(Solved): Biological fluid mechanics Most biological fluids and tissues, such as blood and skin, can be cons ...

Biological fluid mechanics

Most biological fluids and tissues, such as blood and skin, can be considered respectively as either "complex fluids" or "complex solids" because of their frequency-dependent mechanical properties: (a) List four complex biological fluids that can be found in the human body. [4] (b) Sketch a double logarithmic graph showing a generic example of frequencydependent viscoelastic moduli for a "complex fluid". Describe in detail the frequency behaviour of the moduli in the different frequency windows defined by the crossover points of the moduli shown in the graph. [6] (c) Sketch a double logarithmic graph showing a generic example of frequencydependent viscoelastic moduli for a "complex solid". Describe in detail the frequency behaviour of the moduli in the different frequency windows defined by the crossover points of the moduli shown in the graph. [6] (d) Sketch the temporal (time) response of the shear strain for both a Newtonian fluid and a purely elastic solid when a sinusoidal shear stress is applied to them. [4]