Accurate numerical simulation of interface phenomena in two phase flow

• Autorzy: Sehgal B. R. , Bui V. A. , Dinh T. N.
• Konferencja: International Conference on Heat Transfer and Transport Phenomena in Multiphase Systems HEAT '99 (2; 18-22.05.1999; Kielce, Poland)
• Języki publikacji: EN

Abstrakty

EN

Surface phenomena and hydrodynamic interactions, occuring at the liquid-liquid interfaces, are numerically investigated using an advanced modeling approach, based on Eulearian representation of the flow field coupled with an explicit interface tracking method, named the Level Set Method, which accurately follows the interfacial evolution in time. A high-order numerical scheme, called CIP (Cubic-lnterpolated-Pseudoparticle), is employed to solve the Navier-Stokes and the level set equations with high accuracy. The surface tension force is modeled and included as a source term in the momentum equations. The modeling approach was applied to study some important practical problems, such as the development of the Kelvin-Helmholtz instability at an interface and the deformation and fragmentation of high-density jet/drops in a flow field. Sensitivity analysis was also performed, which helped to identify factors, important in governing the interfacial interactions and their effects.

Słowa kluczowe

EN

interface tracking; numerical simulation; level set; interface instability; two phase interfaces

• Wydawca: Wydawnictwo Politechniki Świętokrzyskiej
• Czasopismo: Zeszyty Naukowe Politechniki Świętokrzyskiej. Mechanika
• Rocznik: 1999
• Tom: Z. 67
• Strony: 113--125
• Opis fizyczny: Bibliogr. 11 poz., rys., tab., wykr., wzory

Twórcy

autor

Sehgal B. R.

• Division of Nuclear Power Safety, Royal Institute of Technology, Stockholm, Sweden

autor

Bui V. A.

• Building, Construction, and Engineering, CSIRO, Highett, Victoria 3190, Australia

autor

Dinh T. N.

• Department of Mechanical and Environmental Engineering, University of California, Santa Barbara. CA 93105