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Constant Depression Head is the constant value of head in the well. Check FAQs
H'=Q2.303Acswlog((hdhw2),10)t
H' - Constant Depression Head?Q - Discharge in Well?Acsw - Cross-Sectional Area of Well?hd - Depression Head?hw2 - Depression Head in Well 2?t - Time?

Constant Depression Head given Discharge and Time in Hours Example

With values
With units
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Here is how the Constant Depression Head given Discharge and Time in Hours equation looks like with Values.

Here is how the Constant Depression Head given Discharge and Time in Hours equation looks like with Units.

Here is how the Constant Depression Head given Discharge and Time in Hours equation looks like.

0.0571Edit=0.99Edit2.30313Editlog((27Edit10Edit),10)4Edit
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Constant Depression Head given Discharge and Time in Hours Solution

Follow our step by step solution on how to calculate Constant Depression Head given Discharge and Time in Hours?

FIRST Step Consider the formula
H'=Q2.303Acswlog((hdhw2),10)t
Next Step Substitute values of Variables
H'=0.99m³/s2.30313log((27m10m),10)4h
Next Step Prepare to Evaluate
H'=0.992.30313log((2710),10)4
Next Step Evaluate
H'=0.0570560307982761
LAST Step Rounding Answer
H'=0.0571

Constant Depression Head given Discharge and Time in Hours Formula Elements

Variables
Functions
Constant Depression Head
Constant Depression Head is the constant value of head in the well.
Symbol: H'
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Discharge in Well
Discharge in Well is the rate of flow of a liquid in well.
Symbol: Q
Measurement: Volumetric Flow RateUnit: m³/s
Note: Value can be positive or negative.
Cross-Sectional Area of Well
Cross-Sectional Area of Well is the the surface area of the interior opening of the well.
Symbol: Acsw
Measurement: AreaUnit:
Note: Value should be greater than 0.
Depression Head
Depression Head is the difference of level of waters table and the water level in the well when pumping stopped.
Symbol: hd
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Depression Head in Well 2
Depression Head in Well 2 is depression head in the well at a time T after the pumping stopped.
Symbol: hw2
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Time
Time refers to the ongoing and continuous sequence of events that occur in succession, from the past through the present to the future.
Symbol: t
Measurement: TimeUnit: h
Note: Value should be greater than 0.
log
Logarithmic function is an inverse function to exponentiation.
Syntax: log(Base, Number)

Other Formulas to find Constant Depression Head

​Go Constant Depression Head given Discharge from Well
H'=QK

Other formulas in Constant Depending upon Base Soil category

​Go Constant Depending upon Soil at Base of Well given Specific Capacity
K=AsecSsi
​Go Constant Depending upon Soil at Base of Well
K=(Acst)log((hdhw2),e)
​Go Constant Depending upon Soil at Base of Well with Base 10
K=(Asec2.303t)log((hdhw2),10)
​Go Constant Depending upon Soil at Base of Well given Clay Soil
K=0.25Acs

How to Evaluate Constant Depression Head given Discharge and Time in Hours?

Constant Depression Head given Discharge and Time in Hours evaluator uses Constant Depression Head = Discharge in Well/((2.303*Cross-Sectional Area of Well*log((Depression Head/Depression Head in Well 2),10))/Time) to evaluate the Constant Depression Head, The Constant Depression Head given Discharge and Time in Hours formula is defined as the calculation of the value of constant depression head when we have prior information of other parameters used. Constant Depression Head is denoted by H' symbol.

How to evaluate Constant Depression Head given Discharge and Time in Hours using this online evaluator? To use this online evaluator for Constant Depression Head given Discharge and Time in Hours, enter Discharge in Well (Q), Cross-Sectional Area of Well (Acsw), Depression Head (hd), Depression Head in Well 2 (hw2) & Time (t) and hit the calculate button.

FAQs on Constant Depression Head given Discharge and Time in Hours

What is the formula to find Constant Depression Head given Discharge and Time in Hours?
The formula of Constant Depression Head given Discharge and Time in Hours is expressed as Constant Depression Head = Discharge in Well/((2.303*Cross-Sectional Area of Well*log((Depression Head/Depression Head in Well 2),10))/Time). Here is an example- 0.058209 = 0.99/((2.303*13*log((27/10),10))/14400).
How to calculate Constant Depression Head given Discharge and Time in Hours?
With Discharge in Well (Q), Cross-Sectional Area of Well (Acsw), Depression Head (hd), Depression Head in Well 2 (hw2) & Time (t) we can find Constant Depression Head given Discharge and Time in Hours using the formula - Constant Depression Head = Discharge in Well/((2.303*Cross-Sectional Area of Well*log((Depression Head/Depression Head in Well 2),10))/Time). This formula also uses Logarithmic Inverse (log) function(s).
What are the other ways to Calculate Constant Depression Head?
Here are the different ways to Calculate Constant Depression Head-
  • Constant Depression Head=Discharge in Well/ConstantOpenImg
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