Numerical Investigation of the Resistance of a Zero-Emission Full-Scale Fast Catamaran in Shallow Water

This paper numerically investigates the resistance at full-scale of a zero-emission, high-speed catamaran in both deep and shallow water, with Froude number ranging from 0.2 to 0.8. The numerical methods are validated by two means: (a) Comparison available model tests; (b) blind validation using different flow solvers. resistance, sinkage, trim catamaran, as well wave pattern, longitudinal cuts crossflow fields, examined. total curve water shows continuous increase number, while hump is witnessed near critical speed. difference mainly caused pressure component which significantly affected interaction between systems created demihulls. maximised around 0.58, whereas peak achieved speed (Froude ≈ 0.3). Insight into underlying physics obtained analysing creation Profoundly patterns within inner region observed water. Specifically, crests troughs generated moved astern number. maximum accomplished when secondary trough stern, leading largest angle. In contrast, generates normal advance direction elevates bow creates highest angle, resistance. Moreover, significant elevations demihulls supercritical speeds may affect decision for location wet deck.