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Transport hrubých částic v nenewtonovských suspenzích
Vlasák, Pavel ; Chára, Zdeněk ; Konfršt, Jiří
The paper deals with flow behaviour of slurries containing colloidal, clay, dust and also coarse-grained particles. The slurry flow behaviour changes form Newtonian to non-Newtonian in dependence on the solid phase concentration and composition, especially on the contents of colloidal particles. Flow behaviour of fluidic fly and bottom ash slurries, clay and sand slurries was experimentally investigated with respect to the solids composition, volumetric concentrationa and slurry velocity. The re-circulation pipe loop with smooth stainless steel pipes of the inner diameters D = 17.5, 26.8 and 36 mm was used for measuring the slurry flow parameters. Also the effect of time and intensity of shearing was studied for time dependent fluidic ash slurries
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Vývoj simulační linky okruhu kardiovaskulárního systému
Chlup, Hynek ; Konvičková, S.
Simulation line of cardiovascular systém will be designed for setting velocity pulse wave in inserted sample of vein, thinwall tube and identification material properties of wall sample. This is a systemic circuit. 5 circuits were created in which were compared two possible simulations systemic resistance working on different principle. It was observed behaviour of individual line elements and their mutual influence. Done experiments shown optimal arranging of line elements.
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Design of small laboratory quadruped robot
Švehlák, M. ; Grepl, Robert ; Věchet, S. ; Bezdíček, M. ; Chmelíček, J.
In the article is a sum dectripcion of the design of a small quadrupedal walking robot. The aim of the work is to make a physical model for authenticating computational simulation and other problems related with walking robots. The physical model should be noted for simple design, unpretentious production and relatively small financial coast. The physical model is qualified enough to make various experiments. The actuators are concepted in reference to the character of the loading moment.
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