Name four models that are used to characterize the relations

Name four models that are used to characterize the relationship between shear stress and shear rate for non-Newtonian fluids. Name three diseases that result in abnormal rheology of biological fluids. Hematocrit is: -The fraction of blood volume that is comprised of red blood cells. -The fraction of blood volume that is comprised of white blood cells. -The fraction of blood volume that is comprised of both red and white blood cells. -None of the above.

Solution

10. Four models are used for characterizing of the non-Newtonian fluids are Power law, Bingham, Casson fluids, and Herschel -Bulkley

11. Three diseases

a.Polycythemia: due to excess production of RBC and increased viscosity of blood

b. Cancer: Increased blood viscosity in oral blood cancer patients, having the poor prognosis.

c. The sickle cell anemia: Abnormally high viscosity of deoxygenated sickle cell, contains hemoglobin (HbSS) opposed to normal hemoglobin.

d. Cystic fibrosis: Contaminants and bacteria trapped in airway surface.

12.

the fraction of blood volume that is comprised of red blood cells. which increases the blood viscosity.