Results 31 to 40 of about 174 (116)
Tripping effects on model-scale studies of flow over the DARPA SUBOFF
Journal of Fluid Mechanics, 2023 Trip-resolved large-eddy simulations of the DARPA SUBOFF are performed to investigate the development of turbulent boundary layers (TBLs) in model-scale studies. The primary consideration of the study is the extent to which the details of tripping affect statistics in large-eddy simulations of complex geometries, which are presently limited to moderate
Nicholas Morse, Krishnan Mahesh
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ITM Web of Conferences, 2018 This paper studies radar cross section of submarine sails on the water. Under the detection of the enemy’s airborne radar, considering the motion of the submarine, the sail model of radar pitch angle incidence range analysis is established.
Liu Ji +4 more
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Analysis of resistance and flow field of submarine sailing near the ice surface
Zhongguo Jianchuan Yanjiu, 2021 ObjectivesThis paper studies the hydrodynamic performance of the submarine sailing near the ice surface using numerical simulation method.Methodsthe Suboff full-appended model, RANS method, SST k-ω turbulence model and volume of field method are used to ...
Tiechao BAI +4 more
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Hydrodynamic performance and wake study of an UUV sailing near the free surface
Frontiers in Marine ScienceIn this study, the SUBOFF UUV is numerically modelled in order to investigate the hydrodynamic features and effects of submerged navigation near the free surface.
Dapeng Zhang, Bowen Zhao, Jiyuan Sun
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Journal of Marine Science and Engineering, 2022 A thorough numerical introspection for assessing the particular issues of large flow separations around a submersible hull by using various turbulence models is described.
Adrian Lungu
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Assessment of Numerical Captive Model Tests for Underwater Vehicles: The DARPA SUB-OFF Test Case
Journal of Marine Science and Engineering, 2023 During the early design stage of an underwater vehicle, the correct assessment of its manoeuvrability is a crucial task. Conducting experimental tests still has high costs, especially when dealing with small vehicles characterized by low available budget.
Vito Vasilis Zheku +4 more
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Unsteady Skin-Friction Measurements on a Maneuvering Darpa2 Suboff Model [PDF]
, 2014 Master of ...
Roger L. Simpson, Serhat Hosder
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Similarity law research of submarine flow-induced noise
Zhongguo Jianchuan YanjiuObjectiveThis study aims to investigate the similarity laws of submarine flow-induced noise with a view to enhancing the assessment accuracy of submarine stealth performance. MethodsA flow field simulation of the SUBOFF submarine model is conducted using
Yang SONG, Pingjian MING
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The Numerical Simulation of a Submarine Based on a Dynamic Mesh Method
Journal of Marine Science and Engineering, 2022 In this paper, a new numerical model is proposed by combining the overset mesh technique and dynamic mesh method in order to simulate the straight navigation and steady turning motion of a submarine model. The RNG k-ε turbulence model is applied to close
Guanghua He +3 more
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Self-propulsion simulation of DARPA suboff [PDF]
, 2017 Hydrodynamic performance prediction of a propeller working behind a submerged body is a popular research field. For a submarine propeller, the propeller-hull interaction should be considered during the preliminary design stage. In this study, the resistance and propulsion analyses of the well-known bench-mark DARPA Suboff with E1619 propeller have been
Dogrul, A. +3 more
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