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LZ×î½üÒª×öÈýÏàslug flow Ä£Ä⣬µ¼Ê¦Ëµ´Ó2D×öÆð£¬µ«ÊÇÏÖÔÚÎÊÌâÊÇÎÞ·¨ÔÚʵÑéÌõ¼þÏÂÓÃfluent²úÉúslug. ËãÁË10s×óÓÒÖ»ÊÇÔÚÈë¿Ú´¦ÓÐ΢С²¨¶¯£¬¸ü¸ÄÁËÆäËûËÙ¶ÈÒ²ÎÞ·¨µÃµ½slug, Çó´ó¼Ò·ÖÎöÒ»ÏÂÔ­Òò¡£ÒÔÏÂÊÇÎÒµÄÉèÖÃ
Mesh: 6000mm*78mm (I tried 2D first)
Three inlets for air/oil/water on the left.

2D ,planar? Unsteady, 1st-Order Implicit Standard k-epsilon turbulence model Standard Wall Functions g=-9.8m/s2

surface tension: oil-water 0.03 oil-air 0.05 water-air=0.073

boundary conditions:
air/oil/water inlets: velocity inlet, Vair=4m/s Voil=Vwater=0.5m/s
pressure outlet. 0Pa
wall:no-slip

initialization : Vair=4m/s Voil=Vwater=0.5m/s, air takes up the up half of the pipe, liquid takes the another half. Water cut= 0.4 liquid hold up. Stratified flow.

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