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Hydrofoil Lift-to-Drag Ratio & Cavitation Inception Speed Calculator

Easily calculate and compute hydrofoil lift-to-drag ratio & cavitation inception speed calculator with accurate equations, live formulas, and expert guidance.

Total transverse foil span.

Streamwise foil chord.

Foil section operating lift coefficient.

Depth below free surface.

Parasitic profile drag coefficient.

Calculated Result
23.3

Lift-to-Drag (L/D) Ratio

Lift-to-Drag (L/D) Ratio

23.3

Lift To Drag Ratio

23.3

Total Drag Coefficient C D

0.015

Induced Drag Coefficient C Di

0.006

Cavitation Inception Speed Knots

34.6

23.3

Calculation Breakdown

  1. Applied FormulaDetermines the aerodynamic/hydrodynamic efficiency (L/D) of a submerged marine hydrofoil and calculates the critical inception speed where suction-side cavitation commences.\frac{L}{D} = \frac{C_L}{C_D}, \quad \sigma = \frac{p_\infty - p_v}{\frac{1}{2}\rho V^2} = -C_{p,min}

Hydrofoil L/D & Cavitation Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.05.8121723Lift-to-Drag (L/D) Ratio

What Is the Hydrofoil Lift-to-Drag Ratio & Cavitation Inception Speed Calculator?

This tool computes hydrofoil lift-to-drag ratio & cavitation inception speed calculator with high precision arithmetic.

How Does the Hydrofoil Lift-to-Drag Ratio & Cavitation Inception Speed Calculator Work?

Determines the aerodynamic/hydrodynamic efficiency (L/D) of a submerged marine hydrofoil and calculates the critical inception speed where suction-side cavitation commences.

Hydrofoil Lift-to-Drag Ratio & Cavitation Inception Speed Calculator Formula & Variables

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

LD=CLCD,σ=p∞−pv12ρV2=−Cp,min\frac{L}{D} = \frac{C_L}{C_D}, \quad \sigma = \frac{p_\infty - p_v}{\frac{1}{2}\rho V^2} = -C_{p,min}

Determines the aerodynamic/hydrodynamic efficiency (L/D) of a submerged marine hydrofoil and calculates the critical inception speed where suction-side cavitation commences.

How to Use the Hydrofoil Lift-to-Drag Ratio & Cavitation Inception Speed Calculator

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

Step-by-Step Example Calculation

Hydrofoil Lift-to-Drag Ratio & Cavitation Inception Speed Calculator Example

Input Values:

foilSpanM:3.2
foilChordM:0.45
liftCoefficientCL:0.35
submergenceDepthM:1.2
profileDragCoefficientCd0:0.0085
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required .

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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