Results 21 to 30 of about 174 (116)
A novel deep U-Net-LSTM framework for time-sequenced hydrodynamics prediction of the SUBOFF AFF-8
Engineering Applications of Computational Fluid Mechanics, 2022 The computational fluid dynamics (CFD) simulation method is commonly used for large-scale computational engineering problems. However, it usually leads to higher computational costs.
Yuqing Hou +5 more
doaj +1 more source
Numerical Simulation of Turbulent Wake Behind SUBOFF Model [PDF]
Journal of the Society of Naval Architects of Korea, 2010 This paper covers the numerical studies performed to investigate the characteristics of turbulent wake generated by a submarine, SUBOFF model. A SUBOFF model assumed as an axial-symmetric body was used to generate wake. The numerical simulation was performed by using a commercial S/W, FLUENT, with the same condition as the experiments by Shin et al ...
openaire +1 more source
Numerical Investigation of Self-Propulsion Performance and Noise Level of DARPA Suboff Model
Journal of Marine Science and Engineering, 2023 Propulsion noise is an enduring problem of significant military and environmental importance. Hence, it is crucial to investigate propeller noise characteristics.
Chunyu Guo +4 more
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Numerical Investigation of Effect of Arrangement of Generators on Flow over a Suboff Submrine Model
نشریه مهندسی دریا, 2019 The vortex generated around a submarine has an important influence on the uniformity of the submarine wake at the propeller and hydrodynamic noise. A suitable way to reduce the effects of this separated flow is to use vortex generators. Vortex generators
AmirHamzeh Farajollahi +2 more
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A Preconditioned Method for Rotating Flows at Arbitrary Mach Number
Modelling and Simulation in Engineering, Volume 2011, Issue 1, 2011., 2011 An improved preconditioning is proposed for viscous flow computations in rotating and nonrotating frames at arbitrary Mach numbers. The key to the current method is the use of both free stream Mach number and rotating Mach number to construct a preconditioning matrix, which is applied to the compressible governing equations written in terms of ...
Chunhua Sheng, Antonio Munjiza
wiley +1 more source
Numerical Simulations of Linearly Stratified Flow Past Submerged Bodies
Polish Maritime Research, 2018 In this study, a methodology was presented to predict density stratified flows in the near-field of submerged bodies. The energy equation in temperature form was solved coupled with momentum and mass conservation equations.
Ma Weizhuang +4 more
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Journal of Eta Maritime Science, 2023 In this study, the maneuvering forces and moments of the DARPA Suboff submarine model were determined under static drift condition using computational fluid dynamics (CFD) methods.
Hasan Öztürk +2 more
doaj +1 more source
Applied Sciences, 2020 In this study, the high-fidelity numerical methods are developed to investigate the tip vortex cavitation (TVC) inception and noise of underwater propellers, namely, Model-A and Model-B, which are designed to investigate the effects of sweep angle on ...
Garam Ku +3 more
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International Journal of Naval Architecture and Ocean Engineering, 2021 A key factor that governs the wave interferences of a submerged body is the dimensionless Froude number. Computational Fluid Dynamics (CFD) is used to describe the resistance force coefficients and the generated waves of two SUBOFF submarine models. Grid
Dong Li +4 more
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VIRTUAL SIMULATION OF PMM TESTS INDEPENDENT OF TEST PARAMETERS
Brodogradnja, 2020 The dynamic planar motion mechanism (PMM) tests are simulated numerically using computational fluid dynamics for a prolate spheroid underwater vehicle (PSUV) to find the effects of test parameters: the amplitude, frequency and flow velocity, and make the
Saeid Kheradmand +2 more
doaj +1 more source