Numerical investigation of the flow properties of He II
作者： RGKM Aarts , ATAM De Waele , None
DOI: 10.1103/PHYSREVB.50.10069
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摘要: In the framework of reconnecting vortex-tangle model, flow properties He II were studied numerically. The Crank-Nicolson method was used to calculate motion quantized [sup 4]He vortices, assuming smooth walls in infinitely long channels, applying periodic boundary conditions direction flow, and with friction coefficients [alpha]=0.1 [alpha][prime]=0. Flow channels square circular cross sections wide slits studied. superfluid velocity profile assumed be flat; normal-component either flat or parabolic. Special interest paid time-averaged line-length density average mutual-friction force as functions difference between normal-fluid externally applied velocity. influence periodicity length on calculated determined. results compared experiment.
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