Fuller's formula for Maximum Flood Discharge Formula

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Maximum 24-hour Flood Peak Discharge refers to the release of excess water downstream from a high-head dam project in 24 hours. Check FAQs
QTp=CfA0.8(1+0.8log10(Tr))
QTp - Maximum 24-hour Flood Peak Discharge?Cf - Fuller's Coefficient?A - Catchment Area?Tr - Return Period?

Fuller's formula for Maximum Flood Discharge Example

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Here is how the Fuller's formula for Maximum Flood Discharge equation looks like with Values.

Here is how the Fuller's formula for Maximum Flood Discharge equation looks like with Units.

Here is how the Fuller's formula for Maximum Flood Discharge equation looks like.

95.3071Edit=1.8Edit40.5Edit0.8(1+0.8log10(150Edit))
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Fuller's formula for Maximum Flood Discharge Solution

Follow our step by step solution on how to calculate Fuller's formula for Maximum Flood Discharge?

FIRST Step Consider the formula
QTp=CfA0.8(1+0.8log10(Tr))
Next Step Substitute values of Variables
QTp=1.840.5km²0.8(1+0.8log10(150))
Next Step Prepare to Evaluate
QTp=1.840.50.8(1+0.8log10(150))
Next Step Evaluate
QTp=95.3071400450511m³/s
LAST Step Rounding Answer
QTp=95.3071m³/s

Fuller's formula for Maximum Flood Discharge Formula Elements

Variables
Functions
Maximum 24-hour Flood Peak Discharge
Maximum 24-hour Flood Peak Discharge refers to the release of excess water downstream from a high-head dam project in 24 hours.
Symbol: QTp
Measurement: Volumetric Flow RateUnit: m³/s
Note: Value should be greater than 0.
Fuller's Coefficient
Fuller's Coefficient used in Fuller's formula (1914) with values ranging between 0.18 to 1.88 to find out the maximum 24-hour flood peak discharge.
Symbol: Cf
Measurement: NAUnit: Unitless
Note: Value should be between 0.88 to 1.88.
Catchment Area
Catchment Area for an empirical estimation is in square kilometers to where all water flows to a single stream, river, lake or even ocean.
Symbol: A
Measurement: AreaUnit: km²
Note: Value should be greater than 0.
Return Period
Return Period [Years] is an average time or an estimated average time between events such as earthquakes, floods, landslides, or a river discharge flows to occur.
Symbol: Tr
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
log10
The common logarithm, also known as the base-10 logarithm or the decimal logarithm, is a mathematical function that is the inverse of the exponential function.
Syntax: log10(Number)

Other formulas in Other Formulae category

​Go Baird and McIllwraith (1951) Formula for Maximum Flood Discharge
Qmp=3025A(278+A)0.78
​Go Jarvis Formula for Peak Discharge
Qmp=CJA

How to Evaluate Fuller's formula for Maximum Flood Discharge?

Fuller's formula for Maximum Flood Discharge evaluator uses Maximum 24-hour Flood Peak Discharge = Fuller's Coefficient*Catchment Area^0.8*(1+0.8*log10(Return Period)) to evaluate the Maximum 24-hour Flood Peak Discharge, The Fuller's formula for Maximum Flood Discharge formula is defined as the empirical formulae which relate the peak discharge to the basin area and also include the flood frequency. Maximum 24-hour Flood Peak Discharge is denoted by QTp symbol.

How to evaluate Fuller's formula for Maximum Flood Discharge using this online evaluator? To use this online evaluator for Fuller's formula for Maximum Flood Discharge, enter Fuller's Coefficient (Cf), Catchment Area (A) & Return Period (Tr) and hit the calculate button.

FAQs on Fuller's formula for Maximum Flood Discharge

What is the formula to find Fuller's formula for Maximum Flood Discharge?
The formula of Fuller's formula for Maximum Flood Discharge is expressed as Maximum 24-hour Flood Peak Discharge = Fuller's Coefficient*Catchment Area^0.8*(1+0.8*log10(Return Period)). Here is an example- 95.30714 = 1.8*40500000^0.8*(1+0.8*log10(150)).
How to calculate Fuller's formula for Maximum Flood Discharge?
With Fuller's Coefficient (Cf), Catchment Area (A) & Return Period (Tr) we can find Fuller's formula for Maximum Flood Discharge using the formula - Maximum 24-hour Flood Peak Discharge = Fuller's Coefficient*Catchment Area^0.8*(1+0.8*log10(Return Period)). This formula also uses Common Logarithm Function function(s).
Can the Fuller's formula for Maximum Flood Discharge be negative?
No, the Fuller's formula for Maximum Flood Discharge, measured in Volumetric Flow Rate cannot be negative.
Which unit is used to measure Fuller's formula for Maximum Flood Discharge?
Fuller's formula for Maximum Flood Discharge is usually measured using the Cubic Meter per Second[m³/s] for Volumetric Flow Rate. Cubic Meter per Day[m³/s], Cubic Meter per Hour[m³/s], Cubic Meter per Minute[m³/s] are the few other units in which Fuller's formula for Maximum Flood Discharge can be measured.
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