Fluid dynamics researchers [10-16] reported that the flow pattern and drying pattern of Non-Newtonian fluid depends on various physical properties such as viscosity

Fluid dynamics researchers 10-16 reported that the flow pattern and drying pattern of Non-Newtonian fluid depends on various physical properties such as viscosity, surface tension, wettability and thermal diffusivity. Most of fluid dynamics researchers 12-17 were carried out experimental and numerical studied to explore the flow configuration of Non-Newtonian fluid during evaporation and drying of drop and they stated that the configuration of drying drops depends on the surface tension, viscosity and wettability
As it is non- Newtonian fluid, its viscosity depends on size and velocity of drop that form a stain after impact. In addition, the viscosity of blood decrease with increasing temperature and increases with increasing hematocrit. Similarly, surface tension, also referred to as the surface energy, play key role in generation of drops and their impact on surfaces. It decreases with increasing temperature and is affected by chemicals presented within the blood. To minimize the error in predication bloodletting incident, accurate and reliable measurement blood’s properties is vital. In this background, the blood properties were measured.

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