Simulation of Thrombus Formation in Shear Flows Using Lattice Boltzmann Method

2009 ◽  
Vol 33 (8) ◽  
pp. 604-610 ◽  
Author(s):  
Masaaki Tamagawa ◽  
Hiroaki Kaneda ◽  
Miki Hiramoto ◽  
Sho Nagahama
Keyword(s):  
Lattice Boltzmann Method ◽  
Lattice Boltzmann ◽  
Shear Flows ◽  
Thrombus Formation ◽  
Boltzmann Method

CFD Study of Thrombus Formation on Shear Blood Flows by Using Modified Lattice Boltzmann Method and Thrombus Observation

2008 ◽  
Author(s):  
Masaaki Tamagawa
Keyword(s):  
Lattice Boltzmann Method ◽  
Lattice Boltzmann ◽  
Shear Flows ◽  
Thrombus Formation ◽  
Prediction Method ◽  
Rotary Blood Pump ◽  
Blood Flows ◽  
Orifice Flow ◽  
Computational Fluid Dynamics Cfd ◽  
Boltzmann Method

This paper describes development of the prediction method of thrombus formation by Computational Fluid Dynamics (CFD) on pipe orifice shear flows. These shear flows are typical models of the flow in the rotary blood pump. In this investigation, the thrombus formation in blood plasma flow is visualized, and modified lattice Boltzmann method are used to predict the backward forwarding step flow, that is simple model of the orifice flow.

Prediction Method of Thrombus Formation Process in Separation and Reattachment Blood Flow Using Lattice Boltzmann Method

2009 ◽  
Author(s):  
Masaaki Tamagawa
Keyword(s):  
Lattice Boltzmann Method ◽  
Lattice Boltzmann ◽  
Shear Flows ◽  
Thrombus Formation ◽  
Prediction Method ◽  
Rotary Blood Pump ◽  
Step Flow ◽  
Orifice Flow ◽  
Computational Fluid Dynamics Cfd ◽  
Boltzmann Method

This paper describes development of the prediction method of thrombus formation by Computational Fluid Dynamics (CFD) on pipe orifice shear flows. These shear flows are typical models of the flow in the rotary blood pump. In this investigation, modified lattice Boltzmann method are used to predict the backward forwarding step flow, that is simple model of the orifice flow.

Simulation of Thrombus Formation Process Using Lattice Boltzmann Method With Consideration of Adhesion Force to Wall

2010 ◽  
Author(s):  
Masaaki Tamagawa
Keyword(s):  
Lattice Boltzmann Method ◽  
Lattice Boltzmann ◽  
Adhesion Force ◽  
Thrombus Formation ◽  
Artificial Organs ◽  
Physical Parameters ◽  
Physical Factors ◽  
Blood Pumps ◽  
Boltzmann Method ◽  
Rotary Blood Pumps

Recently artificial organs, especially rotary blood pumps, have been developed in the worldwide, but in this development, thrombus occurs in the pumps. In general, the main physical factors of thrombus formation are considered to be shear rate, wall properties for blood’s adhesion. But, there are no proper CFD codes for predicting thrombus formations using physical parameters in shear flows. In this paper, new model for predicting thrombus formation by considering aggregation and adhesion force to the wall by lattice Boltzmann method is proposed, and the trend of thrombus’s adhesion to the wall can be simulated more adequately than that of previous one.

CFD Based Prediction Method of Thrombus Formation in Shear Flow and Its Validation

2008 ◽  
Author(s):  
Masaaki Tamagawa ◽  
Sho Nagahama
Keyword(s):  
Lattice Boltzmann ◽  
Shear Flows ◽  
Thrombus Formation ◽  
Prediction Method ◽  
Blood Pump ◽  
Rotary Blood Pump ◽  
Step Flow ◽  
Orifice Flow ◽  
Computational Fluid Dynamics Cfd ◽  
Boltzmann Method

This paper describes development of the prediction method of thrombus formation by Computational Fluid Dynamics (CFD) on pipe orifice shear flows. These shear flows are typical models of the flow in the rotary blood pump. In this investigation, the thrombus formation in blood plasma flow is visualized, and modified lattice Boltzmann method are used to predict the backward forwarding step flow, that is simple model of the orifice flow.

CFD Study of Thrombus Formation on Shear Blood Flows for Developing Prediction Method of Thrombus

2007 ◽  
Author(s):  
Masaaki Tamagawa
Keyword(s):  
Lattice Boltzmann ◽  
Shear Flows ◽  
Thrombus Formation ◽  
Prediction Method ◽  
Rotary Blood Pump ◽  
Step Flow ◽  
Blood Flows ◽  
Orifice Flow ◽  
Computational Fluid Dynamics Cfd ◽  
Boltzmann Method

This paper describes development of the prediction method of thrombus formation by Computational Fluid Dynamics (CFD) on pipe orifice shear flows. These shear flows are typical models of the flow in the rotary blood pump. In this investigation, the thrombus formation in blood plasma flow is visualized, and modified lattice Boltzmann method are used to predict the backward forwarding step flow, that is simple model of the orifice flow.

LATTICE BOLTZMANN SIMULATIONS OF DROP DEFORMATION AND BREAKUP IN SHEAR FLOWS

2003 ◽  
Vol 17 (01n02) ◽  
pp. 21-26 ◽  
Author(s):  
T. INAMURO ◽  
R. TOMITA ◽  
F. OGINO
Keyword(s):  
Reynolds Number ◽  
Lattice Boltzmann Method ◽  
Lattice Boltzmann ◽  
Shear Flows ◽  
Immiscible Fluids ◽  
Drop Deformation ◽  
Lattice Boltzmann Simulations ◽  
Boltzmann Method

A lattice Boltzmann method for multicomponent immiscible fluids is applied to simulations of drop deformation and breakup in shear flows for various capillary numbers and viscosity ratios at three different Revnolds numbers, Re = 0.2, 1, 10. The effect of the Reynolds number on drop deformation and breakup in shear flows is investigated. It is found that the drop is easier to deform and to be ruptured as the Reynolds number increases.

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