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Showing 1 to 3 of 3 for “"Bohm speed"”.
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A Continuum Kinetic Investigation into the Role of Transport Physics in the Bohm Speed formulation
… when the ions enter the sheath with a speed equal to or greater than the `Bohm speed'. The Bohm speed is a landmark result in sheath theory and various mathematical expressions for it have been derived from fluid and kinetic treatment of plasmas. Although these models are widely used, …
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The Effects of Collisions on Plasma-Sheath Transition
… wall. The key concept in sheath theory is the Bohm criterion that gives the lower bound of the plasma exit flow speed, also known as the Bohm speed. Traditionally, the Bohm speed is evaluated in the asymptotic limit of an infinitely thin sheath and ignores the transport physics in the …
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Applications of smoothness-increasing accuracy-conserving filtering to particle-in-cell data denoising, enhanced multiresolution analysis, and entropy-correction schemes
… boundaries. Furthermore, in the computation of Bohm speed estimates from PIC data, we show that SIAC filters enable a dramatic reduction in the quantity of PIC data needed. Having applied SIAC filters to the equivalent of finite volume data, we next consider higher-order piecewise polynomial …