A. Attou et L. Bolle, INTEGRAL FORMULATION OF BALANCE-EQUATIONS FOR 2-PHASE FLOW-THROUGH A SUDDEN ENLARGEMENT .2. A NEW INTERLOCKED VOLUMES SEMIEMPIRICAL MODEL, Proceedings of the Institution of Mechanical Engineers. Part C, Journal of mechanical engineering science, 211(5), 1997, pp. 399-408
Using the basic model already developed in the first part of the study
, two different ways to eliminate the questionable assumption related
to the pressure value just downstream of the enlargement will be inves
tigated. The method is semi-empirical because correlations are used to
calculate the void fraction at different sections. An intermediate se
ction is artificially introduced and the local void fraction is calcul
ated as if the jet would discharge into an infinite medium. Good agree
ment with experimental data is obtained.