https://doi.org/10.1140/epje/s10189-024-00441-8
Regular Article - Soft Matter
Nematodynamics with odd and rotational viscosities
Department of Chemical Engineering, Technion – Israel Institute of Technology, 32000, Haifa, Israel
Received:
18
January
2024
Accepted:
5
July
2024
Published online:
27
July
2024
We explore a novel mechanism of interactions between nematic order and flow including odd and rotational viscosities, and investigate activity-induced instabilities in the framework of this model. We show how these modes of viscous dissipation can be incorporated in the Ericksen–Leslie formalism, but it does not eliminate deficiencies of the approach based on Onsager’s reciprocal relations that lead to spurious instabilities. The suggested way of deriving nematodynamic equations, based on a specific mechanism applicable to rigid rods, is not universal, but it avoids referring to Onsager’s relations and avoids spurious instabilities in the absence of an active inputs. The model is further applied to the analysis of instabilities in active media
© The Author(s) 2024
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