Fluid flow 

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24 Terms

1

Pascals

________ principle if pressure is applied to an enclosed system it is transmitted undiminished in the system.

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2

Streamlines

________ visualize the fluid flow, its tangent gives info.

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3

Bernoullis principle

________ tells us that the sum of the pressures is constant.

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4

Hagen Poiseuilles

________ law the change in pressure is proportional to the resistance of fluids.

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5

internal friction

If there is no viscosity there will be no ________ between the fluid.

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6

Turbulent flow

________: we have relatively circular streamlines and speed of the fluid is faster.

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7

Medical relevance

________: RADIAL PULSE; due to periodicity of the heart cycle the changing pressure can be detected as palpitations at the arteries and also find out number of heartbeats.

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8

Laminar flow

________: when the streamlines are parallel to each other.

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9

Hydrostatic pressure

________: considering resting fluids, pressure due to the weight of a fluid.

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10

Blood

________ and aid are considered to be fluids and the tubes are assumed to have rigid walls.

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11

Stokes law

________ describes the movement of a spherical object in a viscous medium.

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12

Stationary flow

________: the streamlines do not change at any point.

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13

Static pressure

________: ratio of force exerted on a certain area.

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14

Static pressure

ratio of force exerted on a certain area

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15

Hydrostatic pressure

considering resting fluids, pressure due to the weight of a fluid

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16

High pressure

low pressure, pressure at IV point is larger than atmospheric pressure so Hydrostatic pressure provides the pressure difference

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17

Dynamic pressure

if a fluid is moving at certain speed it has kinetic energy, this pressure is the kinetic energy of a fluid with a given volume

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18

Medical relevance

RADIAL PULSE; due to periodicity of the heart cycle the changing pressure can be detected as palpitations at the arteries and also find out number of heartbeats

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19

Ideal fluids

viscosity = 0

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20

a) Newtonian

constant viscosity

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21

b) Non-Newtonian

not constant viscosity

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22

Stationary flow

the streamlines do not change at any point

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23

Laminar flow

when the streamlines are parallel to each other

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24

Turbulent flow

we have relatively circular streamlines and speed of the fluid is faster

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