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Marine Propeller Cavitation Number & Burrill Blade Loading Calculator

Easily calculate and compute marine propeller cavitation number & burrill blade loading calculator with accurate equations, live formulas, and expert guidance.

Water depth above propeller shaft centerline.

Inflow water speed.

Revolutions per minute.

Screw diameter.

Total propeller thrust.

Calculated Result
0.41

Cavitation Number (σ₀.₇)

Cavitation Number (σ₀.₇)

0.41

Cavitation Number Sigma07 R

0.41

Resultant Section Speed07 R M Per S

28.7

Static Pressure K Pa

174.7

Burrill Allowable Loading K Pa

83.2

0.41

Calculation Breakdown

  1. Applied FormulaCalculates the cavitation index at 0.7R blade radius and checks the Burrill blade loading limit to prevent blade erosion, thrust breakdown, and underwater hull noise.\tau_c = \frac{T}{A_P \cdot q_{0.7R}} \le f(\sigma_{0.7R}) \quad [\text{Burrill Criterion}]

Propeller Cavitation Burrill Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.00.30.50.81.0Cavitation Number (σ₀.₇)

What Is the Marine Propeller Cavitation Number & Burrill Blade Loading Calculator?

This tool computes marine propeller cavitation number & burrill blade loading calculator with high precision arithmetic.

How Does the Marine Propeller Cavitation Number & Burrill Blade Loading Calculator Work?

Calculates the cavitation index at 0.7R blade radius and checks the Burrill blade loading limit to prevent blade erosion, thrust breakdown, and underwater hull noise.

Marine Propeller Cavitation Number & Burrill Blade Loading Calculator Formula & Variables

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

τc=TAP⋅q0.7R≤f(σ0.7R)[Burrill Criterion]\tau_c = \frac{T}{A_P \cdot q_{0.7R}} \le f(\sigma_{0.7R}) \quad [\text{Burrill Criterion}]

Calculates the cavitation index at 0.7R blade radius and checks the Burrill blade loading limit to prevent blade erosion, thrust breakdown, and underwater hull noise.

How to Use the Marine Propeller Cavitation Number & Burrill Blade Loading Calculator

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

Step-by-Step Example Calculation

Marine Propeller Cavitation Number & Burrill Blade Loading Calculator Example

Input Values:

submergenceDepthShaftCenterM:5.2
speedOfAdvanceVaKnots:16.0
propellerRpm:125.0
propellerDiameterM:6.0
thrustKN:620.0
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required Cavitation Number (σ₀.₇).

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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