单词 | pseudoviscosity |
释义 | > as lemmaspseudoviscosity pseudoviscosity n. Brit. /ˌs(j)uːdə(ʊ)vɪˈskɒsᵻti/ , U.S. /ˌsudoʊvᵻˈskɑsədi/ Science a property analogous to viscosity, such as the plasticity of a solid or the viscous resistance of a sludge, plasma, etc.ΚΠ 1894 Daily News 22 Aug. 5/3 It is this pseudo-viscosity of ice that enables a glacier to accommodate itself to the bed over which it flows. 1929 Blair & Crowther in Jrnl. Physical Chem. 33 321 The constant..has been called by most workers by the unfortunate name of ‘Plasticity’ and has the same dimensions as viscosity, although..it is not independent of pressure... We propose to term this constant ‘Pseudo viscosity’. 1978 Astrophysical Jrnl.: Lett. 221 83 Numerical stellar collapse calculations using a pseudoviscosity can thus seriously underestimate the neutrino flux across the shock. 1998 SIAM Jrnl. Numerical Anal. 35 15 Solving a heat equation with a ‘small parameter’ ν which is dependent on the time step Δt..may be interpreted, in numerical terms, as a pseudoviscosity. < as lemmas |
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