Direct Numerical Simulation of Relaminarization in Three-dimensional Poiseuille Flow

2004 ◽  
Vol 2004.53 (0) ◽  
pp. 325-326
Author(s):  
Yoshito TANAKA ◽  
Noritaka AOTA ◽  
Masato YOSHINO ◽  
Masaharu MATSUBARA ◽  
Atsushi SASAKI ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Direct Numerical Simulation ◽  
Poiseuille Flow ◽  
Three Dimensional

Direct numerical simulation of a turbulent Couette-Poiseuille flow with a rod-roughened wall

2018 ◽  
Vol 30 (10) ◽  
pp. 105101 ◽  
Author(s):  
Young Mo Lee ◽  
Jung Hoon Kim ◽  
Jae Hwa Lee
Keyword(s):  
Numerical Simulation ◽  
Direct Numerical Simulation ◽  
Poiseuille Flow

Direct Numerical Simulation of Drops in Three Dimensional Viscoelastic Simple Shear Flows

2001 ◽  
Author(s):  
Shriram B. Pillapakkam ◽  
Pushpendra Singh
Keyword(s):  
Numerical Simulation ◽  
Shear Flow ◽  
Direct Numerical Simulation ◽  
Viscoelastic Fluid ◽  
Simple Shear ◽  
Polymer Concentration ◽  
Three Dimensional ◽  
Simple Shear Flow ◽  
Splitting Technique

Abstract A three dimensional finite element scheme for Direct Numerical Simulation (DNS) of viscoelastic two phase flows is implemented. The scheme uses the Level Set Method to track the interface and the Marchuk-Yanenko operator splitting technique to decouple the difficulties associated with the governing equations. Using this numerical scheme, the shape of Newtonian drops in a simple shear flow of viscoelastic fluid and vice versa are analyzed as a function of Capillary number, Deborah number and polymer concentration. The viscoelastic fluid is modeled via the Oldroyd-B model. The role of viscoelastic stresses in deformation of a drop subjected to simple shear flow and its effect on the steady state shape is analyzed. Our results compare favorably with existing experimental data and also help in understanding the role of viscoelastic stresses in drop deformation.

Three-dimensional direct numerical simulation of flow induced by an oscillating sphere close to a plane boundary

2021 ◽  
Vol 33 (9) ◽  
pp. 097106
Author(s):  
Samayam Satish ◽  
Justin S. Leontini ◽  
Richard Manasseh ◽  
S. A. Sannasiraj ◽  
V. Sundar
Keyword(s):  
Numerical Simulation ◽  
Direct Numerical Simulation ◽  
Three Dimensional ◽  
Plane Boundary ◽  
Oscillating Sphere
Sign in / Sign up

Export Citation Format

Share Document