Numerical Modeling of the Stepped Planing Hull in Calm Water
Publish Year: 1394
نوع سند: مقاله ژورنالی
زبان: English
View: 422
This Paper With 10 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_IJE-29-2_013
تاریخ نمایه سازی: 12 دی 1395
Abstract:
This article describes a 3D CFD (computational fluid dynamics) simulation implementation of the stepped planing hull in calm water. The turbulent free surface flow around the stepped planing hull is computed with a RANSE method, using the solver ANSYS-CFX. The turbulence model used is standard k–ε. In order to simulate the disturbed free surface, volume of fluid (VOF) model is implemented. The CFD model has been firstly validated using the available experimental data. The numerical results of drag, pressure distribution, wetted surface, water spray, wake profile and wave generated by the planing hull are presented and discussed at various speeds. Wake profiles calculated from present model are also compared with the ones calculated from Savitsky’s emprical equations at different speeds.
Keywords:
Stepped HullTurbulentFree Surface FlowVolume of Fluid ModelDragWake Profile
Authors
M Bakhtiari
Department of Maritime Engineering, Amirkabir University of Technology, Tehran, Iran
S Veysi
Department of Maritime Engineering, Amirkabir University of Technology, Tehran, Iran
H Ghassemi
Department of Maritime Engineering, Amirkabir University of Technology, Tehran, Iran