"Steady and unsteady simulations for annular internal condensing flows," by Ranjeeth R. Naik, Amitabh Narain et al.
 

Steady and unsteady simulations for annular internal condensing flows, part I: Algorithm and its accuracy

Document Type

Article

Publication Date

5-2-2016

Abstract

This paper presents an algorithm for accurately solving the full two-dimensional governing equations, along with the interface conditions that govern laminar/laminar annular/stratified internal condensing flows. The simulation approach - which can be generalized to adiabatic and evaporating flows, a 3-D level-set technique, and so on - uses a sharp-interface model, separate liquid and vapor domain computational solutions with interface conditions embedded as boundary conditions, and a moving grid technique to locate the dynamic wavy interface (in amplitude and phase) by a method of characteristics solution of the interface tracking equation. The moving grid is spatially fixed for a defined number of instants, but changes when the current marker instant advances in time.

Publisher's Statement

© 2016 Taylor & Francis. Publisher’s version of record: http://dx.doi.org/10.1080/10407790.2016.1138802

Publication Title

Numerical Heat Transfer, Part B: Fundamentals

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