Abstract
The major issue for microscopic nozzles are boundary layers that form along the internal walls of the nozzle. The boundary layer that forms here is a thin flow layer attached to the nozzle walls that connects the high velocity flow in the volume of the domain with the flow boundary that is immediately attached to the confining walls, and therefore has zero velocity.
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Schmid, K. (2011). Numeric Flow Simulation. In: Laser Wakefield Electron Acceleration. Springer Theses. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-19950-9_3
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DOI: https://doi.org/10.1007/978-3-642-19950-9_3
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