Abstract
Numerical simulation is a tool used in multiple scientific domains. There is a wide range of simulations where we model a flow of fluid in a specific geometry, for example in simulations of blood flow in microfluidic channels. In such cases, a complex shape of channels has to be defined by describing its boundaries and rigid obstacles. The purpose of this study is develop a method of defining boundaries and obstacle objects with complex and non-trivial shapes in such numerical simulations. The obstacle or a boundary needs to be described only by a cloud of points defining its surface. Based on this point cloud a distance function determining the position and the shape of the obstacle is defined in the whole simulation domain. This general method is presented on a concrete examples involving several simulations performed within a simulation package ESPResSo. The new method of obstacle creation gives excellent results in terms of the accuracy and simulation time consumption.
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Acknowledgements
This publication has been produced with the support of the Integrated Infrastructure Operational Program for the project: Creation of a Digital Biobank to Support the Systemic Public Research Infrastructure, ITMS: 313011AFG4, co-financed by the European Regional Development Fund.
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Kovalčíková Ďuračíková, K., Bugáňová, A., Cimrák, I. (2022). Modelling of Arbitrary Shaped Channels and Obstacles by Distance Function. In: Rojas, I., Valenzuela, O., Rojas, F., Herrera, L.J., Ortuño, F. (eds) Bioinformatics and Biomedical Engineering. IWBBIO 2022. Lecture Notes in Computer Science(), vol 13346. Springer, Cham. https://doi.org/10.1007/978-3-031-07704-3_3
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