Anirudh Singh
National Institute of Technology (NIT), Jamshedpur
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## < 8 Other formulas that you can solve using the same Inputs

Sphericity of a cylindrical particle
Displacement of Body when initial velocity, time and acceleration are given
Displacement of Body=(Initial Velocity*Time Taken to Travel)+(Acceleration*(Time Taken to Travel)^2)/2 GO
Displacement of Body when initial velocity, final velocity and acceleration are given
Displacement of Body=((Final Velocity)^2-(Initial Velocity)^2)/(2*Acceleration) GO
Distance travelled in nth second( accelerated translatory motion)
Distance Traveled=Initial Velocity+((Acceleration*(2*Nth Second -1))/2) GO
Final Velocity of body
Final Velocity=Initial Velocity+Acceleration*(Time Taken to Travel) GO
Distance Traveled
Distance Traveled=Initial Velocity*T+(1/2)*Acceleration*(T)^2 GO
Extrusion and Wire drawing
Extrusion and Wire Drawing=Stretch Factor*ln(Ratio of Area) GO
Force
Force=Mass*Acceleration GO

### Bottom Gating Formula

Bottom Gating=Ratio of Area/sqrt(2*Acceleration)*2*(sqrt(Cylinder Height)-sqrt(Cylinder Height-Height of capillary rise/fall))
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## What is Aspiration effect?

For a mold made of a permeable material (e.g., sand), care should be taken to ensure that the pressure anywhere in the liquid metal stream does not fall below the atmospheric pressure.

## How to Calculate Bottom Gating?

Bottom Gating calculator uses Bottom Gating=Ratio of Area/sqrt(2*Acceleration)*2*(sqrt(Cylinder Height)-sqrt(Cylinder Height-Height of capillary rise/fall)) to calculate the Bottom Gating, Bottom Gating, the liquid metal is filled in the mold from bottom to top, thus avoiding the splashing and oxidation associated with vertical gating. . Bottom Gating and is denoted by Tbg symbol.

How to calculate Bottom Gating using this online calculator? To use this online calculator for Bottom Gating, enter Acceleration (a), Cylinder Height (H), Height of capillary rise/fall (h) and Ratio of Area (Rat.area) and hit the calculate button. Here is how the Bottom Gating calculation can be explained with given input values -> 0.01325 = 2/sqrt(2*12)*2*(sqrt(0.1)-sqrt(0.1-0.01)).

### FAQ

What is Bottom Gating?
Bottom Gating, the liquid metal is filled in the mold from bottom to top, thus avoiding the splashing and oxidation associated with vertical gating. and is represented as Tbg=Rat.area/sqrt(2*a)*2*(sqrt(H)-sqrt(H-h)) or Bottom Gating=Ratio of Area/sqrt(2*Acceleration)*2*(sqrt(Cylinder Height)-sqrt(Cylinder Height-Height of capillary rise/fall)). Acceleration is the rate of change in velocity to the change in time, Cylinder Height is the shortest distance between the 2 bases of a cylinder, The height of capillary rise/fall is the level to which the water rises in a capillary tube and Ratio of area is the ratio of initial to final area.
How to calculate Bottom Gating?
Bottom Gating, the liquid metal is filled in the mold from bottom to top, thus avoiding the splashing and oxidation associated with vertical gating. is calculated using Bottom Gating=Ratio of Area/sqrt(2*Acceleration)*2*(sqrt(Cylinder Height)-sqrt(Cylinder Height-Height of capillary rise/fall)). To calculate Bottom Gating, you need Acceleration (a), Cylinder Height (H), Height of capillary rise/fall (h) and Ratio of Area (Rat.area). With our tool, you need to enter the respective value for Acceleration, Cylinder Height, Height of capillary rise/fall and Ratio of Area and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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