UNDERSTANDING THE PHYSICS OF TRIM
Presentation: Understanding the physics of trim - FORCE Technology
Presentation: Understanding the physics of trim - FORCE Technology
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ConclusionsAround 80% of the change in propulsive power origins in changedresidual resistance coefficient. Primarily from changed flow around thebulbous bowRemaining 20% are from changes in the propulsive coefficients.Trim guidance from resistance model tests or alternatively RANS CFDcan give a reasonable result. Especially if it is combined withexperience from self-propulsion tests.The potential theory CFD was found to under predict the change inperformance when trimming.
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