Nonclassical gasdynamic region of selected fluorocarbons

A Guardone, BM Argrow - Physics of Fluids, 2005 - pubs.aip.org
The nonclassical gasdynamic region of fluorinated substances belonging to the PP, FC, and
E series is investigated using different thermodynamic models of increasing complexity …

A priori analysis of subgrid-scale terms in compressible transcritical real gas flows

A Giauque, A Vadrot, P Errante, C Corre - Physics of Fluids, 2021 - pubs.aip.org
Of interest to the research community dealing with real gas flows, this study analyzes the
influence of the physical complexity of real gases on the amplitude of subgrid-scale (SGS) …

Robust optimization of dense gas flows under uncertain operating conditions

P Cinnella, SJ Hercus - Computers & Fluids, 2010 - Elsevier
A robust optimization procedure based on a multi-objective genetic algorithm (MOGA) is
used to generate airfoil profiles for transonic inviscid flows of dense gases, subject to …

On the computation of the fundamental derivative of gas dynamics using equations of state

P Colonna, NR Nannan, A Guardone… - Fluid phase …, 2009 - Elsevier
The value of the fundamental derivative of gas dynamics, Γ, is a quantitative measure of the
variation of the speed of sound with respect to density in isentropic transformations, such as …

Preliminary design method for dense-gas supersonic axial turbine stages

EA Bufi, P Cinnella - Journal of Engineering for Gas …, 2018 - asmedigitalcollection.asme.org
A fast preliminary design methodology for supersonic organic Rankine cycle (ORC) stator
and rotor axial turbine blades with low degree of reaction is presented. First, the stator and …

Sensitivity analysis of dense gas flow simulations to thermodynamic uncertainties

P Cinnella, P Marco Congedo, V Pediroda… - Physics of …, 2011 - pubs.aip.org
The paper investigates the sensitivity of numerically computed flow fields to uncertainties in
thermodynamic models for complex organic fluids. Precisely, the focus is on the propagation …

On the development of an implicit discontinuous Galerkin solver for turbulent real gas flows

E Mantecca, A Colombo, A Ghidoni, G Noventa… - Fluids, 2023 - mdpi.com
The aim of this work is to describe an efficient implementation of cubic and multiparameter
real gas models in an existing discontinuous Galerkin solver to extend its capabilities to the …

[HTML][HTML] Efficient implementation of complex equations of state in a high-order framework

E Mantecca, A Colombo, A Ghidoni… - Journal of Computational …, 2024 - Elsevier
In the last decades, the interest in non-ideal compressible fluid dynamics (NICFD) flows and
high-order accurate numerical methods, such as discontinuous Galerkin (dG), has quickly …

High-fidelity numerical investigation of a real gas annular cascade with experimental validation

A Giauque, D Schuster, C Corre - Physics of Fluids, 2023 - pubs.aip.org
This study aims at investigating real gas flow in the complex geometry of the Cambridge
University annular turbine cascade using numerical simulations. The objectives include …

Quantification of thermodynamic uncertainties in real gas flows

P Cinnella, PM Congedo… - International Journal …, 2010 - inderscienceonline.com
A tensorial-expanded chaos collocation method is developed to take into account
uncertainties on thermodynamic properties of complex organic substances. Precisely, we …