scholarly journals A Lagrangian nodal integration method for free-surface fluid flows

2020 ◽  
Vol 361 ◽  
pp. 112816 ◽  
Author(s):  
Alessandro Franci ◽  
Massimiliano Cremonesi ◽  
Umberto Perego ◽  
Eugenio Oñate
Keyword(s):  
Free Surface ◽  
Integration Method ◽  
Fluid Flows ◽  
Nodal Integration

An implicit scheme for simulation of free surface non-Newtonian fluid flows on dynamically adapted grids

2021 ◽  
Vol 36 (3) ◽  
pp. 165-176
Author(s):  
Kirill Nikitin ◽  
Yuri Vassilevski ◽  
Ruslan Yanbarisov
Keyword(s):  
Free Surface ◽  
Numerical Model ◽  
Newtonian Fluid ◽  
Viscoelastic Fluid ◽  
Fluid Flows ◽  
Numerical Results ◽  
Implicit Scheme ◽  
New Approach

Abstract This work presents a new approach to modelling of free surface non-Newtonian (viscoplastic or viscoelastic) fluid flows on dynamically adapted octree grids. The numerical model is based on the implicit formulation and the staggered location of governing variables. We verify our model by comparing simulations with experimental and numerical results known from the literature.

Numerical Simulation of Vortex Shedding From a Circular Cylinder in the Presence of a Free Surface

2003 ◽  
Author(s):  
S. Nagaya ◽  
R. E. Baddour
Keyword(s):  
Numerical Simulation ◽  
Reynolds Number ◽  
Free Surface ◽  
Circular Cylinder ◽  
Vortex Shedding ◽  
Fluid Flows ◽  
Reynolds Numbers ◽  
Cfd Simulations ◽  
Induced Drag

CFD simulations of crossflows around a 2-D circular cylinder and the resulting vortex shedding from the cylinder are conducted in the present study. The capability of the CFD solver for vortex shedding simulation from a circular cylinder is validated in terms of the induced drag and lifting forces and associated Strouhal numbers computations. The validations are done for uniform horizontal fluid flows at various Reynolds numbers in the range 103 to 5×105. Crossflows around the circular cylinder beneath a free surface are also simulated in order to investigate the characteristics of the interaction between vortex shedding and a free surface at Reynolds number 5×105. The influence of the presence of the free surface on the vortex shedding due to the cylinder is discussed.

Control of instabilities in non-Newtonian free surface fluid flows

2013 ◽  
Vol 35 (3) ◽  
pp. 217-229 ◽  
Author(s):  
Geraldo de Freitas Maciel ◽  
Fabiana de Oliveira Ferreira ◽  
Guilherme Henrique Fiorot
Keyword(s):  
Free Surface ◽  
Fluid Flows

SPH–DCDEM model for arbitrary geometries in free surface solid–fluid flows

2016 ◽  
Vol 202 ◽  
pp. 131-140 ◽  
Author(s):  
Ricardo B. Canelas ◽  
Alejandro J.C. Crespo ◽  
Jose M. Domínguez ◽  
Rui M.L. Ferreira ◽  
Moncho Gómez-Gesteira
Keyword(s):  
Free Surface ◽  
Fluid Flows ◽  
Arbitrary Geometries

J-integral evaluation for 2D mixed-mode crack problems employing a meshfree stabilized conforming nodal integration method

2016 ◽  
Vol 58 (2) ◽  
pp. 185-198 ◽  
Author(s):  
Satoyuki Tanaka ◽  
Hirotaka Suzuki ◽  
Shota Sadamoto ◽  
Shogo Sannomaru ◽  
Tiantang Yu ◽  
...  
Keyword(s):  
Mixed Mode ◽  
Integration Method ◽  
J Integral ◽  
Integral Evaluation ◽  
Nodal Integration ◽  
Mixed Mode Crack ◽  
Crack Problems ◽  
Stabilized Conforming Nodal Integration
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