Projection FEM for liquid-solid phase change controlled by convection and conduction

• Autorzy: Banaszak J.
• 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

Two-dimensional Finite Element (FEM) simulation is presented for solid-liquid phase change controlled by natural convection and conduction. The algorithm is based on a combination of: (1) - the projection method that uncouples velocity and pressure calculations for incompressible fluid flow, (2) - a component-by-component time splitting to account for the most optimal discrete scheme for convection and diffusion, (3) - an enthalpy-porosity approach to model the latent heat effect on a fixed grid. Credibility of thus obtained numerical predictions is investigated through the verification and validation study of the computational model. Accuracy is verified through commonly used benchmark problems. A natural convection of freezing pure water is next calculated and the results obtained are compared with detailed experimental measurements available in literature. A range of congruity of the experimental and numerical results is thoroughly studied to find out their good agreement.

Słowa kluczowe

EN

finite element method; phase change; projection and enthalpy methods

• Wydawca: Wydawnictwo Politechniki Świętokrzyskiej
• Czasopismo: Zeszyty Naukowe Politechniki Świętokrzyskiej. Mechanika
• Rocznik: 1999
• Tom: Z. 67
• Strony: 23--33
• Opis fizyczny: Bibliogr. 9 poz., rys., tab., wykr., wzory

Twórcy

autor

Banaszak J.

• Institute of Heat Engineering, Warsaw University of Technology, 25 Nowowiejska Str., 00-665 Warsaw, Poland

Uwagi

EN

This work is supported by the Polish State Commitee for Scientific Research, grant No. 3 T09C 002 12.