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CFD中文网

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  3. 欧拉多相流能不能计算气泡直径比网格大的情况?

欧拉多相流能不能计算气泡直径比网格大的情况?

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  • A Offline
    A Offline
    anubis
    wrote on last edited by
    #1

    如题,想算个泡状流, 用VOF的话计算量太大, 用欧拉多相流的话网格又太小了, 比气泡的直径小。

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  • 李东岳李 Online
    李东岳李 Online
    李东岳 管理员
    wrote on last edited by
    #2

    严格来说不能,但实际情况很多文章欧拉多相流都在算气泡比网格大的情况。

    9月CFD算法编程课: http://dyfluid.com/class.html

    需要帮助debug算例的看这个 https://cfd-china.com/topic/8018

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  • zousiyuZ Offline
    zousiyuZ Offline
    zousiyu
    wrote on last edited by
    #3

    那就把网格改大,以前看过一篇PHD thesis,他说气泡大小为网格大小的0.7倍刚刚好,收敛快结果准

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  • 两月三年两 Offline
    两月三年两 Offline
    两月三年
    wrote on last edited by
    #4

    欧拉多相流的话不是应该是网格尺寸大于颗粒尺寸吗,和气泡也会有具体的关系吗?

    那都是很好很好的,可是我偏不喜欢。

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