We present numerical simulations of a model of coupling between a inviscid compressible fluid and a pointwise particle. The particle is seen as a moving interface, through which interface conditions are prescribed. Key points are to impose those conditions at the numerical level, and to deal with the coupling between an ordinary and a partial differential equations.

This paper reviews several periodogram-based methods for estimating the long-memory parameter H in time series and suggests a way to robustify them. The high frequencies tend to bias the estimates. Using only low frequencies eliminates the bias but increases the variance. We hence suggest plotting the estimates of H as a function of a parameter which balances bias versus variance and, if the pl...

Easily available software for diagram creation does not support the comparison of different versions and the merging of such versions. We present new methods and techniques for easy versioning of general two-dimensional diagrams. Multiple novel versioning methods for diagram versioning are compared to each other as well as to previous work in a user study. Participants in a user study preferred...

Abstract Coupled Volume of Fluid and Level Set method inherits the advantages VOF methods, takes function as main body to simulate fluid motion interface, corrects normal direction interface through function, so effectively overcome shortcomings two methods. The numerical simulation example multi vortex shear flow field shows that this can ensure better accuracy moving higher calculation effici...

This research intends to study the interface of key concepts Marketing and Quality in relation Fast Moving Consumer Goods (FMCG) Customers. variables i.e. product, price, place ...

We present a numerical model for two-phase porous media ̄ow, where the phases are separated by a sharp interface. The model is based on a uni®ed pressure equation, and an advection equation for tracking a pseudo-concentration function. The zero-level set of this function de®nes the interface between the ̄uids. The ®nite element method is used for spatial discretization, with local grid re®nemen...