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Usually a fluid gradient refers to the pressure gradient in any kind of fluid. It is a quantity that shows which direction and how fast the pressure changes around a location.
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What is shear flow?
Shear flow is the flow induced by a force gradient (for a fluid). For solids, it is the gradient of shear stress forces throughout the body.
How do you find the gradient of a parabola?
(-1.5,0) (1.5,0) what is the gradient?
How to calculate the gradient from the non linear graph?
Draw a tangent to the curve at the point where you need the gradient and find the gradient of the line by using gradient = up divided by across
What does a positive and a negative gradient look like?
A positive gradient goes uphill from left to right A negative gradient goes downhill from left to right
How want to know that the gradient of a curve in displacement-time graph is increasing or decreasing?
If the gradient is a positive number the curve is increasing, and if the gradient is a negative number it is decreasing.
What is the driving force for fluid flow?
pressure gradient is
What conditions must be present for a fluid to flow?
pressure gradient
What is shear flow?
Shear flow is the flow induced by a force gradient (for a fluid). For solids, it is the gradient of shear stress forces throughout the body.
What is the relationship between shear stress and velocity gradient in a Newtonian fluid?
linear
What happens as the concentration gradient of the intersititial fluid increases?
As the concentration gradient of the interstitial fluid increased, the potassium concentration increased and there was a noticeable decrease in urine volume excreted.
What is the difference between low pressure gradient and high pressure gradient system?
A low pressure gradient is a state where the difference in the fluid density between one side of a divider is close to the fluid density of the other side. A high pressure gradient is a state where the difference in the fluid density between one side of the divider is very different to the fluid denisity of the other. For instance, a cell wall is permiable and allows some matter to migrate across the barrier through diffusion. If your blood fluid is carrying a small amount of salt compared to a high salt content on the interior of the cell, there is a high pressure gradient between the two fluid medium. The cell will swell and diffusion will try to balance the salt content from one side of the cell wall to the other by migrating fresh water into the cell and migrating salt to the outside.
What establishes the lymph pressure gradient?
The fluid pressure gradient in the lymphatic system is established by two things. The first is movements caused by breathing, and the second is contractions of the skeletal muscles.
What effect does the concentration gradient of the interstitial fluid have on the maximum urine concentration?
The urine concentration increased.
Why does the density of an incompressible fluid remains constant?
In incompressible fluid density is same because velocity gradient is same on every layer of liquid at any cross section.
What is a velocity potential?
A velocity potential is a scalar function whose gradient is equal to the velocity of the fluid at that point. If a fluid is incompressible and has zero viscosity (an ideal fluid) its velocity as a function of position can always be described by a velocity potential. For a real fluid this is not generally possible.
How does the body establish a pressure gradient for fluid flow?
A pressure gradient exists in the arteries because the heart actively pumps the blood; additionally, the elasticity of the larger arteries helps force the blood along. There is a lower pressure gradient within the veins that is generated by the muscles squeezing the blood along back to the heart (assisted by valves within the veins).
What is force speed and density how are they connected?
In fluid mechanics, the force density is the negative gradient of pressure. It has the physical dimensions of force per unit volume.
