Coaxial Nozzle
Coaxial Nozzle - Related Videos
07:13
Alginate Encapsulation of Pluripotent Stem Cells Using a Co-axial Nozzle
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Cited by 14 •
2015
We established a method of encapsulating pluripotent stem cells (PS cells) into alginate hydrogel capsules using a co-axial nozzle. This prevents cells from aggregating excessively and limits the shear stress experienced by cells in suspension culture. The technique is applicable to the mass production of PS cells as well as research on stem cell niche.
10:22
Nozzle Analysis: Variations in Mach Number and Pressure Along a Converging and a Converging-diverging Nozzle
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2023
Source: Shreyas Narsipur, Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, NC A nozzle is a device that is commonly used to accelerate or decelerate flow by virtue of its varying cross-section. Nozzles are widely used in aerospace propulsion systems. In rockets, propellant that is ejected from the chamber is accelerated through a nozzle to create a reaction force that propels the system. In jet engines, a nozzle is used to transform energy from a high-pressure...
08:14
Measuring Spray Droplet Size from Agricultural Nozzles Using Laser Diffraction
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Cited by 30 •
2016
We present protocols to be used in the measurement of spray droplet size from agricultural nozzles used in both aerial and ground based agrochemical applications. These methods presented were developed to provide consistent and repeatable droplet size data both inter- and intra-laboratory, when using laser diffraction systems.
01:31
Energy Stored In A Coaxial Cable
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2023
A coaxial cable consists of a central copper conductor used for transmitting signals, followed by an insulator shield, a metallic braided mesh that prevents signal interference, and a plastic layer that encases the entire assembly. In the simplest form, a coaxial cable can be represented by two long hollow concentric cylinders in which the current flows in opposite directions. The magnetic field inside and outside the coaxial cable is determined by using Ampère's law. The magnetic field inside...
12:47
Preparation and Use of Photocatalytically Active Segmented Ag|ZnO and Coaxial TiO2-Ag Nanowires Made by Templated Electrodeposition
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Cited by 1 •
2014
Procedures are outlined to prepare segmented and coaxial nanowires via templated electrodeposition in nanopores. As examples, segmented nanowires consisting of Ag and ZnO segments, and coaxial nanowires consisting of a TiO2 shell and a Ag core were made. The nanowires were used in photocatalytic hydrogen formation experiments.
FAQs
Flow rates, viscosities, and compositions regulate how the core and sheath streams interact. These variables alter the position and stability of the interface, while shear and interfacial forces shape the emerging jet, droplets, or fibers. Adjusting the streams therefore provides control over composition, dimensions, and spatial organization during chemical processing.
Separate channels allow materials to remain apart until they reach the intended processing region. This arrangement is especially useful when solutions are reactive or incompatible, because controlled contact can limit premature interaction while still enabling the desired transformation at the interface. The resulting organization supports more deliberate formation of particles, coatings, or encapsulated structures.
Shear and interfacial forces act on the boundary between the streams and help determine whether the output forms as a jet, droplets, or fibers. Their effects are coupled to flow conditions and material properties, including viscosity and composition. Consequently, changes in these factors can modify product size, structure, and spatial arrangement.
Operation requires independent regulation of the flow rates for the core and sheath streams, together with control of their viscosities and compositions. These settings govern the interface and the behavior of the emerging material. In practice, coordinated adjustment of the streams helps researchers target a desired form and maintain controlled contact between the processed solutions.
The geometry supports microfluidic synthesis, particle formation, encapsulation, and controlled coating. Its separated yet coordinated streams help organize materials during processing and can improve control over composition and size. These capabilities make the approach relevant to drug-delivery research, materials preparation, and chemical-engineering studies involving structured chemical products.
Researchers can place the solutions in separate concentric streams and regulate their contact rather than mixing them immediately. The materials remain spatially separated until the processing stage where interaction is intended, while flow and interfacial conditions shape the result. This strategy is useful for producing organized particles, encapsulated materials, or other controlled structures.