Double-gap bicone magnetorheology in steady shear under homogeneous magnetic and flow fields Camacho Villar, Guillermo Vicente Álvarez-Manzaneda, Juan De Morillas Medina, José Rafael We design, fabricate, and test a double-gap bicone magnetorheological (MR) device to measure steady shear rheological properties ofMR fluids under saturating magnetic fields (i.e., large enough to saturate theMR fluids). The device is optimized using finite element method and computational fluid dynamics simulations so that homogeneous, saturating field strengths are reached while keeping a constant shear rate within the main shearing gaps. Experiments demonstrate that the flow curves in the saturation regime can be fitted to a viscoplastic Casson model in good agreement with MR fluids under much lower (nonsaturating) fields. Moreover, yield stress data follow a linear dependence on volume fraction at low particle loadings, in agreement with existing theoretical models. 2024-09-04T09:22:08Z 2024-09-04T09:22:08Z 2024-07-29 journal article Guillermo Camacho, Juan de Vicente, and Jose R. Morillas. Double-gap bicone magnetorheology in steady shear under homogeneous magnetic and flow fields. Phys. Rev. Research 6, 033115 (2024) [10.1103/PhysRevResearch.6.033115] https://hdl.handle.net/10481/93898 10.1103/PhysRevResearch.6.033115 eng info:eu-repo/grantAgreement/EC/NextGenerationEU/PID2022-138990NB-I00 info:eu-repo/grantAgreement/EC/NextGenerationEU/TED2021.129384B.C22 info:eu-repo/grantAgreement/EC/H2020/MSC101030666 http://creativecommons.org/licenses/by/4.0/ open access Atribución 4.0 Internacional American Physical Society