In this work, a new comprehensive dataset about bubble sizes in flow boiling of water is presented. The experimental setup basically consists of a lower copper heated plate embedded in a horizontal rectangular channel flow. Several experimental conditions, ranging bulk velocities: 0.1–0.9 [m·s⁻¹]; mass fluxes: 96.9–871.8 [kg·m⁻²·s⁻¹]; subcooling degrees: 16–36 [°C]; heat fluxes: 200–650 [kW·m⁻²] and pressures: 110–190 [kPa] were set for three cooper plates of different roughness, with S_a: 0.45, 1.23 and 7.43 [µm], respectively. Based on the current samples, the probability function for the normalized bubble diameter has been described by a lognormal pdf for any plate and experimental condition and a dimensionless correlation for the standard deviation of the bubble size distribution is presented. In order to completely describe the diameter distribution for bubbles in subcooled boiling systems, an improved correlation for the mean bubble diameter value is also presented here, after a deep review of previously published datasets. Further work is required to accommodate different channel configurations and surface morphologies.

在这项工作中，提出了一个关于水流沸腾中气泡大小的新的综合数据集。实验装置主要由嵌入在水平矩形通道流中的下部铜加热板组成。几种实验条件，范围为整体速度：0.1–0.9 [m·s ^-1 ]；质量通量：96.9-871.8 [kg·m ^-2 ·s ^-1 ]；过冷度：16–36 [°C]；热通量：200-650 [千瓦·米^-2 ]和压力：110-190 [千帕]分别设置为不同的粗糙度三个铜板，其中S_一：分别为0.45、1.23和7.43 [μm]。基于当前样本，对于任何平板和实验条件，已通过对数正态pdf描述了归一化气泡直径的概率函数，并给出了气泡尺寸分布的标准偏差的无量纲相关性。为了完整描述过冷沸腾系统中气泡的直径分布，在对先前发布的数据集进行了深入研究之后，此处还提出了平均气泡直径值的改进相关性。需要进一步的工作来适应不同的通道配置和表面形态。