The mesh influence in fluid flow

Abstract

The principal objective of this study is to adapting the mesh of the computational fluid dynamics to obtain a good accuracy. In the past, the experimental results were a good bench-mark for predicting ship water resistance, but due to the evolution of the technol-ogy, mathematical flow patterns can be solved by applying the RANS equations. The towing test results can by apply for a low Froude number, but for a high Froude number, all phenomena that appear along the simulation aren’t relevant because the scale effects can provide a realist vision of the phenomena for a real ship (scale 1:1). Hence, this study presents methods of improving the mesh quality by making comparisons with the experimental tests, and also presents the limit of the towing test results.