Method of regularized sources for stokes flow problems with improved calculation of velocity derivatives at the boundary

Božidar Šarler (Avtor), Shiting Wen (Avtor), Ming Li (Avtor), Qingguo Liu (Avtor)

Povzetek

The solution of Stokes flow problems with Dirichlet and Neumann boundary conditions is performed by a non-singular Method of Fundamental Solutions which does not require artificial boundary, i.e. source points of fundamental solution coincide with the collocation points on the boundary. Instead of Dirac delta force, an exponential function, called blob, with a free parameter epsilon is employed, which limits to Dirac delta function when epsilon limits to zero. The solution of the problem is sought as a linear combination of the fields due to the regularized sources that coincide with the boundary and with their intensities chosen in such a way that the solution complies with the boundary conditions. A two-dimensional flow between parallel plates is chosen to assess the properties of the method. The results of the method are accurate except for the derivatives at the boundary. A correction of the method is proposed which can be used to properly assess also the derivatives at the boundary

Ključne besede

stokes flow;method of regularized sources;meshless method;

Podatki

Jezik:	Angleški jezik
Leto izida:	2016
Tipologija:	1.12 - Objavljeni povzetek znanstvenega prispevka na konferenci
Organizacija:	UNG - Univerza v Novi Gorici
UDK:	536
COBISS:	4417531
Št. ogledov:	3545
Št. prenosov:	0
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

URN:	URN:SI:UNG
Vrsta dela (COBISS):	Delo ni kategorizirano
Strani:	Str. 28-29
ID:	9153681