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Edge Effects in Rotational Viscometry VI. ZZ- and KK- Type Sensors: No-slip Pseudosimilarity for Inertialess Flow (Revisited)

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    0394597 - ÚCHP 2014 RIV CZ eng V - Research Report
    Wein, Ondřej - Havlica, Jaromír
    Edge Effects in Rotational Viscometry VI. ZZ- and KK- Type Sensors: No-slip Pseudosimilarity for Inertialess Flow (Revisited).
    Praha: Ústav chemických procesů AV ČR, v. v. i, 2012. 51 s. 5.
    R&D Projects: GA ČR GA104/01/0545; GA ČR GA104/04/0826; GA ČR GA104/08/0428; GA ČR GA104/09/0972
    Institutional support: RVO:67985858
    Keywords : edge effects * rotational viscometry * zz and kk sensors
    Subject RIV: CI - Industrial Chemistry, Chemical Engineering

    This report should serve as a manual to the program Prog_cL_m.exe for calculating the correction cL on edge effects in narrow-gap rotational viscometry with almost cylindrical or conical spindles. Referring to the previous Research Report ICPF 2004/8, which deals with the same subject, it includes, in addition, also computation of cL for the entire ZZ and KK sensors with an arbitrary front of bottom semi-sensors (FLAT, CONE, HUB, HAAKE). Detailed attention is paid to numerical aspects: extrapolation/interpolation of the related fields (angular velocity, shear stress, dissipation, local torque contribution) towards the boundaries, including the analytical smoothing at singularities. The source codes for Prog_cL_m.exe, the results of numerical simulations, as well as the resulting correlations for cL , are available on the attached CD, which is an integral part of this report. The inertia effect was computed using commercial software FLUENT 12 for the Z40DIN sensor and applied in an approximate way also for the KK35/23 sensor.
    Permanent Link: http://hdl.handle.net/11104/0222830

     
     
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