Numerical Simulation Of Gas Exchange By Mouse Red Blood Cells PDF Download
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Author | : Robert Malcolm Simpson |
Publisher | : |
Total Pages | : 54 |
Release | : 1988 |
Genre | : Blood gases |
ISBN | : |
Download Numerical Simulation of Gas Exchange by Mouse Red Blood Cells Book in PDF, ePub and Kindle
Author | : Shihai Zhao |
Publisher | : |
Total Pages | : |
Release | : 2014 |
Genre | : Mathematics |
ISBN | : |
Download Numerical Simulation of Red Blood Cells in Capillaries Book in PDF, ePub and Kindle
A spring model is applied to simulate the skeleton structure of the red blood cell (RBC) membrane and to study the RBC rheology with an immersed boundary method. We combine the above methodology with a distributed Lagrange multiplier/fictitious domain method to simulate the motion of a compound vesicle in a microchannel. We validate the methodology by comparing the numerical results of neutrally buoyant particle with the Jeffery's solutions. Numerical results with Stokes equations are compared with numerical results with Navier-Stokes equations. With Stokes equations, the motion of compound vesicle is determined by the part of vesicle; while with Navier equations, the motion of a compound vesicle is determined by the competition between the part of the vesicle and the particle inside. Computational modeling and simulation are also presented on the motion of red blood cells behind a moving interface in a capillary. As by the nature of the problem, the computational domain is moving with either a designated RBC or an interface in an infinitely long two--dimensional channel with an undisturbed flow field in front of the computational domain. The tank--treading and the inclination angle of a cell in a simple shear flow are briefly discussed for the validation purpose. We then present and discuss the results of the motion of red blood cells behind a moving interface in a capillary, which show that the RBCs with higher velocity than the interface speed form a concentrated slug behind the moving interface. The advancing velocity is slowed down to approximately one-fourth of the initial velocity when taking into the account the effective viscosity of the mixture of RBCs and fluid behind the moving interface. This indicates the reason of the penetration failure in a capillary.
Author | : Daniel Archer Reasor |
Publisher | : |
Total Pages | : |
Release | : 2011 |
Genre | : Blood platelets |
ISBN | : |
Download Numerical Simulation of Cellular Blood Flow Book in PDF, ePub and Kindle
In order to simulate cellular blood, a coarse-grained spectrin-link (SL) red blood cell (RBC) membrane model is coupled with a lattice-Boltzmann (LB) based suspension solver. The LB method resolves the hydrodynamics governed by the Navier--Stokes equations while the SL method accurately models the deformation of RBCs under numerous configurations. This method has been parallelized using Message Passing Interface (MPI) protocols for the simulation of dense suspensions of RBCs characteristic of whole blood on world-class computing resources. :Simulations were performed to study rheological effects in unbounded shear using the Lees-Edwards boundary condition with good agreement with rotational viscometer results from literature. The particle-phase normal-stress tensor was analyzed and demonstrated a change in sign of the particle-phase pressure from low to high shear rates due to RBCs transitioning from a compressive state to a tensile state in the flow direction. Non-Newtonian effects such as viscosity shear thinning were observed for shear rates ranging from 14-440 inverse seconds as well as the strong dependence on hematocrit at low shear rates. An increase in membrane bending energy was shown to be an important factor for determining the average orientation of RBCs, which ultimately affects the suspension viscosity. The shear stress on platelets was observed to be higher than the average shear stress in blood, which emphasizes the importance of modeling platelets as finite particles.
Author | : Brian Ernest Carlson |
Publisher | : |
Total Pages | : 178 |
Release | : 2001 |
Genre | : |
ISBN | : |
Download Numerical Simulation of Sickle Cell Blood Flow in the Transverse Arteriole-capillary Microvasculature Book in PDF, ePub and Kindle
Author | : Sean O’Donoghue |
Publisher | : Frontiers Media SA |
Total Pages | : 159 |
Release | : 2022-12-16 |
Genre | : Science |
ISBN | : 2832506372 |
Download 11th international meeting on visualizing biological data (VIZBI 2021) Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 2432 |
Release | : 2004 |
Genre | : Medicine |
ISBN | : |
Download Index Medicus Book in PDF, ePub and Kindle
Vols. for 1963- include as pt. 2 of the Jan. issue: Medical subject headings.
Author | : |
Publisher | : |
Total Pages | : 1148 |
Release | : 1985 |
Genre | : Medicine |
ISBN | : |
Download Cumulated Index Medicus Book in PDF, ePub and Kindle
Author | : National Institute of General Medical Sciences (U.S.) |
Publisher | : |
Total Pages | : 470 |
Release | : 1976 |
Genre | : Medicine |
ISBN | : |
Download Subject Index of Current Research Grants and Contracts Administered by the National Institute of General Medical Sciences Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 818 |
Release | : 1987 |
Genre | : Medicine |
ISBN | : |
Download Research Awards Index Book in PDF, ePub and Kindle
Author | : |
Publisher | : |
Total Pages | : 404 |
Release | : 1980 |
Genre | : Power resources |
ISBN | : |
Download Energy Research Abstracts Book in PDF, ePub and Kindle