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Parshall Flume Free-Flow Open Channel Water Discharge Rate Calculator

Easily calculate and compute parshall flume free-flow open channel water discharge rate calculator with accurate equations, live formulas, and expert guidance.

Standard widths: 3", 6", 9", 12" (1 ft), 24" (2 ft), 36" (3 ft).

Water level measured at 2/3 convergence section.

Calculated Result
572.7 m³/h

Discharge

Discharge

572.7 m³/h

Discharge Flow Rate M3 Per Hour

572.7

Discharge Flow Rate Gpm

2521

Discharge Flow Rate Cfs

5.62

Discharge Liters Per Sec

159.1

572.7 — m³/h

Calculation Breakdown

  1. Applied FormulaCalculates the volumetric water flow rate (m³/h, GPM, and cfs) through calibrated Parshall flumes used in municipal wastewater treatment plants and irrigation canals.Q = 4 W H_a^{1.522 W^{0.026}} \quad (\text{cfs, feet})

Parshall Flume Discharge Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.0143286430573Discharge

What Is the Parshall Flume Free-Flow Open Channel Water Discharge Rate Calculator?

This tool computes parshall flume free-flow open channel water discharge rate calculator with high precision arithmetic.

How Does the Parshall Flume Free-Flow Open Channel Water Discharge Rate Calculator Work?

Calculates the volumetric water flow rate (m³/h, GPM, and cfs) through calibrated Parshall flumes used in municipal wastewater treatment plants and irrigation canals.

Parshall Flume Free-Flow Open Channel Water Discharge Rate Calculator Formula & Variables

The core mathematical equation utilized by this calculator is expressed as:

Q=4WHa1.522W0.026(cfs, feet)Q = 4 W H_a^{1.522 W^{0.026}} \quad (\text{cfs, feet})

Calculates the volumetric water flow rate (m³/h, GPM, and cfs) through calibrated Parshall flumes used in municipal wastewater treatment plants and irrigation canals.

How to Use the Parshall Flume Free-Flow Open Channel Water Discharge Rate Calculator

  1. Enter your parameters into the designated input fields to calculate the result immediately.

Step-by-Step Example Calculation

Parshall Flume Free-Flow Open Channel Water Discharge Rate Calculator Example

Input Values:

throatWidthInches:12
upstreamHeadHaFeet:1.25
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required m³/h.

Factors That Affect the Result

  • Measurement tolerances, operational variance, and real-world conditions.

When Should You Use This Calculator?

  • Everyday budgeting, technical homework, professional estimation, and household projects.

Assumptions & Limitations

  • Assumes standard atmospheric or environmental parameters unless specified.

Frequently Asked Questions

Calculation Accuracy & Reference Note

Double-precision IEEE 754 arithmetic with validated empirical constants.

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