TY  - INPR
JF  - IEEE Transactions on Visualization and Computer Graphics
KW  - Computational modeling
KW  -  Mathematical model
KW  -  Numerical models
KW  -  Visualization
KW  -  Fluids
KW  -  Electronic mail
A1  - Bender, J
A1  - Koschier, D
A1  - Kugelstadt, T
A1  - Weiler, M
ID  - discovery10056693
N2  - In this paper we introduce a novel micropolar material model for the simulation of turbulent inviscid fluids. The governing equations are solved by using the concept of Smoothed Particle Hydrodynamics (SPH). SPH fluid simulations suffer from numerical diffusion which leads to a lower vorticity, a loss in turbulent details and finally in less realistic results. To solve this problem we propose a micropolar fluid model. The micropolar fluid model is a generalization of the classical Navier-Stokes equations, which are typically used in computer graphics to simulate fluids. In contrast to the classical Navier-Stokes model, micropolar fluids have a microstructure and therefore consider the rotational motion of fluid particles. In addition to the linear velocity field these fluids have a field of microrotation which represents existing vortices and provides a source for new ones. Our novel micropolar model can generate realistic turbulences, is linear and angular momentum conserving, can be easily integrated in existing SPH simulation methods and its computational overhead is negligible. Another important visual feature of turbulent liquids is foam. Therefore, we present a post-processing method which considers microrotation in the foam generation. It works completely automatic and requires only one user-defined parameter to control the amount of foam.
SN  - 1077-2626
UR  - https://doi.org/10.1109/TVCG.2018.2832080
N1  - This version is the author accepted manuscript. For information on re-use, please refer to the publisher?s terms and conditions.
TI  - Turbulent Micropolar SPH Fluids with Foam
AV  - public
Y1  - 2018/05/01/
ER  -