词汇 | stream-function |
释义 | BETA stream functioncollocation in Englishmeanings of streamand functionThese words are often used together. Click on the links below to explore the meanings. stream noun[ C ] uk /striːm/ us /striːm/ water that flows naturally along a fixed route formed by a channel cut into rock or ground, usually at ... See more at stream function noun uk /ˈfʌŋk.ʃən/ us /ˈfʌŋk.ʃən/ the natural purpose (of something) or the duty (of ... See more at function Examples of stream functionstream function The potential is also called the streamfunction. The next instructive problem is provided by the streamfunction produced by a point vortex outside a circular wall. It is expected that (4.17) represents the leading term for small in the expression for the streamfunction within the required region. Once these constants are determined, the solution for the streamfunction (2.5) and the velocity field (2.9) is completely known. This quantity is conserved on the path of fluid element 1 on its way through the diode, and is therefore a 'streamfunction'. One class is generated by a streamfunction and the other by a one component electric vector potential. We now match the streamfunction in the inner region with the two outer regions. Numerical methods for the steady symmetric problem have in most cases involved iterations between the streamfunction and vorticity equations. Using methods from gradient flows, we demonstrate that our unsteady evolution equation for the streamfunction has a unique solution. The z-independent perturbation to the streamfunction is positive in the region near the wall where the convection cells are strongest. By assuming an appropriate streamfunction distribution, the vorticity function and, thus, the surface integral could be calculated, yielding a corrected streamfunction distribution. The pressure is eliminated from the radial and axial momentum equations to yield a third-order non-linear partial differential equation for the streamfunction. It is clear that the streamfunction depends on the column radius, the angular velocity, the viscosity and the magnetic field. The streamfunction is differenced on the grid to produce a velocity field, which is finally interpolated back to the vortex positions. This rate of change is then used to determine the temperature and streamfunction one full time step ahead of the original one. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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