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V-Notch (Thomson Triangular) Weir Flow Rate Calculator

Easily calculate and compute v-notch (thomson triangular) weir flow rate calculator with accurate equations, live formulas, and expert guidance.

Apex angle of triangular notch.

Water elevation above notch vertex.

Thomson coefficient (typically 0.58 - 0.60).

Calculated Result
99.3 L/s

Discharge (Q)

Discharge (Q)

99.3 L/s

Flow Rate Liters Per Second

99.3

Flow Rate M3 Per Second

0.0993

Flow Rate Us Gpm

1574

Notch Angle Degrees

90

99.3 — L/s

Calculation Breakdown

  1. Applied FormulaModels flow rate discharge through sharp-crested V-notch (triangular) Thomson weirs with high accuracy at low volumetric flows.Q \approx 1.38 H^{2.5} \quad (\text{For 90}^\circ\text{ Notch in SI Units})

V-Notch Weir Flow Rate Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.025507499Discharge (Q)

What Is the V-Notch (Thomson Triangular) Weir Flow Rate Calculator?

This tool computes v-notch (thomson triangular) weir flow rate calculator with high precision arithmetic.

How Does the V-Notch (Thomson Triangular) Weir Flow Rate Calculator Work?

Models flow rate discharge through sharp-crested V-notch (triangular) Thomson weirs with high accuracy at low volumetric flows.

V-Notch (Thomson Triangular) Weir Flow Rate Calculator Formula & Variables

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

Q≈1.38H2.5(For 90∘ Notch in SI Units)Q \approx 1.38 H^{2.5} \quad (\text{For 90}^\circ\text{ Notch in SI Units})

Models flow rate discharge through sharp-crested V-notch (triangular) Thomson weirs with high accuracy at low volumetric flows.

How to Use the V-Notch (Thomson Triangular) Weir Flow Rate Calculator

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

Step-by-Step Example Calculation

V-Notch (Thomson Triangular) Weir Flow Rate Calculator Example

Input Values:

notchAngleDegreesTheta:90
headAboveVertexHMeters:0.35
dischargeCoefficientCd:0.58
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required L/s.

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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