Development of a new mixing rheometer for studying rheological behaviour of concentrated energetic suspensions

Abstract : The overall objective is to present a procedure based on a Couette analogy to quantitatively analyse torque/rotor speed data and extract viscosity/shear-rate curves using a non-conventional geometry. Diphasic flows of energetic concentrated suspensions of melt-cast insensitive explosives exhibit particular rheological properties. The characterization of these complex fluids may be a challenging task when conventional rheometers are used. Placing these tense suspensions in a classic cylindrical geometry may lead to a partial destruction of the internal fluid structure. To prevent that, a "RheoXF" a mixer-type rheometer has been developed : it consists of a mixing device with quite a complex geometry rotating in a cylindrical tank.
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Journal of Non-Newtonian Fluid Mechanics, Elsevier, 2008, 151 (1-3), pp.136-144. 〈10.1016/j.jnnfm.2007.12.007〉
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Jean-Philippe Guillemin, Yves Ménard, Luc Brunet, Olivier Bonnefoy, Gérard Thomas. Development of a new mixing rheometer for studying rheological behaviour of concentrated energetic suspensions. Journal of Non-Newtonian Fluid Mechanics, Elsevier, 2008, 151 (1-3), pp.136-144. 〈10.1016/j.jnnfm.2007.12.007〉. 〈emse-00495289〉

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