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- Oldroyd-B_model abstract "The Oldroyd-B model is a constitutive model used to describe the flow of viscoelastic fluids.This model can be regarded as an extension of the Upper Convected Maxwell model and is equivalent to a fluid filled with elastic bead and spring dumbbells.The model is named after its creator James G. Oldroyd.The model can be written as:where: is the stress tensor; is the relaxation time; is the retardation time = is the Upper convected time derivative of stress tensor:is the fluid velocity;is the total viscosity composed of solvent and polymer components, is the deformation rate tensor or rate of strain tensor, .The model can also be written split into polymeric (viscoelastic) part separately from the solvent part:.whereWhilst the model gives good approximations of viscoelastic fluids in shear flow, it has an unphysical singularity in extensional flow, where the dumbbells are infinitely stretched;If the solvent viscosity is zero then the Oldroyd-B becomes the Upper Convected Maxwell model.".
- Oldroyd-B_model wikiPageID "33558176".
- Oldroyd-B_model wikiPageRevisionID "594790141".
- Oldroyd-B_model hasPhotoCollection Oldroyd-B_model.
- Oldroyd-B_model subject Category:Non-Newtonian_fluids.
- Oldroyd-B_model type Abstraction100002137.
- Oldroyd-B_model type Fluid114939900.
- Oldroyd-B_model type Matter100020827.
- Oldroyd-B_model type Non-NewtonianFluids.
- Oldroyd-B_model type Part113809207.
- Oldroyd-B_model type PhysicalEntity100001930.
- Oldroyd-B_model type Relation100031921.
- Oldroyd-B_model type Substance100019613.
- Oldroyd-B_model comment "The Oldroyd-B model is a constitutive model used to describe the flow of viscoelastic fluids.This model can be regarded as an extension of the Upper Convected Maxwell model and is equivalent to a fluid filled with elastic bead and spring dumbbells.The model is named after its creator James G.".
- Oldroyd-B_model label "Oldroyd-B model".
- Oldroyd-B_model sameAs m.0hgr135.
- Oldroyd-B_model sameAs Q7085712.
- Oldroyd-B_model sameAs Q7085712.
- Oldroyd-B_model sameAs Oldroyd-B_model.
- Oldroyd-B_model wasDerivedFrom Oldroyd-B_model?oldid=594790141.
- Oldroyd-B_model isPrimaryTopicOf Oldroyd-B_model.