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Showing 1 to 5 of 5 for “"Hydrodynamic derivatives"”.
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Maneuvering of slender X-fin AUVs with hydrodynamic derivatives informed through CFD
… The results from VPMM are used to determine the hydrodynamic derivatives that inform the LPM. There was some inconsistency in the VPMM data based on the frequency and amplitude that the VPMM was run. A brief study was run to look at this effect. Afterwards, Open and closed loop, autopilot …
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CFD-informed Lumped Parameter Models Result In High-Fidelity Maneuvering Predictions of AUVs
… ing characteristics of an AUV using non linear hydrodynamic derivatives obtained through static and dynamic CFD. This model shall be implemented for the craft designed for DIVE technologies, our industrial sponsor and an in-house craft, the 690. This model shall also be made generalized for most …
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Modular Dynamic Modeling and Development of Micro Autonomous Underwater Vehicle: Lancelet
… is established. The empirical methods for the hydrodynamic coefficients and added mass estimation are summarized, and the relationship between hydrodynamic coefficients and hydrodynamic derivatives is derived. A torpedo shaped micro AUV named Lancelet with a novel multi jet drive propulsion …
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Nonlinear Free Surface and Viscous Effects on Underwater Vehicle Maneuvering and Seakeeping
… accommodate depth dependent effects by updating hydrodynamic derivatives using strip theory and boundary element method analysis. This new model can predict near-surface maneuvering motions of an AUV operating in calm or wavy waters. Alternative free surface affected motion predictions are …
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Simulations of a self propelled autonomous underwater vehicle
… vehicles. It is therefore vital that the hydrodynamic forces and moments acting on a self propelled manoeuvring AUV can be predicted accurately at the initial design stage. The flow around a typical AUV is both turbulent and three dimensional with significant interactions between the hull, …