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Cross-Sectional Area of Reservoir is the area of a reservoir that is obtained when a three-dimensional reservoir shape is sliced perpendicular to some specified axis at a point. Check FAQs
AR=Δt(23)Cd2gLw2(1h2-1HUpstream)
AR - Cross-Sectional Area of Reservoir?Δt - Time Interval?Cd - Coefficient of Discharge?g - Acceleration due to Gravity?Lw - Length of Weir Crest?h2 - Head on Downstream of Weir?HUpstream - Head on Upstream of Weir?

Cross Sectional Area given Time required to Lower Liquid Surface Example

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Here is how the Cross Sectional Area given Time required to Lower Liquid Surface equation looks like with Values.

Here is how the Cross Sectional Area given Time required to Lower Liquid Surface equation looks like with Units.

Here is how the Cross Sectional Area given Time required to Lower Liquid Surface equation looks like.

28.5014Edit=1.25Edit(23)0.66Edit29.8Edit3Edit2(15.1Edit-110.1Edit)
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Cross Sectional Area given Time required to Lower Liquid Surface Solution

Follow our step by step solution on how to calculate Cross Sectional Area given Time required to Lower Liquid Surface?

FIRST Step Consider the formula
AR=Δt(23)Cd2gLw2(1h2-1HUpstream)
Next Step Substitute values of Variables
AR=1.25s(23)0.6629.8m/s²3m2(15.1m-110.1m)
Next Step Prepare to Evaluate
AR=1.25(23)0.6629.832(15.1-110.1)
Next Step Evaluate
AR=28.5014251358758
LAST Step Rounding Answer
AR=28.5014

Cross Sectional Area given Time required to Lower Liquid Surface Formula Elements

Variables
Functions
Cross-Sectional Area of Reservoir
Cross-Sectional Area of Reservoir is the area of a reservoir that is obtained when a three-dimensional reservoir shape is sliced perpendicular to some specified axis at a point.
Symbol: AR
Measurement: AreaUnit:
Note: Value should be greater than 0.
Time Interval
Time interval is the time duration between two events/entities of interest.
Symbol: Δt
Measurement: TimeUnit: s
Note: Value should be greater than 0.
Coefficient of Discharge
The Coefficient of Discharge is ratio of actual discharge to theoretical discharge.
Symbol: Cd
Measurement: NAUnit: Unitless
Note: Value should be between 0 to 1.2.
Acceleration due to Gravity
The Acceleration due to Gravity is acceleration gained by an object because of gravitational force.
Symbol: g
Measurement: AccelerationUnit: m/s²
Note: Value should be greater than 0.
Length of Weir Crest
Length of Weir Crest is the measurement or extent of Weir Crest from end to end.
Symbol: Lw
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Head on Downstream of Weir
Head on Downstream of Weir pertains to the energy status of water in water flow systems and is useful for describing flow in hydraulic structures.
Symbol: h2
Measurement: LengthUnit: m
Note: Value can be positive or negative.
Head on Upstream of Weir
Head on Upstream of Weirr pertains to the energy status of water in water flow systems and is useful for describing flow in hydraulic structures.
Symbol: HUpstream
Measurement: LengthUnit: m
Note: Value can be positive or negative.
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 Cross-Sectional Area of Reservoir

​Go Cross Sectional Area given time required to Lower Liquid Surface using Bazins Formula
AR=Δtm2g(1h2-1HUpstream)2
​Go Cross Sectional Area given Time required to Lower Liquid for Triangular Notch
AR=Δt(815)Cd2gtan(θ2)(23)((1h232)-(1HUpstream32))

Other formulas in Time Required to Empty a Reservoir with Rectangular Weir category

​Go Time Required to Lower Liquid Surface
Δt=(2AR(23)Cd2gLw)(1h2-1HUpstream)
​Go Coefficient of Discharge for Time Required to Lower Liquid Surface
Cd=(2AR(23)Δt2gLw)(1h2-1HUpstream)

How to Evaluate Cross Sectional Area given Time required to Lower Liquid Surface?

Cross Sectional Area given Time required to Lower Liquid Surface evaluator uses Cross-Sectional Area of Reservoir = (Time Interval*(2/3)*Coefficient of Discharge*sqrt(2*Acceleration due to Gravity)*Length of Weir Crest)/(2*(1/sqrt(Head on Downstream of Weir)-1/sqrt(Head on Upstream of Weir))) to evaluate the Cross-Sectional Area of Reservoir, The Cross Sectional Area given Time required to Lower Liquid Surface is area of a two-dimensional shape that is obtained when a three-dimensional object - such as a cylinder. Cross-Sectional Area of Reservoir is denoted by AR symbol.

How to evaluate Cross Sectional Area given Time required to Lower Liquid Surface using this online evaluator? To use this online evaluator for Cross Sectional Area given Time required to Lower Liquid Surface, enter Time Interval (Δt), Coefficient of Discharge (Cd), Acceleration due to Gravity (g), Length of Weir Crest (Lw), Head on Downstream of Weir (h2) & Head on Upstream of Weir (HUpstream) and hit the calculate button.

FAQs on Cross Sectional Area given Time required to Lower Liquid Surface

What is the formula to find Cross Sectional Area given Time required to Lower Liquid Surface?
The formula of Cross Sectional Area given Time required to Lower Liquid Surface is expressed as Cross-Sectional Area of Reservoir = (Time Interval*(2/3)*Coefficient of Discharge*sqrt(2*Acceleration due to Gravity)*Length of Weir Crest)/(2*(1/sqrt(Head on Downstream of Weir)-1/sqrt(Head on Upstream of Weir))). Here is an example- 28.50143 = (1.25*(2/3)*0.66*sqrt(2*9.8)*3)/(2*(1/sqrt(5.1)-1/sqrt(10.1))).
How to calculate Cross Sectional Area given Time required to Lower Liquid Surface?
With Time Interval (Δt), Coefficient of Discharge (Cd), Acceleration due to Gravity (g), Length of Weir Crest (Lw), Head on Downstream of Weir (h2) & Head on Upstream of Weir (HUpstream) we can find Cross Sectional Area given Time required to Lower Liquid Surface using the formula - Cross-Sectional Area of Reservoir = (Time Interval*(2/3)*Coefficient of Discharge*sqrt(2*Acceleration due to Gravity)*Length of Weir Crest)/(2*(1/sqrt(Head on Downstream of Weir)-1/sqrt(Head on Upstream of Weir))). This formula also uses Square Root (sqrt) function(s).
What are the other ways to Calculate Cross-Sectional Area of Reservoir?
Here are the different ways to Calculate Cross-Sectional Area of Reservoir-
  • Cross-Sectional Area of Reservoir=(Time Interval*Bazins Coefficient*sqrt(2*Acceleration due to Gravity))/((1/sqrt(Head on Downstream of Weir)-1/sqrt(Head on Upstream of Weir))*2)OpenImg
  • Cross-Sectional Area of Reservoir=(Time Interval*(8/15)*Coefficient of Discharge*sqrt(2*Acceleration due to Gravity)*tan(Theta/2))/((2/3)*((1/Head on Downstream of Weir^(3/2))-(1/Head on Upstream of Weir^(3/2))))OpenImg
Can the Cross Sectional Area given Time required to Lower Liquid Surface be negative?
No, the Cross Sectional Area given Time required to Lower Liquid Surface, measured in Area cannot be negative.
Which unit is used to measure Cross Sectional Area given Time required to Lower Liquid Surface?
Cross Sectional Area given Time required to Lower Liquid Surface is usually measured using the Square Meter[m²] for Area. Square Kilometer[m²], Square Centimeter[m²], Square Millimeter[m²] are the few other units in which Cross Sectional Area given Time required to Lower Liquid Surface can be measured.
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