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[mesh manipulation] HELP!!!mass properties of DynamicMeshDict for 6dof for a boat with passenger |
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March 16, 2021, 08:24 |
HELP!!!mass properties of DynamicMeshDict for 6dof for a boat with passenger
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Member
Deutschland
Join Date: Sep 2020
Posts: 69
Rep Power: 5 |
Hey,
I have following data: displacement 77kg (65 passenger+12 kayak boat) draft T=115.5mm LCG=2512mm trim 0deg V=4.5, 5.5m/s I have doubts regarding mass properties. 1. Moment of inertia: I am assuming that the 65 kg is acting at the center of gravity. If so the moment of inertia does not consider the moment of inertia of the point mass of 65 kg. It will be the moment of inertia for just the boat. AM I right? 2. Mass: In this link https://openfoamwiki.net/index.php/P...dyMotionCoeffs it says " mass applies to the entire Body". So what is the mass to be used here in my case???? Mass of boat or sum of both the masses Thank you in advance |
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