With the increase of computer power and advancement of modeling software, the study of turbulent gas-particle flow problems using computational fluid dynamics (CFD) techniques is gradually becoming attractive in the engineering field. Two basic CFD approaches are used to simulate the gas-particle flow, i.e. the Eulerian-Lagrangian model and the EulerianEulerian model. The aim of this thesis is ...

In this work, we deal with the 1D compressible fluid coupled with elastic solid in an Eulerian-Lagrangian system. To facilitate the analysis, the Naviers equation for elastic solid is cast into a 2×2 system similar to the Euler equation but in Lagrangian coordinate. The modified Ghost Fluid Method is employed to treat the fluid-elastic solid coupling, where an Eulerian-Lagrangian Riemann proble...

We use a new method, the cross power spectrum between the linear density field and the halo number density field, to measure the Lagrangian bias for dark matter halos. The method has several important advantages over the conventional correlation function analysis. By applying this method to a set of high-resolution simulations of 256 particles, we have accurately determined the Lagrangian bias,...

A good mesh moving method is an important part of ?ow computations with moving-mesh methods like the space–time (ST) and Arbitrary Lagrangian–Eulerian (ALE) methods. With a method, we can decrease remeshing frequency even when ?uid–solid ?uid–?uid interfaces undergo large displacements, element distortion in parts domain where care about solution accuracy more, maintain quality boundary layer m...

The sclera is considered as the principal load-bearing tissue within eye. negatively charged; thus, it exhibits mechanical response to electrical stimulation. We recently demonstrated electroactive behavior of by performing experimental measurements that captured deformation tip scleral strips subjected electric voltage. also numerically analyzed electromechanical using a chemo-electro-mechanic...