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Uniform flow distribution is crucial to the performance of devices in many industrial applications. This paper proposes a new three-dimensional structure of vapor-liquid two-phase distributor based on the bionic fractal principle to address the problem of distribution nonuniformity and higher pressure drop. The performance of the distributor with straight, arc and stream-lined branches in different situations is investigated using CFD software. The influence of the structure size on the distribution performance is then further investigated. The results demonstrate that the arc distributor exhibits the best distribution performance at various flow rate, gas phase fraction, proportional scaling up or down and installation inclination angles.