کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
758979 896458 2012 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On a two-fluid model of two-phase compressible flows and its numerical approximation
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
On a two-fluid model of two-phase compressible flows and its numerical approximation
چکیده انگلیسی

We consider a two-fluid model of two-phase compressible flows. First, we derive several forms of the model and of the equations of state. The governing equations in all the forms contain source terms representing the exchanges of momentum and energy between the two phases. These source terms cause unstability for standard numerical schemes. Using the above forms of equations of state, we construct a stable numerical approximation for this two-fluid model. That only the source terms cause the oscillations suggests us to minimize the effects of source terms by reducing their amount. By an algebraic operator, we transform the system to a new one which contains only one source term. Then, we discretize the source term by making use of stationary solutions. We also present many numerical tests to show that while standard numerical schemes give oscillations, our scheme is stable and numerically convergent.


► The derivation of several forms of the two fluid model of two phase flows.
► The reduction of source terms.
► The construction of a stable numerical scheme.
► Numerical tests are available.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Communications in Nonlinear Science and Numerical Simulation - Volume 17, Issue 1, January 2012, Pages 195–211
نویسندگان
,