000004766 001__ 4766
000004766 005__ 20141119144551.0
000004766 04107 $$aeng
000004766 046__ $$k2002-06-02
000004766 100__ $$aRocca, Michele La
000004766 24500 $$aMATHEMATICAL MODEL FOR 1D, TWO-PHASE FLOW

000004766 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference
000004766 260__ $$bColumbia University in the City of New York
000004766 506__ $$arestricted
000004766 520__ $$2eng$$aIn this paper a mathematical model for 1D, two-phase flow in a duct is presented. Such kind of flow is frequently met when the pressure attains the saturation value so that bubbles of vapour and gas are released in the flow. The model is defined considering the balance equations of mass and momentum for the mixture constituted by both phases and the balance equations of mass and energy for the vapour phase. Such a model consists of four partial, differential, first order equations, whose characteristic directions are all real. The initial value problem corresponding to the proposed model is then well posed. Numerical simulations were compared with experimental data, found in literature. The agreement is found to be satisfactory.

000004766 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004766 653__ $$aTwo-phase models, One-component bubbly flow, Pressure transients, Water-hammer phenomena

000004766 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002
000004766 720__ $$aRocca, Michele La$$iMele, Paolo
000004766 8560_ $$ffischerc@itam.cas.cz
000004766 8564_ $$s87772$$uhttp://invenio.itam.cas.cz/record/4766/files/310.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004766 962__ $$r4594
000004766 980__ $$aPAPER