A spray of suspension, forms mainly solid particles in a liquid phase from the atomization of two or multiphase flow, mainly solid particles in a liquid phase, and its transport phenomena by a gaseous crossflow have many natural and industrial applications. For example, injection of suspension jet in a high-speed flow is used in the emerging surface engineering process called suspension plasma spray. Typically, submicron ceramic oxide particles are mixed with water or ethanol to form a suspension that is injected in a plasma plume using different types of injectors. Injection parameters such as the type of injector and momentum flux influence the size, velocity, and trajectory of suspension droplets in the plasma and the microstructure of the deposited coatings. Using an effervescent atomizer, due to its capability in transporting flows with various rheological properties is promising for injection of suspension into the gaseous crossflow. In this study, an effervescent atomizer was employed to introduce a suspension radially into the flow of gas at room temperature. The spray of suspensions with different concentrations of glass particles in water was investigated in the crossflow by phase Doppler particle analyzer. The results were validated and supported by studying the spray by shadowgraph and light diffraction techniques. The results of this study provide a better understanding of the suspension spray generated by an effervescent atomizer in a crossflow configuration. It was found that the solid concentration of the suspension (up 10 wt.%) causes a slight decrease in size and brings the penetration of the suspension droplets in the gas flow.

中文翻译：

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气体横流中的泡腾悬浮喷雾

悬浮液的喷雾，通过两相流或多相流的雾化，主要形成液相中的固体颗粒，主要是液相中的固体颗粒，并且其通过气态横流的输送现象具有许多自然和工业应用。例如，在称为悬浮等离子喷涂的新兴表面工程工艺中使用高速流中的悬浮射流喷射。通常，亚微米陶瓷氧化物颗粒与水或乙醇混合形成悬浮液，使用不同类型的注射器将其注入等离子体羽流中。注射器类型和动量通量等注射参数影响等离子体中悬浮液滴的尺寸、速度和轨迹以及沉积涂层的微观结构。使用泡腾雾化器，由于其能够传输具有各种流变特性的流，因此有望将悬浮液注入气体横流中。在这项研究中，采用泡腾雾化器将悬浮液径向引入室温下的气流中。通过相位多普勒颗粒分析仪在横流中研究了水中不同浓度玻璃颗粒悬浮液的喷雾。通过阴影图和光衍射技术研究喷雾，结果得到了验证和支持。这项研究的结果让我们更好地了解横流配置的泡腾雾化器产生的悬浮喷雾。发现悬浮液的固体浓度（高达 10 wt.%）。