Investigation on the flow around a submarine under the rudder deflection condition by using URANS and DDES methods

H Guo, G Li, L Du - Applied Ocean Research, 2023 - Elsevier
Considering the complex flow features of a submarine under the maneuvering condition and
their close relationship with the maneuverability, a numerical study is performed for the flow …

Wall-modeled large-eddy simulation of noise generated by turbulence around an appended axisymmetric body of revolution

Z Zhou, Z Xu, S Wang, G He - Journal of Hydrodynamics, 2022 - Springer
The directivity of the noise generated by turbulent flows around an underwater vehicle (the
fully appended SUBOFF body) is investigated numerically, where the turbulent flows are …

Assessment of Numerical Captive Model Tests for Underwater Vehicles: The DARPA SUB-OFF Test Case

VV Zheku, D Villa, B Piaggio, S Gaggero… - Journal of Marine …, 2023 - mdpi.com
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 …

Large-eddy simulation of flow noise from turbulent flows past an axisymmetric hull using high-order schemes

P Jiang, S Liao, B Xie - Ocean Engineering, 2024 - Elsevier
This paper presents a wall-modeled large-eddy simulation (WMLES) combined with Ffowcs–
Williams and Hawkings (FW–H) acoustic analogy to investigate turbulence and flow noise …

A cache-efficient reordering method for unstructured meshes with applications to wall-resolved large-eddy simulations

Y Liu, H Wang, S Wang, G He - Journal of Computational Physics, 2023 - Elsevier
Unstructured meshes provide a distinct advantage for handing complex geometries.
However, the low cache utilization due to mesh-related data access patterns raises …

Large-eddy simulation of tripping effects on the flow over a 6: 1 prolate spheroid at angle of attack

M Plasseraud, P Kumar, K Mahesh - Journal of Fluid Mechanics, 2023 - cambridge.org
Large-eddy simulation is used to simulate the flow around a 6: 1 prolate spheroid at. Rather,
the influence of the trip is localized, and the near-wall flow converges towards a solution …

Direct simulation of flow field around SUBOFF in grid-generated turbulence with SWLBM

C Xuesen, L Yaoyao, D Zhenxun, P Chong… - Computers & …, 2023 - Elsevier
SWLBM is a Lattice Boltzmann Method (LBM) based software designed running on Sunway
TaihuLight Supercomputer. In this paper, we introduce the simulation of flow over DARPA …

Theoretical modeling and multi-parameter influence analysis of piston wind in the ultra-high-speed elevator hoistway

Q Liu, R Zhang, J Zhang, S Sun, W Huang - Physics of Fluids, 2023 - pubs.aip.org
The high-speed airflow generated when an ultra-high-speed elevator runs in the hoistway
will cause a significant piston effect. Therefore, it is essential to study the variation law of the …

Overview of Research Progress on Numerical Simulation Methods for Turbulent Flows Around Underwater Vehicles

K He, Z Pan, W Zhao, J Wang, D Wan - Journal of Marine Science and …, 2024 - Springer
In this paper, we present an overview of numerical simulation methods for the flow around
typical underwater vehicles at high Reynolds numbers, which highlights the dominant flow …

Tripping effects on model-scale studies of flow over the DARPA SUBOFF

N Morse, K Mahesh - Journal of Fluid Mechanics, 2023 - cambridge.org
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 …