The exclusion of shear properties in blood flow modeling by using the newtonian. Plasma the plasma is the light yellow liquid portion of the blood and is about 90% water. Blood is a heterogeneous multiphase mixture of solid corpuscles red blood cells, white blood cells and platelets suspended in a liquid plasma which is an aqueous solution of proteins, organic molecules and minerals refer to figure1. When the ventricle contracts, a volume of blood is rapidly ejected into the arterial vessels. Study of blood and its disease is known as hematology. For biomechanics the most important information we need is the constitutive equation. What are the basic properties of the blood flow in the human body. The risk of accidental blood and body fluid bbf exposure is a daily concern for health care workers throughout the world, and various strategies have been introduced during the past decade to. Shearthinning properties of blood in large arteries.
Introduction to fluid mechanics the air we breathe, the water we drink, and the blood and other liquids that flow in our bodies demonstrate the close dependence of our lives on various fluids. Karkenahalli srinivas computational fluid dynamics 4. Physical parameters of blood as a non newtonian fluid ncbi. Physical systems and applications as diverse as fluid flow in pipes, the flow of blood. One human study found dandelion to be an effective diuretic.
Its composition and function the blood in our circulatory system is a watery based fluid and consists of two basic components. First we discuss intensiveand extensive propertiesand define density and specific gravity. Since the outflow to the arteriole is relatively slow because of their high resistance to flow, the. Human blood is a nonnewtonian fluid, which shows shearthinning behavior. Mathematical simulations of blood flow require an appropriate constitutive model that accurately reflects its unique rheological properties. Blood is a liquid connective tissue that contains cellular elements blood cells and fluid matrix plasma.
Physical parameters of blood as a non newtonian fluid. The rheological characteristics of blood are determined by the properties of these com. Fluids are those substances which can flow when an external force is applied on it. Medium with bloodanalog mechanical properties for cardiovascular. An important mechanical property of fluids is viscosity. Shear rate flow property blood viscosity couette flow shear. Pdf blood is a complex suspension that demonstrates several nonnewtonian. Newtonian and nonnewtonian blood flow over a backward.
Properties of fluids in this chapter, we discuss properties that are encountered in the analysis of fluid flow. Physics notes of mechanical properties of fluids download pdf. Toshio nakayama sample cfd results university of sydney tohoku university contact. Blood helps in the transportation of different substances throughout the body. However thurston 21 reported that viscoelasticity is known to be a basic rheological property of blood. Pdf physical parameters of blood as a non newtonian fluid. Pdf nonnewtonian rheology in blood circulation researchgate.
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