Stefano Oliani, Riccardo Friso , Nicola Casari, Michele Pinelli, Alessio Suman, Mauro Carnevale

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Numerical simulations of particle-laden flows have received growing attention in the last decade, due to the broad spectrum
of industrial applications in which discrete phases prediction is of interest. Among these, ingestion of particles by turbomachinery is an area that is seeing vivid research and studies. The most
common technique to tackle this kind of problem is the EulerianLagrangian method, in which individual particles are tracked
inside the domain. At the same time, in multi-stage turbomachinery simulations interfaces are needed to couple the flow solution in adjacent domains in relative motion. In this work, an open-source extension for Lagrangian simulations in multistage rotating machines is presented in the foam-extend environment.
Firstly, a thorough discussion of the implementation is presented, with particular emphasis on particle passage through General Grid Interfaces (GGI) and mixing planes. Moreover, a massconservative particle redistribution technique is described, as such a property is requested at interfaces between Multiple Reference Frame (MRF). The peculiarities of the algorithm are then shown on a relevant test-case. Eventually, three turbomachinery
applications are presented, with growing complexity, to show the capabilities of the numerical code in real-life applications. Simulation results in terms of erosion and impacts on aerodynamic surfaces are also presented as examples of possible parameters of interest in particle-laden flow computations
Original languageEnglish
Article numberGT2021-59474
JournalJournal of Turbomachinery
Early online date16 Sept 2021
Publication statusPublished - 19 Apr 2022

Bibliographical note

Paper No: GT2021-59474, V02CT34A025

ASJC Scopus subject areas

  • Engineering(all)


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