Characteristic Study of Coriolis Force on Free Convection in a Finite Geometry with Isotropic and Anisotropic Porous Media

2020 ◽  
pp. 985-997
Author(s):  
Sudhir Patel ◽  
P. A. Dinesh ◽  
S. P. Suma ◽  
N. L. Ramesh
Keyword(s):  
Porous Media ◽  
Free Convection ◽  
Coriolis Force ◽  
Finite Geometry ◽  
Anisotropic Porous Media

HEATLINE VISUALIZATION OF BUOYANCY INDUCED FLOWS FOR NON-DARCY ANISOTROPIC POROUS MEDIA

2020 ◽  
Vol 11 (4) ◽  
pp. 359-379
Author(s):  
Narasimha Suri Tinnaluri ◽  
Lokesh Kalapala ◽  
Jaya Krishna Devanuri
Keyword(s):  
Porous Media ◽  
Anisotropic Porous Media

Validation of the Thermal Non-Equilibrium Model in Periodic MHD Free Convection in a Non-Darcy Porous Media

2012 ◽  
Vol 5 (2) ◽  
pp. 144-149
Author(s):  
Montasser S. Tahat ◽  
Abdulmajeed S. Al-Ghamdi ◽  
Mohammad Q. Al-Odat
Keyword(s):  
Porous Media ◽  
Free Convection ◽  
Equilibrium Model ◽  
Non Equilibrium

Numerical Simulation of Insulin Depot Formation and Absorption in Subcutaneous Tissue Modeled as a Homogeneous Anisotropic Porous Media

2021 ◽  
Author(s):  
Michael Zedelmair ◽  
Abhijit Mukherjee
Keyword(s):  
Porous Media ◽  
Numerical Model ◽  
Insulin Pump ◽  
Subcutaneous Tissue ◽  
Saturated Porous Media ◽  
Anisotropic Porous Media ◽  
Effective Option ◽  
Computational Fluid Dynamics Cfd ◽  
Experimental Findings ◽  
Subcutaneous Adipose

Abstract In this study, a numerical model of the insulin depot formation and absorption in the subcutaneous adipose tissue is developed using the commercial Computational Fluid Dynamics (CFD) software. A better understanding of these mechanisms can be helpful in the development of new devices and cannula geometries as well as predicting the concentration of insulin in the blood. The injection method considered in this simulation is by the use of an insulin pump using a rapid acting U100 insulin analogue. The depot formation is analyzed running Bolus injections ranging from 5-15 units of insulin corresponding to 50-150µl. The insulin is injected into the subcutaneous tissue in the abdominal region. The tissue is modeled as a fluid saturated porous media. An anisotropic approach to define the tissue permeability is studied by varying the value of the porosity in parallel and perpendicular direction having an impact on the viscous resistance to the flow. Following recent experimental findings this configuration results in a disk shaped insulin depot. To be able to run the simulation over longer timeframes the depot formation model has been extended implementing the process of absorption of insulin from the depot. The developed model is then used to analyze the formation of the insulin depot in the tissue when using different flow rates and cannula geometries. The numerical model is an effective option to evaluate new cannula designs prior to the manufacturing and testing of prototypes, which are rather time consuming and expensive.

Sign in / Sign up

Export Citation Format

Share Document