Liquid Impinger
Liquid Impinger - Related Videos
13:29
Jet Impinging on an Inclined Plate
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2023
Source: Ricardo Mejia-Alvarez and Hussam Hikmat Jabbar, Department of Mechanical Engineering, Michigan State University, East Lansing, MI The goal of this experiment is to demonstrate how a fluid flow exerts forces on structures by conversion of dynamic pressure into static pressure. To this end, we will make a plane jet impinge on a flat plate and will measure the resulting pressure distribution along the plate. The resultant force will be estimated by integrating the product between the...
11:31
Determination of Impingement Forces on a Flat Plate with the Control Volume Method
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2023
Source: Ricardo Mejia-Alvarez and Hussam Hikmat Jabbar, Department of Mechanical Engineering, Michigan State University, East Lansing, MI The purpose of this experiment is to demonstrate forces on bodies as the result of changes in the linear momentum of the flow around them using a control volume formulation [1, 2]. The control volume analysis focuses on the macroscopic effect of flow on engineering systems, rather than the detailed description that could be achieved with a differential...
08:34
Visualization of High Speed Liquid Jet Impaction on a Moving Surface
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Cited by 4 •
2015
Two experimental devices for examining liquid jet impingement on a high-speed moving surface are described: an air cannon device and a spinning disk device. The apparatuses are used to determine optimal approaches to the application of liquid friction modifier (LFM) onto rail tracks for top-of-rail friction control.
09:21
Efficiency of Liquid-liquid Extraction
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2023
Source: Kerry M. Dooley and Michael G. Benton, Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA Liquid-liquid extraction (LLE) is a separation technique used instead of distillation when either: (a) the relative volatilities of the compounds to be separated are very similar; (b) one or more of the mixture components are temperature sensitive even near ambient conditions; (c) the distillation would require a very low pressure or a very high distillate/feed...
13:38
Synthesis of Biocompatible Liquid Crystal Elastomer Foams as Cell Scaffolds for 3D Spatial Cell Cultures
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Cited by 9 •
2017
This study presents a methodology to prepare 3D, biodegradable, foam-like cell scaffolds based on biocompatible side-chain liquid crystal elastomers (LCEs). Confocal microscopy experiments show that foam-like LCEs allow for cell attachment, proliferation, and the spontaneous alignment of C2C12s myoblasts.
FAQs
Collection efficiency varies with both the rate at which air enters the device and the size of particles carried in that stream. These variables influence how effectively airborne material transfers into the liquid rather than remaining in the exiting air. Accounting for them is important when comparing samples or interpreting differences in recovered biological material.
The collection medium does more than receive particles: it must also help preserve the biological material recovered from the air. Its ability to maintain that material affects whether subsequent culture, microscopy, biochemical assays, or molecular methods can detect or characterize it. Medium selection therefore influences the quality and interpretability of downstream biological results.
Impinger design affects the interaction between the measured air stream and the liquid, including how particles are transferred into suspension during bubbling. Because design is one factor governing collection efficiency, different configurations may produce different amounts of recovered material from comparable air samples. Design must therefore be considered when evaluating or comparing bioaerosol measurements.
A measured air stream is directed through the liquid, and the recovered suspension is then treated as the analytical sample. Depending on the research objective, investigators can examine it by culture, microscopy, biochemical assays, or molecular methods. This workflow connects atmospheric collection with laboratory identification of the biological material present in the sample.
Researchers apply this approach to bioaerosol monitoring, microbial detection, and environmental surveillance. It is also useful in studies of airborne transmission, where recovering biological material from air supports investigation of what is present in an environment. The method is especially relevant when atmospheric sampling must be linked to laboratory-based microbial or molecular analysis.
Recovered liquid can provide different kinds of biological information depending on the analytical method selected. Culture can support microbial detection, microscopy can enable visual examination, biochemical assays can provide characterization, and molecular methods can support identification. Together, these options allow the same collected suspension to be examined through complementary laboratory approaches.