Fluid Film Thickness in Terms of Flow of Lubricant Calculator

✖Length of slot in direction of flow is the length of the rectangular slot through which viscous oil flows.ⓘ Length of slot in direction of flow [l]			+10% -10%
✖The Dynamic Viscosity of Lubricant is the resistance to movement of one layer of fluid over another.ⓘ Dynamic Viscosity of Lubricant [μ_l]			+10% -10%
✖Flow of lubricant from slot can be defined as the amount of lubricant flowing per unit time between the slots.ⓘ Flow of lubricant from slot [Q_slot]			+10% -10%
✖Breadth of slot for oil flow is defined as the length of the rectangular slot in a plane perpendicular to the direction of flow.ⓘ Breadth of slot for oil flow [b]			+10% -10%
✖Pressure difference between slot sides is the difference in pressure intensities at two different sides of the slot.ⓘ Pressure difference between slot sides [ΔP]			+10% -10%

✖Oil film thickness is defined as the thickness of the oil film between the two parts in relative motion.ⓘ Fluid Film Thickness in Terms of Flow of Lubricant [h]

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Fluid Film Thickness in Terms of Flow of Lubricant Solution

STEP 0: Pre-Calculation Summary

Formula Used

Oil film thickness = (Length of slot in direction of flow*12*Dynamic Viscosity of Lubricant*Flow of lubricant from slot/(Breadth of slot for oil flow*Pressure difference between slot sides))^(1/3)
h = (l*12*μ_l*Q_slot/(b*ΔP))^(1/3)
This formula uses 6 Variables

Variables Used

Oil film thickness - (Measured in Meter) - Oil film thickness is defined as the thickness of the oil film between the two parts in relative motion.
Length of slot in direction of flow - (Measured in Meter) - Length of slot in direction of flow is the length of the rectangular slot through which viscous oil flows.
Dynamic Viscosity of Lubricant - (Measured in Pascal Second) - The Dynamic Viscosity of Lubricant is the resistance to movement of one layer of fluid over another.
Flow of lubricant from slot - (Measured in Cubic Meter per Second) - Flow of lubricant from slot can be defined as the amount of lubricant flowing per unit time between the slots.
Breadth of slot for oil flow - (Measured in Meter) - Breadth of slot for oil flow is defined as the length of the rectangular slot in a plane perpendicular to the direction of flow.
Pressure difference between slot sides - (Measured in Pascal) - Pressure difference between slot sides is the difference in pressure intensities at two different sides of the slot.

STEP 1: Convert Input(s) to Base Unit

Length of slot in direction of flow: 48 Millimeter --> 0.048 Meter (Check conversion here)
Dynamic Viscosity of Lubricant: 220 Centipoise --> 0.22 Pascal Second (Check conversion here)
Flow of lubricant from slot: 15 Cubic Millimeter per Second --> 1.5E-08 Cubic Meter per Second (Check conversion here)
Breadth of slot for oil flow: 49 Millimeter --> 0.049 Meter (Check conversion here)
Pressure difference between slot sides: 5.1 Megapascal --> 5100000 Pascal (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

h = (l*12*μ_l*Q_slot/(b*ΔP))^(1/3) --> (0.048*12*0.22*1.5E-08/(0.049*5100000))^(1/3)

Evaluating ... ...

h = 1.96663330218532E-05

STEP 3: Convert Result to Output's Unit

1.96663330218532E-05 Meter -->0.0196663330218532 Millimeter (Check conversion here)

FINAL ANSWER

0.0196663330218532 ≈ 0.019666 Millimeter <-- Oil film thickness

(Calculation completed in 00.004 seconds)

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Created by Vaibhav Malani

National Institute of Technology (NIT), Tiruchirapalli

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Fluid Film Thickness in Terms of Flow of Lubricant Formula

LaTeX Go

What is Sliding Contact Bearing?

The sliding contact bearings in which the sliding action is along the circumference of a circle or an arc of a circle and carrying radial loads are known as journal or sleeve bearings.

How to Calculate Fluid Film Thickness in Terms of Flow of Lubricant?

Fluid Film Thickness in Terms of Flow of Lubricant calculator uses Oil film thickness = (Length of slot in direction of flow*12*Dynamic Viscosity of Lubricant*Flow of lubricant from slot/(Breadth of slot for oil flow*Pressure difference between slot sides))^(1/3) to calculate the Oil film thickness, The Fluid Film Thickness in Terms of Flow of Lubricant formula is defined as one-third of the power of the ratio product of 12 times the value of length of the slot, viscosity of the lubricant, and flow of lubricant to the product of dimension b and pressure difference. Oil film thickness is denoted by h symbol.

How to calculate Fluid Film Thickness in Terms of Flow of Lubricant using this online calculator? To use this online calculator for Fluid Film Thickness in Terms of Flow of Lubricant, enter Length of slot in direction of flow (l), Dynamic Viscosity of Lubricant (μ_l), Flow of lubricant from slot (Q_slot), Breadth of slot for oil flow (b) & Pressure difference between slot sides (ΔP) and hit the calculate button. Here is how the Fluid Film Thickness in Terms of Flow of Lubricant calculation can be explained with given input values -> 19.66633 = (0.048*12*0.22*1.5E-08/(0.049*5100000))^(1/3).

FAQ

What is Fluid Film Thickness in Terms of Flow of Lubricant?

The Fluid Film Thickness in Terms of Flow of Lubricant formula is defined as one-third of the power of the ratio product of 12 times the value of length of the slot, viscosity of the lubricant, and flow of lubricant to the product of dimension b and pressure difference and is represented as h = (l*12*μ_l*Q_slot/(b*ΔP))^(1/3) or Oil film thickness = (Length of slot in direction of flow*12*Dynamic Viscosity of Lubricant*Flow of lubricant from slot/(Breadth of slot for oil flow*Pressure difference between slot sides))^(1/3). Length of slot in direction of flow is the length of the rectangular slot through which viscous oil flows, The Dynamic Viscosity of Lubricant is the resistance to movement of one layer of fluid over another, Flow of lubricant from slot can be defined as the amount of lubricant flowing per unit time between the slots, Breadth of slot for oil flow is defined as the length of the rectangular slot in a plane perpendicular to the direction of flow & Pressure difference between slot sides is the difference in pressure intensities at two different sides of the slot.

How to calculate Fluid Film Thickness in Terms of Flow of Lubricant?

The Fluid Film Thickness in Terms of Flow of Lubricant formula is defined as one-third of the power of the ratio product of 12 times the value of length of the slot, viscosity of the lubricant, and flow of lubricant to the product of dimension b and pressure difference is calculated using Oil film thickness = (Length of slot in direction of flow*12*Dynamic Viscosity of Lubricant*Flow of lubricant from slot/(Breadth of slot for oil flow*Pressure difference between slot sides))^(1/3). To calculate Fluid Film Thickness in Terms of Flow of Lubricant, you need Length of slot in direction of flow (l), Dynamic Viscosity of Lubricant (μ_l), Flow of lubricant from slot (Q_slot), Breadth of slot for oil flow (b) & Pressure difference between slot sides (ΔP). With our tool, you need to enter the respective value for Length of slot in direction of flow, Dynamic Viscosity of Lubricant, Flow of lubricant from slot, Breadth of slot for oil flow & Pressure difference between slot sides and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Oil film thickness?

In this formula, Oil film thickness uses Length of slot in direction of flow, Dynamic Viscosity of Lubricant, Flow of lubricant from slot, Breadth of slot for oil flow & Pressure difference between slot sides. We can use 2 other way(s) to calculate the same, which is/are as follows -

Oil film thickness = Dynamic viscosity of oil*Area of moving plate on oil*Velocity of Moving Plate on Oil/Tangential force on moving plate
Oil film thickness = (Flow of Lubricant*Total Projected Area of Bearing Pad*Dynamic Viscosity of Lubricant/(Load Acting on Sliding Bearing*Flow Coefficient))^(1/3)

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