Non-Newtonian fluids

Ketchup or catsup is a table condiment with a sweet and sour flavor. "Ketchup" now typically refers to tomato ketchup, although early recipes for different varieties contained mushrooms, oysters, mussels, egg whites, grapes, or walnuts, among other ingredients.

transformation of a body from a reference configuration to a current configuration

Gravy is a sauce made from the juices of meats and vegetables that run naturally during cooking and often thickened with thickeners for added texture. The gravy may be further coloured and flavoured with gravy salt (a mix of salt and caramel food colouring) or gravy browning (gravy salt dissolved in water) or bouillon cubes. Powders can be used as a substitute for natural meat or vegetable extracts. Canned and instant gravies are also available. Gravy is commonly served with roasts, meatloaf, sandwiches, rice, noodles, fries (chips), mashed potatoes, or biscuits (North America; see biscuits an

fluid that does not follow Newton's Law of Viscosity, viscosity (the measure of a fluid's ability to resist gradual deformation by shear or tensile stresses) of non-Newtonian fluids is dependent on shear rate or shear rate history

thumb|Mānuka honey is an example of a thixotropic material. Thixotropy is a time-dependent shear thinning property. Certain gels or fluids that are thick or viscous under static conditions will flow (become thinner, less viscous) over time when shaken, agitated, shear-stressed, or otherwise stressed (time-dependent viscosity). They then take a fixed time to return to a more viscous state. Some non-Newtonian pseudoplastic fluids show a time-dependent change in viscosity; the longer the fluid undergoes shear stress, the lower its viscosity. A thixotropic fluid is a fluid which takes a finite tim

Viscoelasticity is a material property that combines both viscous and elastic characteristics. Many materials have such viscoelastic properties, especially materials that consist of large molecules. Polymers are viscoelastic because their macromolecules can make temporary entanglements with neighbouring molecules which causes elastic properties. After some time these entanglements will disappear again and the macromolecules will flow into other positions where new entanglements will be made (viscous properties).

Mattel toy

toy putty (slime) based on silicone polymers and boric acid

relative change of length with respect the original length

thumb|350x350px|Plot of shear rate as a function of the shear stress. Dilatants in green. A dilatant (, ) (also termed shear thickening) material is one in which viscosity increases with the rate of shear strain. Such a shear thickening fluid, also known by the initialism STF, is an example of a non-Newtonian fluid. This behaviour is usually not observed in pure materials, but can occur in suspensions.

material that behaves as a rigid body at low stresses but flows as a viscous fluid at high stress

In continuum mechanics, rheopecty or rheopexy is the rare property of some non-Newtonian fluids to show a time-dependent increase in viscosity (time-dependent viscosity); the longer the fluid undergoes shearing force, the higher its viscosity. Rheopectic fluids, such as some lubricants, thicken or solidify when shaken. The opposite and much more common type of behaviour, in which fluids become less viscous the longer they undergo shear, is called thixotropy.

Viili (Finnish) or Fil (Swedish) is a mesophilic fermented milk product found in the Nordic countries, particularly Finland and Sweden. Viili is similar to yoghurt or kefir, but when left unmixed, its texture is malleable, or "long". The metabolism of the bacteria used in the fermentation also gives viili a slightly different taste.

non-Newtonian fluid behavior

product of shear strain rate and relaxation time in viscoelastic flows

theory

adhesive applied to screw threads to prevent unwanted loosening

physical law

in materials engineering, the ratio of stress to strain under vibratory conditions

D3O is the namesake ingredient brand of British company D3O Lab, specializing in rate-sensitive impact protection technologies based on dilatant materials, also known as viscoelastic or shear thickening materials.

viscoelastic material

Material with potential military applications

Hemorheology, also spelled haemorheology (haemo from Greek 'αἷμα, haima 'blood'; and rheology, from Greek ῥέω rhéō, 'flow' and -λoγία, -logia 'study of'), or blood rheology, is the study of flow properties of blood and its elements of plasma and cells. Proper tissue perfusion can occur only when blood's rheological properties are within certain levels. Alterations of these properties play significant roles in disease processes. Blood viscosity is determined by plasma viscosity, hematocrit (volume fraction of red blood cell, which constitute 99.9% of the cellular elements) and mechanical proper

viscoelastic material having the properties both of elasticity and viscosity