Skip to main content

Morison Equation Offshore Cylinder Wave Drag & Inertia Force Calculator

Easily calculate and compute morison equation offshore cylinder wave drag & inertia force calculator with accurate equations, live formulas, and expert guidance.

Orbital velocity from linear wave theory.

Orbital acceleration.

Jacket leg or monopile diameter.

Smooth cylinder C_D ≈ 0.65; bio-fouled cylinder C_D ≈ 1.05 to 1.20.

Theoretical potential flow circular cylinder C_M = 2.0.

Calculated Result
8.2 kN/m

Peak Force

Peak Force

8.2 kN/m

Peak Total Force Kn Per Meter

8.2

Drag Force Component Kn Per M

5.8

Inertia Force Component Kn Per M

5.8

Governing Regime

Drag-significant regime (Small slender pile / strong shallow wave)

8.2 — kN/m

Calculation Breakdown

  1. Applied FormulaCalculates the hydrodynamic drag and inertia wave forces per unit length acting on offshore slender cylinders (monopiles, jacket legs) using the Morison equation.dF = \frac{1}{2} C_D \rho D u |u| + C_M \rho \frac{\pi D^2}{4} \frac{du}{dt}

Morison Wave Force Pile Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.02.04.16.18.2Peak Force

What Is the Morison Equation Offshore Cylinder Wave Drag & Inertia Force Calculator?

This tool computes morison equation offshore cylinder wave drag & inertia force calculator with high precision arithmetic.

How Does the Morison Equation Offshore Cylinder Wave Drag & Inertia Force Calculator Work?

Calculates the hydrodynamic drag and inertia wave forces per unit length acting on offshore slender cylinders (monopiles, jacket legs) using the Morison equation.

Morison Equation Offshore Cylinder Wave Drag & Inertia Force Calculator Formula & Variables

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

dF=12CDρDu∣u∣+CMρπD24dudtdF = \frac{1}{2} C_D \rho D u |u| + C_M \rho \frac{\pi D^2}{4} \frac{du}{dt}

Calculates the hydrodynamic drag and inertia wave forces per unit length acting on offshore slender cylinders (monopiles, jacket legs) using the Morison equation.

How to Use the Morison Equation Offshore Cylinder Wave Drag & Inertia Force Calculator

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

Step-by-Step Example Calculation

Morison Equation Offshore Cylinder Wave Drag & Inertia Force Calculator Example

Input Values:

waterWaveVelocityMPerSec:3
waterWaveAccelerationMPerSec2:2.5
pileOuterDiameterMeters:1.2
dragCoefficientCd:1.05
inertiaCoefficientCm:2
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required kN/m.

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.

\n

Explore more tools and calculators in Physics Calculators