Far Wake Modeling for Ship Maneuvering
Abstract
The study of a ship bubbly wake in the far field (typically several km from the source) is of interest to the Navy, however there are limited numerical methods to simulate this phenomenon. An initial development of an advanced solver for the far field bubbly wakeof ships maneuvering in waves will be expanded under this project with a final objective of improving flexibility, fidelity and speed of the solver. As part of the project the mixing process in the far wake will be more carefully analyzed to improve the modeling approach. The far wake solver is based on the ship Boltzmann-based polydisperse two-fluid code REX, and also uses this solver as precursor for the generation of a near field wake flow considering the ship geometry and the complex processes that generate the bubblyflow, such as bubble breakup and coalescence and turbulent air entrainment from the free surface. The far wake solver uses Cartesian grids for faster execution while maintaining unsteady Reynolds-Averaged Navier-Stokes (URANS) or large eddy simulation (LES) approach available in REX. Continued support to Naval Surface Warfare Center in Panama City, FL will be provided as they transition the existing parabolic bubbly wake solver to the new far wake solver. (Approved for Public Release)
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 24, 2023
- Source ID
- N000142312595
Entities
People
- J. Ezequiel MartÃn
Organizations
- Office of Naval Research
- United States Navy
- University of Iowa