If the beef patty is subjected to oscillatory test which gives the storage modulus of 500 pa and loss modulus of 20 pa, calculate the phase angle (delta) of the sample
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Malvar, Sara; Carmo, Bruno S.; Cunha, Francisco R.
2017-11-01
The rheological nature of an active suspension of nematodes is discussed. The nematode chosen for the study is Caenorhabditis elegans and its motion is subjected to the time reversibility of creeping flows. We investigate how the movement of the nematodes under different volumetric fractions alter the fluid rheological characteristics, considering collective behavior. We provide a deep discussion based on the experimental data obtained through a rotating disk rheometer. Oscillatory shear and step strain tests were conducted in order to present a discussion regarding zero shear viscosity and relaxation time for different nematodes concentrations. Moreover, theassociated time scales