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# When the speed of a fluid flowing in a horizontal pipe increases what happens to the internal pressure?

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Due to friction between the fluid and the walls of the pipe, pressure increases within the pipe.

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## Related Questions

The internal pressure decreases as can be deducted from the Bernoulli equation P + 0.5 (d) (v)^2 + (d)(g)(h) = constant in a streamlined flow, where d = density. When v increases, P decreases as h = height, is constant.

Air flowing quickly over the open top of a vertical tube lowers the air pressure in it. This causes liquid in the tube to rise. (It rises due to the higher pressure acting on the other end. The tube is marked to indicate the wind speed. Alternatively, if the open vertical tube is in still air and it is connected at its lower end with a horizontal tube containing a flowing liquid, the liquid in the vertical tube will fall when the horizontal flow past the lower end increases.

viscosity is a substances' internal resistance or friction that keeps it from flowing. If viscosity increases there is more friction so it flows slower than a substance with low viscosity.

Nope. The blood pressure actually decreases when your heart relaxes. Although the heart relaxes, it is still in pressure or else your blood would stop flowing which to some people is a bad thing.

The flowing of electricity (amperage) is governed by the internal resistance of the connected device.

Wind flowing from one atmosphere to the other while flowing to a low pressure to a high pressure.

What you will notice is what is called Bernoulli's Law. As air passes along between two flat surfaces, pressure increases. If the pressure beneath the top surface increases and surpasses the pressure above it, lift results. Sufficient lift will cause the top surface to rise above the lower.

A non-volatile solute affects increases osmotic pressure. This is a colligative property. There will be a higher osmotic pressure required to prevent the solvent from flowing into the solution because the solvent has a higher chemical potential without solute in it.

There are two joule's laws. The first shows how much heat is generated by a current flowing through a conductor. The second states that a gas's internal energy does not change with volume or pressure, but with temperature.

Not directly, although oddly enough, it does keep air from flowing up out to space. Air flows as wind as a result of horizontal pressure differences in the atmosphere. The greatest and most obvious pressure difference at all times is the vertical pressure difference. Gravity happens to balance this vertical pressure gradient force almost perfectly, keeping the atmosphere in hydrostatic equilibrium.

The pressure exerted by the blood flowing through the arterial walls is known as blood pressure

Air pressure (in weather systems) does not migrate as such. Air pressure is a product of metrological conditions in the same way as an eddy in a stream is a product of the river flowing downstream. In an engineering and scientific sense, nature abhors a vacuum so air will always flow from an area of high pressure to an area of low pressure unless restricted by external or internal influences.

Yes. Viscosity is the resistance of a fluid to flowing. A high viscosity means low flowing (I specifically mention this because this is a huge pitfall) When silica content increases, and when temperature decreases, the viscosity of a magma increases along with it.

In order to calculate the internal capacity of a pipe use the formula pi x internal radius x internal radius x length of pipe where pi = 3. 142. This is the volume of a cylinder; pipe capacity is usually amount of flow per unit of time under given conditions of internal roughness, and viscosity of the flowing fluid with a given pressure loss per length unit

The energy behind a fire hydrant that is not flowing water is known as "static pressure". This is the water pressure that is normally available from the water main when the hydrant is closed.

the pressure whose pressure is to be calculated is flowing agaunst gravity

Bernoulli's Principle states that as the velocity of a fluid increases, the pressure of the fluid decreases. This is important in creating lift under an airplane's wing. Due to the shape of the wing, the velocity of the air (a fluid) flowing over the wing is higher, so the pressure over the wing is lower. The velocity of the air flowing under the wing is slower, so the pressure is higher. This creates lift which allows the airplane to take off and fly. Refer to the Related Links for an illustration.

Systolic is the number at which your blood stops flowing when they take blood pressure. This will be the top number. Diastolic is when it starts flowing again once they start loosening the cuff. This will be the bottom number.

The internal capacity of a pipe is pi x internal radius x internal radius x length of pipe where pi = 3.142 This is the volume of a cylinder; pipe capacity is usually amount of flow per unit of time under given conditions of internal roughness, and viscosity of the flowing fluid with a given pressure loss per length unit. Q = DELTA PRESSURE * PI*( DIAMETER TO FOURTH POWER)/ (128 * VISCOSITY* LENGTH) VISCOSITY OFWATER IS ABOUT 2X1O TO -5 POWER LB SECOND/FT SQUARED NOTE PRESSURE MUST BE BELOW AMOUNT THAT RUPTURES THE PIPE.

Root pressure tries to keep the water flowing but transpiration loses water from the leaves

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