Application of Chimera Composite Grid Scheme to Ship Appendages
Abstract
Modern computer hardware and software have made it possible to use computational fluid dynamics to determine the flow field around a bare hull ship. However, typical grid generation techniques and flow solution codes do not lend themselves well to applications involving hull appendages. A considerable amount of time and effort is required to model appended hull forms, and changes in appendage shape and/or configuration often require entirely new grids. The chimera scheme of grid generation uses a system of relatively simple grids. The grids each define a particular component of the overall geometry, making the initial grid generation much simpler. The individual grids overlap and, once combined, cover the entire computational domain. Changes in geometry or configuration force modifications to one or a small number of individual grids, leaving the other individual grids untouched. For fully appended ships, these features allow computational grids to be generated quickly and easily.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1995
- Accession Number
- ADA400727
Entities
People
- Cheng-wen Lin
- Eugene H. Gotimer
- Scott Percival
Organizations
- Naval Surface Warfare Center Carderock Division