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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Resolvent problem for linearized compressible Navier-Stokes equations with free surface
自由曲面 线性可压缩 纳维-斯托克斯方程 解问题
2023/4/28
In this talk, we will discuss the resolvent problem for the linearized one of the free surface problem of compressible, viscous and heat-conducting fluid, which is a problem in an infinite strip domai...
Design of free-surface interfaces using RANS equations
Design free-surface interfaces RANS equations
2015/7/3
In this paper, the continuous adjoint methodology to compute shape sensitivities in free-surface hydrodynamic design problems (RANS governing systems) has been developed.
Shape Sensitivity of Free-Surface Interfaces Using a Level Set Methodology
Shape Sensitivity Free-Surface Interfaces Level Set Methodology
2015/7/3
In this paper we develop the continuous adjoint methodology to compute shape sensitivi ties in free-surface hydrodynamic design problems using the incompressible Euler equations and the level set meth...
A boundary element method for the simulation of non-spherical bubbles and their interactions near a free surface
boundary element method singularities solid angle bubble jetting
2012/2/24
The basic principle and numerical technique for simulating two three-dimensional bubbles near a free surface are studied in detail by using boundary element method. The singularities of influence coef...
Validation of a CIP-based tank for numerical simulation of free surface flows
CIP method THINC scheme Free surface flow Wave breaking Wave tank
2012/2/28
A constrained interpolation profile CIP-based numerical tank is developed to simulate violent free surface flows. The numerical simulation is performed by the CIP-based Cartesian grid method, which is...
Total Volume Conservation in Simulation of Unsteady Free-Surface Flows
Free-surface flow Unsteady flow Dam-break Sloshing tank Finite volume method
2009/10/9
Free surface tracking methods used in the numerical simulation of unsteady free surface flows may introduce sources or sinks resulting in changes in total fluid volume in the computational domain. A c...
On the Characteristics of an Absorbing Wavemaker with a Cross Section Having a Plumb Part near the Free Surface
Absorbing Wavemaker Active Wave Absorption FIR Digital Filter Absorption Efficiency Cross Section with a Plumb Part near the Free Surface Wave Reflection
2009/5/18
The characteristics of a plunger absorbing wavemaker are studied. In the present wave absorption system the wavemaker is controlled to absorb the incoming waves by means of digital filtering of wave e...
Free Surface Potential Flow around Multi-Hulls in Shallow Water Using a Potential Based Panel Method
Wave Making Resistance Lifting Body Shallow Water Free Surface Boundary Element Method Sinkage and Trim
2009/5/18
The present paper investigates the shallow water effect on the hydrodynamic characteristics of lifting body such as wave resistance, sinkage and trim using a potential based boundary element method. T...
Wave Making Resistance of Ships in Shallow Water Based on Second Order Free Surface Condition with Sinkage and Trim Effects
Resistance Boundary Element Method Shallow Water Morino Perturbation Method Free-Surface Flow
2009/5/12
The problem of free surface potential flow around a ship in shallow water is subjected to linearized form of free surface condition and kinematic conditions on the body and bottom surface. The solutio...
Development and Demonstration of CAD/CFD/Optimizer Integrated Simulation-Based Design Framework by Using High-Fidelity Viscous Free-Surface RaNS Equation Solver
CAD/CFD/Optimizer Integrated Simulation-Based Design Framework High-Fidelity Viscous Free-Surface RaNS Equation Solver
2009/4/23
This paper, for the first time, describes development and demonstration of a CAD/CFD/optimizer-integrated simulation-based design (SBD) framework by introducing an advanced CAD system direct control a...
On a Computing Method for Nonlinear Free Surface Flow Causing Spray Ejection
Computing Method Nonlinear Free Surface Flow Spray Ejection
2009/4/2
On the numerical simulation using the BEM, the computational disadvantage by dealing with the particular fluid domain due to the jet flow is discussed and the adaptive schemes for robust time-donain c...
On the Effect of Measuring Section in Circulating Water Channel to Free Surface Elevation
hydrodynamic circulating water channel
2009/3/27
The hydrodynamic effect due to side form of measuring section of circulating water channel is examined theoretically and experimentally.
Cutting stability investigation on a complicated free surface machining
Five-axis machining Frequency response Vibration modes
2010/1/19
Purpose: Both the results obtained previously relating to structure dynamics of a simultaneous five-axis
movement machine tool and to the investigations on dynamic cutting behavior are further applie...
A NEW MESH RE-GENERATION METHOD FOR FREE SURFACE FLOW ANALYSIS BASED ON INTERFACE-TRACKING METHOD
mesh re-generation technique free surface flow interface-tracking method
2008/12/23
This paper presents a new mesh re-generation technique for free surface flow analysis based on the interface-tracking method. The incompressible Navier-Stokes equation based on the arbitrary Lagrangi...
A numerical study on the free-surface channel flow over a bottom obstacle
open channel flow undular hydraulic jump
2010/3/11
This paper presents the results of a numerical study on a two-dimensional freesurface channel flow over a bottom obstacle. Of main interest is the capability of commercial CFD codes to solve such prob...