Results 51 to 60 of about 101 (80)
Some of the next articles are maybe not open access.
Summary of DARPA Suboff Experimental Program Data
1998Abstract : Experimental measurements of the flow fields from an axi-symmetrical body with and without appendages were made in the Carderock Division, Naval Surface Warfare Center (CDNSWC) and Tracor Hydronautics Ship Model Basin (HSMB). These experimental data are intended to serve as the data base for the Computational Fluid Dynamics (CFD) validations
Thomas T. Huang, Han-Lieh Liu
openaire +1 more source
Fundamental CFD Study on the Hydrodynamic Performance of the DARPA SUBOFF Submarine
Volume 2: CFD and FSI, 2019Abstract This study attempts to examine the potential for computational fluid dynamics (CFD) as an estimation tool of the hydrodynamic performance of submarines. The DARPA SUBOFF model is adopted as a benchmark because of its availability of experimental data for validation.
Kenshiro Takahashi, Prasanta K. Sahoo
openaire +1 more source
Gemi ve Deniz Teknolojisi, 2022
It is known that DARPA SUBOFF submarine model does not have a horizontal stability in deep water. In this study, the horizontal stability of submarine model moving during the periscope (snorkel) position or close to the free water surface, has been determined in 3 DoF (degrees of freedom).
Furkan ÇAVDAR, Şakir BAL
openaire +1 more source
It is known that DARPA SUBOFF submarine model does not have a horizontal stability in deep water. In this study, the horizontal stability of submarine model moving during the periscope (snorkel) position or close to the free water surface, has been determined in 3 DoF (degrees of freedom).
Furkan ÇAVDAR, Şakir BAL
openaire +1 more source
Computation of Incompressible Flow Around the DARPA SUBOFF Bodies
1990Abstract : This report describes the application of the DTNS flow solvers, both axisymmetric (DTNSA) and three-dimensional (DTNS3D) versions, and the NUGGET grid generation code to the Defense Advanced Research Projects Agency (DARPA) SUBOFF bodies.
Henry J. Haussling +2 more
openaire +1 more source
A novel Bayesian deep learning method for fast wake field prediction of the DARPA SUBOFF
Applied Ocean ResearchLinsheng Xia +2 more
exaly +2 more sources
Free Surface Effect Assessment of the Flow Around the DARPA SUBOFF-5470 Submarine Using OpenFOAM
Volume 8: CFD and FSI, 2021Abstract An important parameter to submarine navigation and control is determining the hull speed relative to the surrounding sea. The object of this paper is to find possible locations for speed sensors on a submarine. The probes should be fitted to the hull areas where the water flow is free of turbulence structures, vortices, or ...
María T. Quintuña, Rubén J. Paredes
openaire +1 more source
Tip Vortex Comparison of a DARPA Suboff AUV Propeller: Experimental and Numerical Methods
2020In a joint project of the Brazilian Navy (CTMSP) and the Institute for Technological Research (IPT), the propeller of a DARPA Suboff based AUV was designed applying lifting line theory and manufactured. This paper presents the comparison of propeller tip vortex properties obtained on cavitation tunnel tests and numerical simulations, both in open water
Hélio Corrêa da Silva Junior +7 more
openaire +1 more source
2D axisymmetric and 3D CFD simulations of flow over the benchmark DARPA SUBOFF submarine model
2023### What is it about?*Turbulent flow is fundamentally three-dimensional (3D), but two-dimensional (2D) axisymmetric computational fluid dynamics (CFD) models of axial viscous flow over streamlined axisymmetric bodies yield quick results that are approximate but very useful for preliminary studies.
H. Rahul Krishna +2 more
openaire +1 more source
Assessment of the Academic CFD Code Galatea-I With the DARPA SUBOFF Test Case
Volume 1: Advances in Aerospace Technology, 2015In this study an academic CFD code, named Galatea-I, is presented, capable for simulating inviscid, viscous laminar and viscous turbulent incompressible fluid flows. It employs the RANS (Reynolds-Averaged Navier-Stokes) approach along with the SST (Shear Stress Transport) turbulence model to predict turbulent flow phenomena, such as recirculations and ...
Sotirios S. Sarakinos +2 more
openaire +1 more source
Viscous-flow calculations for bare hull DARPA SUBOFF submarine at incidence
International Shipbuilding Progress, 2008As part of a multi-nation study regarding CFD validation, conducted by the Submarine Hydrodynamics Working Group, viscous-flow calculations on the unappended hull-form of the DARPA SUBOFF sailing straight ahead and at oblique motion were conducted in order to verify the accuracy of the predictions.
openaire +1 more source