
2019
影响因子：
2.6
作者：
M. Pendar;José C. Páscoa
通讯作者：
José C. Páscoa
一种用于侵入式随机多相流求解器的快速分解压力修正方法
影响因子：
2.8
作者：
Turnquist, Brian;Owkes, Mark
通讯作者：
Owkes, Mark
具有不确定周期动力学的流体流动的牛顿-伽辽金方法
DOI：
10.1137/130908919
发表时间：
2015
期刊：
SIAM/ASA J. Uncertain. Quantification
影响因子：
--
作者：
Schick M;Le Maitre OP;Heuveline V
通讯作者：
Heuveline V
使用面向对象的软件设计优化复杂力学模拟
影响因子：
0.5
作者：
M. S. Eldred;D. Outka;W. Bohnhoff;W. R. Witkowski;V. J. Romero;E. R. Ponslet;K. S. Chen;Sandia National Laboratories
通讯作者：
Sandia National Laboratories