一阶时间精度与PIMPLE算法模拟可压缩被审稿人质疑
-
审稿人提出意见对OpenFOAM中常用的一阶时间精度与PIMPLE算法模拟水下爆炸质疑，具体如下：
- Line 52 reads "Since the calculation of pressure wave propagation in a single medium is fully developed (Koch et al., 2016; Li et al., 2019; Miller et al., 2013; Wu et al., 2020)". Modelling pressure wave propagation remains a significant challenge for the semi-implicit methods cited here. Especially the work of Koch et al. and Miller et al. are very questionable works in this respect, as they use first-order time differencing which is arguably a poor choice if pressure waves are to be approximated accurately.
2.Generally, the PIMPLE algorithm is widely used for pressure-velocity decoupling in incompressible flows. However, the subject of this study appears to be compressible multiphase flow. What is the purpose of using PIMPLE for pressure iteration correction in this context?
如何回复为好。
- Line 52 reads "Since the calculation of pressure wave propagation in a single medium is fully developed (Koch et al., 2016; Li et al., 2019; Miller et al., 2013; Wu et al., 2020)". Modelling pressure wave propagation remains a significant challenge for the semi-implicit methods cited here. Especially the work of Koch et al. and Miller et al. are very questionable works in this respect, as they use first-order time differencing which is arguably a poor choice if pressure waves are to be approximated accurately.
-
@李东岳 李老师，我也想问这个问题，OpenFOAM最新的shockFluid也可以使用pimple，我设置了之后确实可以提高精度和稳定性（shockTube设置 nOuterCorrectors 2），这在文章中怎么说呢？
-
Line 52 reads "Since the calculation of pressure wave propagation in a single medium is fully developed (Koch et al., 2016; Li et al., 2019; Miller et al., 2013; Wu et al., 2020)". Modelling pressure wave propagation remains a significant challenge for the semi-implicit methods cited here. Especially the work of Koch et al. and Miller et al. are very questionable works in this respect, as they use first-order time differencing which is arguably a poor choice if pressure waves are to be approximated accurately.
审稿人对于你的一阶时间精度提出质疑，不仅质疑你的，还质疑其他的。审稿人应该偏向质疑各种未发表的以及发表的文章。这个问题你计划怎么回？我个人觉得你要发文章，你就糊弄过去完事了，“审稿人你说的对，但是我们的不影响精度”
Generally, the PIMPLE algorithm is widely used for pressure-velocity decoupling in incompressible flows. However, the subject of this study appears to be compressible multiphase flow. What is the purpose of using PIMPLE for pressure iteration correction in this context?
我不是很认可审稿人的观点。PIMPLE用于可压缩的很多。我个人觉得你要发文章，你就糊弄过去完事了，“审稿人你说的对，PIMPLE都用不可压缩流，但是我们测试可压缩用PIMPLE用PISO没啥区别”
自从OF11之后，密度基求解器里面的求解变量变成原始变量了，之前都是守恒变量。我还没细看OF11的算法。得看一下再看看怎么回事 @尚善若水
-
-
Generally, the PIMPLE algorithm is widely used for pressure-velocity decoupling in incompressible flows. However, the subject of this study appears to be compressible multiphase flow. What is the purpose of using PIMPLE for pressure iteration correction in this context?
私下来看，审稿人说的这个，我认为是不正确的。当然了，审稿人的观点并不正确是审稿的一个非常常见的现象。
