Describe the graph of flow versus viscosity. 20.2 Blood Flow, Blood Pressure, and Resistance 2022-12-13
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The graph of flow versus viscosity is a representation of the relationship between two properties of a fluid: its ability to flow and its resistance to flow. In general, the viscosity of a fluid is a measure of its thickness or resistance to flow, while flow is a measure of the ease with which a fluid can move through a system.
When plotted on a graph, the flow of a fluid is typically represented on the x-axis, while the viscosity of the fluid is plotted on the y-axis. The resulting graph can take on a variety of shapes, depending on the specific properties of the fluid being plotted.
One common type of graph of flow versus viscosity is a linear graph, in which the slope of the line represents the fluid's viscosity. In this type of graph, a fluid with a high viscosity will have a steeper slope, while a fluid with a low viscosity will have a shallower slope.
Another type of graph of flow versus viscosity is a non-linear graph, in which the relationship between flow and viscosity is not a straight line. This type of graph is often seen in fluids that exhibit non-Newtonian behavior, such as fluids that are shear-thinning or shear-thickening. Shear-thinning fluids, such as ketchup or paint, become less viscous when subjected to shear stress, while shear-thickening fluids, such as toothpaste or non-Newtonian mud, become more viscous under the same conditions.
In addition to these two common types of graphs, there are also other shapes that may be seen on a graph of flow versus viscosity. For example, a fluid with a constant viscosity over a range of flows may produce a horizontal line on the graph, while a fluid with a viscosity that increases rapidly at low flows and then levels off may produce a curve on the graph.
Overall, the shape of the graph of flow versus viscosity is a useful tool for understanding the behavior of fluids and predicting how they will behave under different conditions. It can be used to compare the properties of different fluids, to design systems that involve the flow of fluids, and to understand the behavior of fluids in various applications.
Blood Flow, Blood Pressure, and Resistance
I like the linear plot because it shows the magnitude of viscosity variation as you change shear rate by changing injection velocity or fill time. From the table below, you can use the injection pressure at transfer and fill time to develop the viscosity curve. One form of hydrostatic pressure is blood pressure, the force exerted by blood upon the walls of the blood vessels or the chambers of the heart. But sometimes foe measure the bigger amount the bigger pressure or bar is used. The smaller blood vessel radius, the lesson blood or fluid flow. In the venous system, the opposite relationship is true.
(Solved) Describe the graph flow versus viscosity?
While leukocytes and platelets are normally a small component of the formed elements, there are some rare conditions in which severe overproduction can impact viscosity as well. Viscous or Non-viscous Flow Liquid flow can be viscous or non-viscous. I am Indrani Banerjee. As evidenced in other experiments, increasing tube radius decreases resistance thus increasing flow rate. In the venous system, constriction increases blood pressure as it does in arteries; the increasing pressure helps to return blood to the heart. This expansion and recoiling effect, known as the pulse, can be palpated manually or measured electronically.
Understanding Polymer Flow: Interpreting the Viscosity Curve
Describe the graph of flow versus viscosity. Explain why pressure changes are not the best way to control blood flow. The systolic pressure is the higher value typically around 120 mm Hg and reflects the arterial pressure resulting from the ejection of blood during ventricular contraction, or systole. Explain the effect that the viscosity change had on flow rate. Flow tube radius change has a direct effect on flow rate.
As vessel radius increased so did flow rate. If it is weak, systolic pressure has fallen, and medical intervention may be warranted. Compliance Compliance is the ability of any compartment to expand to accommodate increased content. Ischemia in turn leads to hypoxia—decreased supply of oxygen to the tissues. If blood is to flow from the veins back into the heart, the pressure in the veins must be greater than the pressure in the atria of the heart.
Blood vessel radius is the single most important factor in determining blood flow resistance. This increased pressure causes blood to flow upward, opening valves superior to the contracting muscles so blood flows through. Some molders waste hours on this, to the point of changing the profile daily. . Part c shows that blood pressure drops unevenly as blood travels from arteries to arterioles, capillaries, venules, and veins, and encounters greater resistance.
Starting with the basics: The graph shows a typical curve. As leg muscles contract, for example during walking or running, they exert pressure on nearby veins with their numerous one-way valves. Low blood volume, called hypovolemia, may be caused by bleeding, dehydration, vomiting, severe burns, or some medications used to treat hypertension. In this experiment, radius, viscosity, and length remained constant, and pressure and flow rate were the variables. Note the importance of the one-way valves to assure that blood flows only in the proper direction.
This is a leading cause of hypertension and coronary heart disease, as it causes the heart to work harder to generate a pressure great enough to overcome the resistance. The majority of hospitals and clinics have automated equipment for measuring blood pressure that work on the same principles. Hint: look at the relationship of the variables in the equation. Initially, no sounds are heard since there is no blood flow through the vessels, but as air pressure drops, the cuff relaxes, and blood flow returns to the arm. In clinical practice, this pressure is measured in mm Hg and is usually obtained using the brachial artery of the arm. Common sites to find a pulse include temporal and facial arteries in the head, brachial arteries in the upper arm, femoral arteries in the thigh, popliteal arteries behind the knees, posterior tibial arteries near the medial tarsal regions, and dorsalis pedis arteries in the feet. Describe the deformation and flow of a fluid.
Normally the viscosity of blood does not change over short periods of time. The same equation also applies to engineering studies of the flow of fluids. Alternatively, plaque can break off and travel through the bloodstream as an embolus until it blocks a more distant, smaller artery. If all parts are short and sinky with no blush, flash, streaks, burns, or other defect, then there is no reason to profile injection speed. Flow and pressure both are the key factor for the measuring of compressed air system, which is helps us to understand the size of the compressor which is used in the system and also the power is applied to the system with the amount of the flow rate and air volume. The two primary determinants of blood viscosity are the formed elements and plasma proteins. The relationships among blood vessels that can be compared include a vessel diameter, b total cross-sectional area, c average blood pressure, and d velocity of blood flow.
