Sentry Underway Data for Cruise AT37-13, Sentry Dives 429-441

This Sentry Data package published by the Woods Hole Oceanographic Institution. The Data files are currently hosted by the National Deep Submergence Facility. Access the full data package here: https://dlacruisedata.whoi.edu/NDSF/Sentry/cruise/AT37-13/ Underway Cruise Data from R2R: https://www.rvdata.us/search/cruise/AT37-13 Cruise Details from WHOI Data Library: https://www.dla.whoi.edu/cruise-details/AT37-13This package is the complete data package prepared by the Sentry team while at sea. Some parts of the data package will be available in other locations. We will update the metadata to include references to these data as they are available. This package contains data from Sentry Dives 429-441. These dives were done as part of AT37-13, aboard the R/V Atlantis in 2017. More information about AT37-13 is available from the Rolling Deck to Repository (R2R) and the WHOI Data Library. The DOI for this cruise is 10.7284/907684. Copyright for all video and photographic material created by the NDSF vehicles is held by the Woods Hole Oceanographic Institution. Please contact [email protected] for information about publishing and copyright of images and video from this community

A summary of engineering properties, sediment size, and composition analyses of cores from the continental borderland near San Clemente Island : October 1966-December 1966 /

Mode of access: Internet

The use of computational fluid dynamics to aid cost-effective hydrodynamic design of autonomous underwater vehicles

The missions being proposed for autonomous underwater vehicles (AUVs), by both marine scientists and industry, are becoming increasingly complex and challenging. In order to meet these demands the next generation of AUVs will need to be faster, to operate for longer durations, and to be more manoeuvrable than existing 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. In order to achieve this, the use of a computational-fluid-dynamics-based analysis is suggested. The approaches developed are predominantly steady state and suitable for running on a workstation personal computer using a commercial software licence. It is estimated that the proposed simulations would take a competent user less than 1 month for a new concept design. The total cost of these simulations is significantly lower than the cost of building a model and having it commercially tested to capture the same level of detail for the resistance, propulsion, and manoeuvring performance. Based on the validation studies presented, it is estimated that on a 2×106 element structured mesh a competent user should be able to predict hydrodynamic forces to within at least 10 per cent and moments to within 20 per cent of in-service performance