Investigation of drag coefficient in gas-liquid systems

Computational fluid dynamics (CFD) is one of the methods in which the efficiency of fluids is examined in various ways; For these fluids, equations are considered that are specific to the fluid and its single-phase, biphasic and multi-phase. One of the equations used in these methods is the drag force which has a drag coefficient; The drag coefficient used here is for liquefied gas systems, systems in which thegas bubble and the liquid, which is usually water, come into contact at the separation surface and a slip occurs at this level, which is the drag force. To follow. Among the coordinates used for calculations, Euler-Euler, Euler-Lagrange and etc. The coordinates we are considering are Euler-Eulerian. The equations used in various CFD probes are for Newtonian fluids, usually for sieve trays and etc Used. In this study, we review the drag coefficients that have been obtained by researchers in this framework over the years.

کلیدواژه ها:

Computational fluid dynamics ، drag coefficient ، drag force ، two-phase liquid gas flows ، Newtonian fluids