Simulation of speedboat in Ansys Fluent

Simulation of speedboat

A speedboat is a boat which is powered by an engine. Some motorboats are fitted with inboard engines, others have an outboard motor installed on the rear, containing the internal combustion engine, the gearbox and the propeller in one portable unit. An inboard-outboard contains a hybrid of a power plant and an outboard, where the internal combustion engine is installed inside the boat, and the gearbox and propeller are outside.

There are two configurations of an inboard, V-drive, and direct drive. A direct drive has the powerplant mounted near the middle of the boat with the propeller shaft straight out the back, where a V-drive has the powerplant mounted in the back of the boat facing backward having the shaft go towards the front of the boat then making a V towards the rear.

This tutorial is about simulating sinkage & trim for planning boat hulls.

You will also learn how to do the following through this tutorial:

This workshop describes how to perform a transient 2DOF simulation of a planing speed boat in ANSYS Fluent

  •   How to drag
  •   Trim angle and sinkage(water level on the hull)
  •   Open channel VOF (Volume of Fluid)
  •    Fluent’s 6DOF solver, solves the rigid body motion of the hull
  •    Moving Deforming Mesh (MDM), deforms the mesh to allow motion of the boat

Problem description

A generic boat hull was used. This boat hull was created for demonstration purposes and is not a real/commercial hull.

Symmetry plane defined at y=0

Boat length = 5m

Weight = 500kg (250kg for half boat)

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