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The Coefficient of Discharge or efflux coefficient is the ratio of the actual discharge to the theoretical discharge. Check FAQs
Cd=2AT((Hi)-(Hf))ttotala29.81
Cd - Coefficient of Discharge?AT - Area of Tank?Hi - Initial Height of Liquid?Hf - Final Height of Liquid?ttotal - Total Time Taken?a - Area of Orifice?

Coefficient of Discharge given Time for Emptying Tank Example

With values
With units
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Here is how the Coefficient of Discharge given Time for Emptying Tank equation looks like with Values.

Here is how the Coefficient of Discharge given Time for Emptying Tank equation looks like with Units.

Here is how the Coefficient of Discharge given Time for Emptying Tank equation looks like.

0.7865Edit=21144Edit((24Edit)-(20.1Edit))30Edit9.1Edit29.81
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Coefficient of Discharge given Time for Emptying Tank Solution

Follow our step by step solution on how to calculate Coefficient of Discharge given Time for Emptying Tank?

FIRST Step Consider the formula
Cd=2AT((Hi)-(Hf))ttotala29.81
Next Step Substitute values of Variables
Cd=21144((24m)-(20.1m))30s9.129.81
Next Step Prepare to Evaluate
Cd=21144((24)-(20.1))309.129.81
Next Step Evaluate
Cd=0.786502312252424
LAST Step Rounding Answer
Cd=0.7865

Coefficient of Discharge given Time for Emptying Tank Formula Elements

Variables
Functions
Coefficient of Discharge
The Coefficient of Discharge or efflux coefficient is the ratio of the actual discharge to the theoretical discharge.
Symbol: Cd
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Area of Tank
The Area of tank is a variable from the concept of emptying the tank through orifice.
Symbol: AT
Measurement: AreaUnit:
Note: Value should be greater than 0.
Initial Height of Liquid
The Initial height of liquid is a variable from the tank emptying through an orifice at its bottom.
Symbol: Hi
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Final Height of Liquid
The Final height of liquid is a variable from the tank emptying through an orifice at its bottom.
Symbol: Hf
Measurement: LengthUnit: m
Note: Value can be positive or negative.
Total Time Taken
Total Time Taken is the total time taken by the body to cover that space.
Symbol: ttotal
Measurement: TimeUnit: s
Note: Value can be positive or negative.
Area of Orifice
The Area of Orifice is often a pipe or tube of varying cross-sectional area, and it can be used to direct or modify the flow of a fluid (liquid or gas).
Symbol: a
Measurement: AreaUnit:
Note: Value should be greater than 0.
sqrt
A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number.
Syntax: sqrt(Number)

Other Formulas to find Coefficient of Discharge

​Go Coefficient of discharge
Cd=QaQth
​Go Coefficient of discharge for area and velocity
Cd=vaAaVthAt
​Go Coefficient of Discharge given Time of Emptying Hemispherical Tank
Cd=π(((43)Rt((Hi32)-(Hf32)))-((25)((Hi52)-(Hf)52)))ttotala(29.81)
​Go Coefficient of Discharge given Time of Emptying Circular Horizontal Tank
Cd=4L((((2r1)-Hf)32)-((2r1)-Hi)32)3ttotala(29.81)

Other formulas in Flow Rate category

​Go Discharge through large rectangular orifice
QO=(23)Cdb(29.81)((Hb1.5)-(Htop1.5))
​Go Discharge through fully sub-merged orifice
QO=Cdw(Hb-Htop)(29.81HL)
​Go Discharge through partially sub-merged orifice
QO=(Cdw(Hb-HL)(29.81HL))+((23)Cdb(29.81)((HL1.5)-(Htop1.5)))
​Go Discharge in Convergent-Divergent Mouthpiece
QM=ac29.81Hc

How to Evaluate Coefficient of Discharge given Time for Emptying Tank?

Coefficient of Discharge given Time for Emptying Tank evaluator uses Coefficient of Discharge = (2*Area of Tank*((sqrt(Initial Height of Liquid))-(sqrt(Final Height of Liquid))))/(Total Time Taken*Area of Orifice*sqrt(2*9.81)) to evaluate the Coefficient of Discharge, The Coefficient of Discharge given Time for Emptying Tank is known when considering a tank containing some liquid up to a height of H 1. Let 'T' be the time taken for emptying the tank through an orifice at the bottom, 'A' and 'a' be the area of the tank and orifice. Coefficient of Discharge is denoted by Cd symbol.

How to evaluate Coefficient of Discharge given Time for Emptying Tank using this online evaluator? To use this online evaluator for Coefficient of Discharge given Time for Emptying Tank, enter Area of Tank (AT), Initial Height of Liquid (Hi), Final Height of Liquid (Hf), Total Time Taken (ttotal) & Area of Orifice (a) and hit the calculate button.

FAQs on Coefficient of Discharge given Time for Emptying Tank

What is the formula to find Coefficient of Discharge given Time for Emptying Tank?
The formula of Coefficient of Discharge given Time for Emptying Tank is expressed as Coefficient of Discharge = (2*Area of Tank*((sqrt(Initial Height of Liquid))-(sqrt(Final Height of Liquid))))/(Total Time Taken*Area of Orifice*sqrt(2*9.81)). Here is an example- 0.80763 = (2*1144*((sqrt(24))-(sqrt(20.1))))/(30*9.1*sqrt(2*9.81)).
How to calculate Coefficient of Discharge given Time for Emptying Tank?
With Area of Tank (AT), Initial Height of Liquid (Hi), Final Height of Liquid (Hf), Total Time Taken (ttotal) & Area of Orifice (a) we can find Coefficient of Discharge given Time for Emptying Tank using the formula - Coefficient of Discharge = (2*Area of Tank*((sqrt(Initial Height of Liquid))-(sqrt(Final Height of Liquid))))/(Total Time Taken*Area of Orifice*sqrt(2*9.81)). This formula also uses Square Root (sqrt) function(s).
What are the other ways to Calculate Coefficient of Discharge?
Here are the different ways to Calculate Coefficient of Discharge-
  • Coefficient of Discharge=Actual Discharge/Theoretical DischargeOpenImg
  • Coefficient of Discharge=(Actual Velocity*Actual Area)/(Theoretical Velocity*Theoretical Area)OpenImg
  • Coefficient of Discharge=(pi*(((4/3)*Hemispherical Tank Radius*((Initial Height of Liquid^(3/2))-(Final Height of Liquid^(3/2))))-((2/5)*((Initial Height of Liquid^(5/2))-(Final Height of Liquid)^(5/2)))))/(Total Time Taken*Area of Orifice*(sqrt(2*9.81)))OpenImg
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