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The Dynamic Viscosity refers to the internal resistance of a fluid to flow when a force is applied. Check FAQs
μ=ΔPf(6vpistonLPCR3)(0.5D)
μ - Dynamic Viscosity?ΔPf - Pressure Drop due to Friction?vpiston - Velocity of Piston?LP - Piston Length?CR - Radial Clearance?D - Diameter of Piston?

Dynamic Viscosity for Pressure Drop over Length Example

With values
With units
Only example

Here is how the Dynamic Viscosity for Pressure Drop over Length equation looks like with Values.

Here is how the Dynamic Viscosity for Pressure Drop over Length equation looks like with Units.

Here is how the Dynamic Viscosity for Pressure Drop over Length equation looks like.

12.7286Edit=33Edit(60.045Edit5Edit0.45Edit3)(0.53.5Edit)
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Dynamic Viscosity for Pressure Drop over Length Solution

Follow our step by step solution on how to calculate Dynamic Viscosity for Pressure Drop over Length?

FIRST Step Consider the formula
μ=ΔPf(6vpistonLPCR3)(0.5D)
Next Step Substitute values of Variables
μ=33Pa(60.045m/s5m0.45m3)(0.53.5m)
Next Step Prepare to Evaluate
μ=33(60.04550.453)(0.53.5)
Next Step Evaluate
μ=1.27285714285714Pa*s
Next Step Convert to Output's Unit
μ=12.7285714285714P
LAST Step Rounding Answer
μ=12.7286P

Dynamic Viscosity for Pressure Drop over Length Formula Elements

Variables
Dynamic Viscosity
The Dynamic Viscosity refers to the internal resistance of a fluid to flow when a force is applied.
Symbol: μ
Measurement: Dynamic ViscosityUnit: P
Note: Value should be greater than 0.
Pressure Drop due to Friction
Pressure Drop due to Friction is the decrease in the value of the pressure due to the influence of friction.
Symbol: ΔPf
Measurement: PressureUnit: Pa
Note: Value can be positive or negative.
Velocity of Piston
Velocity of piston in reciprocating pump is defined as the product of sin of angular velocity and time, radius of crank and angular velocity.
Symbol: vpiston
Measurement: SpeedUnit: m/s
Note: Value can be positive or negative.
Piston Length
Piston Length is how far the piston travels in the cylinder, which is determined by the cranks on the crankshaft. length.
Symbol: LP
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Radial Clearance
Radial Clearance or gap is the distance between two surfaces adjacent to each other.
Symbol: CR
Measurement: LengthUnit: m
Note: Value can be positive or negative.
Diameter of Piston
Diameter of Piston is the actual diameter of the piston while the bore is the size of the cylinder and will always be larger than the piston.
Symbol: D
Measurement: LengthUnit: m
Note: Value should be greater than 0.

Other Formulas to find Dynamic Viscosity

​Go Dynamic Viscosity given Velocity of Fluid
μ=dp|dr0.5(R2-CHRuFluid)
​Go Dynamic Viscosity given Shear Stress in Piston
μ=𝜏1.5DvpistonCHCH
​Go Dynamic Viscosity given velocity of piston
μ=FTotalπvpistonLP(0.75((DCR)3)+1.5((DCR)2))

Other formulas in When Piston Velocity is Negligible to Average Velocity of Oil in Clearance Space category

​Go Velocity of Fluid
uOiltank=dp|dr0.5RR-CHRμ
​Go Pressure Gradient given Velocity of Fluid
dp|dr=uOiltank0.5RR-CHRμ
​Go Pressure Drop over Lengths of Piston
ΔPf=(6μvpistonLPCR3)(0.5D)
​Go Velocity of Piston for Pressure reduction over Length of Piston
vpiston=ΔPf(3μLPCR3)(D)

How to Evaluate Dynamic Viscosity for Pressure Drop over Length?

Dynamic Viscosity for Pressure Drop over Length evaluator uses Dynamic Viscosity = Pressure Drop due to Friction/((6*Velocity of Piston*Piston Length/(Radial Clearance^3))*(0.5*Diameter of Piston)) to evaluate the Dynamic Viscosity, The Dynamic Viscosity for Pressure Drop over Length is defined as the resistance offered by fluid on relative motion. Dynamic Viscosity is denoted by μ symbol.

How to evaluate Dynamic Viscosity for Pressure Drop over Length using this online evaluator? To use this online evaluator for Dynamic Viscosity for Pressure Drop over Length, enter Pressure Drop due to Friction (ΔPf), Velocity of Piston (vpiston), Piston Length (LP), Radial Clearance (CR) & Diameter of Piston (D) and hit the calculate button.

FAQs on Dynamic Viscosity for Pressure Drop over Length

What is the formula to find Dynamic Viscosity for Pressure Drop over Length?
The formula of Dynamic Viscosity for Pressure Drop over Length is expressed as Dynamic Viscosity = Pressure Drop due to Friction/((6*Velocity of Piston*Piston Length/(Radial Clearance^3))*(0.5*Diameter of Piston)). Here is an example- 127.2857 = 33/((6*0.045*5/(0.45^3))*(0.5*3.5)).
How to calculate Dynamic Viscosity for Pressure Drop over Length?
With Pressure Drop due to Friction (ΔPf), Velocity of Piston (vpiston), Piston Length (LP), Radial Clearance (CR) & Diameter of Piston (D) we can find Dynamic Viscosity for Pressure Drop over Length using the formula - Dynamic Viscosity = Pressure Drop due to Friction/((6*Velocity of Piston*Piston Length/(Radial Clearance^3))*(0.5*Diameter of Piston)).
What are the other ways to Calculate Dynamic Viscosity?
Here are the different ways to Calculate Dynamic Viscosity-
  • Dynamic Viscosity=Pressure Gradient*0.5*((Horizontal Distance^2-Hydraulic Clearance*Horizontal Distance)/Fluid Velocity)OpenImg
  • Dynamic Viscosity=Shear Stress/(1.5*Diameter of Piston*Velocity of Piston/(Hydraulic Clearance*Hydraulic Clearance))OpenImg
  • Dynamic Viscosity=Total Force in Piston/(pi*Velocity of Piston*Piston Length*(0.75*((Diameter of Piston/Radial Clearance)^3)+1.5*((Diameter of Piston/Radial Clearance)^2)))OpenImg
Can the Dynamic Viscosity for Pressure Drop over Length be negative?
No, the Dynamic Viscosity for Pressure Drop over Length, measured in Dynamic Viscosity cannot be negative.
Which unit is used to measure Dynamic Viscosity for Pressure Drop over Length?
Dynamic Viscosity for Pressure Drop over Length is usually measured using the Poise[P] for Dynamic Viscosity. Pascal Second[P], Newton Second per Square Meter[P], Millinewton Second per Square Meter[P] are the few other units in which Dynamic Viscosity for Pressure Drop over Length can be measured.
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