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Contemporary Ideas on Ship StabilityTEMPEST—A New Computationally Efficient Dynamic Stability Prediction Tool

Contemporary Ideas on Ship Stability: TEMPEST—A New Computationally Efficient Dynamic Stability... [The US Navy has embarked upon the development of a new computational tool for simulating the responses of a ship operating in severe sea states. This new tool, TEMPEST, is designed to be computationally efficient to support real-time training simulators as well as high-resolution evaluation of surface-ship, dynamic-stability performance across a wide range of possible environmental conditions. TEMPEST aims to improve the state-of-the-art for real-time computations through the inclusion of nonlinear (body-exact) hydrodynamic perturbation forces and physics-based, viscosity-influenced lift and cross-flow drag forces. Slender-ship and low-aspect-ratio lifting-surface theories provide the ability to maintain computational efficiency while including the dominant nonlinearities within the dynamic stability problem. This paper argues for the efficacy of TEMPEST’s theory in reconciling the need for accurate predictions with computational efficiency. ] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

Contemporary Ideas on Ship StabilityTEMPEST—A New Computationally Efficient Dynamic Stability Prediction Tool

Part of the Fluid Mechanics and Its Applications Book Series (volume 119)
Editors: Belenky, Vadim L.; Spyrou, Kostas J.; van Walree, Frans; Almeida Santos Neves, Marcelo; Umeda, Naoya
Belknap, William F.; Reed, Arthur M.
Contemporary Ideas on Ship Stability — Jan 2, 2019
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Publisher
Springer International Publishing
Copyright
© Springer Nature Switzerland AG 2019
ISBN
978-3-030-00514-6
Pages
3 –21
DOI
10.1007/978-3-030-00516-0_1
Publisher site
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Abstract

[The US Navy has embarked upon the development of a new computational tool for simulating the responses of a ship operating in severe sea states. This new tool, TEMPEST, is designed to be computationally efficient to support real-time training simulators as well as high-resolution evaluation of surface-ship, dynamic-stability performance across a wide range of possible environmental conditions. TEMPEST aims to improve the state-of-the-art for real-time computations through the inclusion of nonlinear (body-exact) hydrodynamic perturbation forces and physics-based, viscosity-influenced lift and cross-flow drag forces. Slender-ship and low-aspect-ratio lifting-surface theories provide the ability to maintain computational efficiency while including the dominant nonlinearities within the dynamic stability problem. This paper argues for the efficacy of TEMPEST’s theory in reconciling the need for accurate predictions with computational efficiency. ]

Published: Jan 2, 2019

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