Los Angeles - Long Beach Harbor Complex 2020 Plan Harbor Resonance Analysis: Numerical Model Investigation
Abstract
A numerical harbor resonance model of the Los Angeles/Long Beach Harbor Complex was used to study harbor oscillations in the 60- to 400-sec period range. Four finite element grids were digitized representing existing conditions and two Phase 2 and Phase 1 layouts from the 2020 Plan. The hybrid finite element numerical model HARBD, which includes terms for bottom friction and boundary absorption, was used in this study. Mean boundary amplification response factors were obtained for 30 basins representing existing and proposed areas of interest. It was concluded that the Phase 2 Scheme A layout had the lowest response, followed by the Phase 2 Scheme B response, and that Phase 1 Scheme B had the highest response. Neither of the Phase 2 layouts was considered to have response factors significantly above the other to consider excluding either plan based solely on 60- to 400-sec response. For the Port of Los Angeles, both Phase 2 plans produced nearly identical responses. The areas producing the highest responses were East Channel and 2020 Southern Slip for Los Angeles, and the Pier J Extension and 2020 Slip for Long Beach. Keywords: Harbor resonance models; Long wave oscillations; Hydrodynamics; Los Angeles California; Long Beach (Calif.); Numerical models; Ship motion. (edc)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1979
- Accession Number
- ADA215209
Entities
People
- Francis E. Sargent
Organizations
- Coastal Engineering Research Center