کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1725130 1520674 2016 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental and numerical study of a generic conventional submarine at 10° yaw
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی دریا (اقیانوس)
پیش نمایش صفحه اول مقاله
Experimental and numerical study of a generic conventional submarine at 10° yaw
چکیده انگلیسی
This investigation discusses the flow physics of the fully appended DSTO generic submarine model at both straight ahead conditions and during a 10° side-slip. Reynolds Averaged Navier Stokes (RANS) and Large Eddy Simulation (LES) computations have been performed and are compared with model-scale experiments. The experiments have been carried out in the DSTO Low-Speed Wind Tunnel, with data collected using pressure probes, Particle Image Velocimetry (PIV) and flow visualization using wool-tuft streamers. Computational studies using LES on unstructured meshes of up to 340 million cells provide detailed surface and off-body flow field data, complementing the experimental investigations and providing the opportunity for reciprocal validation of experiments and computations. Surface-flow patterns for the DSTO generic submarine model at 10° yaw and a freestream Reynolds (Re) number, based on wind tunnel speed and hull length, of Re=4.5×106 were obtained. The cross-stream velocity for the DSTO generic submarine model at 10° yaw and Re=2.7×106 was measured using PIV. The in-plane velocity was measured at three streamwise locations corresponding to 65%, 84% and 98% of the submarine model length. LES computations were performed using an incompressible LES flow solver developed using OpenFOAM and unstructured tetrahedral grids generated utilizing a patch-based approach to facilitate high near-wall resolutions and arbitrary refinement for appendage wakes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ocean Engineering - Volume 116, 1 April 2016, Pages 1-20
نویسندگان
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