000008795 001__ 8795
000008795 005__ 20141204083521.0
000008795 04107 $$aeng
000008795 046__ $$k12/05/2014
000008795 100__ $$aHric, V.
000008795 24500 $$aNUMERICAL SOLUTION OF INVISCID TRANSONIC FLOW IN A CHANNEL WITH COMPLEX EQUATION OF STATE

000008795 24630 $$n20.$$pEngineering Mechanics 2014
000008795 260__ $$bBrno University of Technology- Institute of Solid Mechanics, Mechatronics and Biomechanics
000008795 506__ $$arestricted
000008795 520__ $$2eng$$aThe presented paper deals with the incorporation of complex (non-ideal) equation of state into the Euler model which describes dynamics of inviscid fluid. We have performed numerical experiments for the steady transonic flow of steam in the 2D GAMM channel (channel with the 10% thick circular arc bump on the lower wall). The using of complex equation of state allows the more accurate prediction of thermodynamic quantities, mainly in the regions where compressibility factor differs from unity. The results achieved by the van der Waals, Redlich-Kwong-Aungier, one-coefficient virial and special gas IAPWS equation of state are compared with the traditional perfect gas model. All of these models are implemented into in-house CFD code based on the finite volume method in 2D along with the AUSM+ flux scheme. The results confirmed the necessity of using more complex equations of state, especially when higher pressures are considered.

000008795 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000008795 653__ $$aReal gas, Euler inviscid model, GAMM channel, Finite volume method.

000008795 7112_ $$aEngineering Mechanics 2014$$cSvratka (CZ)$$d12/05/2014 - 15/05/2014$$gEM2014
000008795 720__ $$aHric, V.$$iHalama, J.$$iFürst, J.
000008795 8560_ $$ffischerc@itam.cas.cz
000008795 8564_ $$s658424$$uhttps://invenio.itam.cas.cz/record/8795/files/46-Hric-CD.pdf$$yOriginal version of the author's contribution as presented on CD, paper No. 46.
000008795 962__ $$r70
000008795 980__ $$aPAPER