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Flow through tubes


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In English
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[Front]


What is the definition of flow
[Back]


the volume of fluid passing a given point per unit time

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11 questions
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What is the definition of flow
The volume of fluid passing a given point per unit time
What is the definition of velocity
The rate of movement of fluid particles along the tube
What determines the flow
Pressure difference between the 2 ends of the vessel
What determines the flow resistance
Nature of fluid ( viscosity ) The vessel e.g. length and cross sectional area
What causes turbulent flow
As the velocity increases, the velocity gradient breaks down and leads to fluid tumbling over and flow resistance greatly increases
What is viscocity
The extent which fluid layers resist sliding over each other Higher viscocity leads to slower central layers leading to slower average velocity
What vessels have high resistance
Arterioles Individual Capillaries --> however capillaries are in parallel which leads to the overall resistance being low
What factors affect the systolic pressure ( maximum arterial pressure )
Cardiac Output ( how hard the heart pushes it ) Total peripheral resistance How much compliance the arteries have