Development of Linearized Real-Fluid Model in Simulating Spray Combustion Flows

Assessment of an Open-Source Pressure-Based Real Fluid Model for Transcritical Jet Flows

10.2218/iclass.2021.6040 ◽

2021 ◽

Vol 1 (1) ◽

Author(s):

Faniry N. Z. Rahantamialisoa ◽

Adrian Pandal ◽

Ningegowda B. M. ◽

Jacopo Zembi ◽

Nasrin Sahranavardfard ◽

...

Keyword(s):

Open Source ◽

Fluid Model ◽

Jet Flows ◽

Source Pressure ◽

Real Fluid

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A CFD Model for Real Gas Flows

Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery ◽

10.1115/2000-gt-0518 ◽

2000 ◽

Cited By ~ 4

Author(s):

Carlo Cravero ◽

Antonio Satta

Keyword(s):

Numerical Solutions ◽

Turbulence Modeling ◽

Stokes Equations ◽

Fluid Model ◽

Industrial Applications ◽

Navier Stokes ◽

Gas Flows ◽

Navier Stokes Equations ◽

Real Fluid ◽

Solution Methods

Numerical solutions of Navier-Stokes equations are nowadays widely used for several industrial applications in different fields (aerodynamic, propulsion, naval, combustion, etc..), but the solution methods still require significant improvements especially in two aspects: turbulence modeling and fluid modeling. The paper describes in some detail a real fluid model based on Redlich-Kwong-Aungier equation of state and its implementation into a Navier-Stokes solver developed by the authors for turbomachinery flows analysis.

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Towards Understanding the Structure of Subcritical and Transcritical Liquid–Gas Interfaces Using a Tabulated Real Fluid Modeling Approach

Energies ◽

10.3390/en14185621 ◽

2021 ◽

Vol 14 (18) ◽

pp. 5621

Author(s):

Sajad Jafari ◽

Hesham Gaballa ◽

Chaouki Habchi ◽

Jean-Charles de Hemptinne

Keyword(s):

Equations Of State ◽

Fluid Model ◽

Thermodynamic Characteristics ◽

Diffuse Interface ◽

Numerical Schemes ◽

Two Phase ◽

Jet Mixing ◽

Fuel Atomization ◽

Real Fluid ◽

Rfm Model

A fundamental understanding and simulation of fuel atomization, phase transition, and mixing are among the topics researchers have struggled with for decades. One of the reasons for this is that the accurate, robust, and efficient simulation of fuel jets remains a challenge. In this paper, a tabulated multi-component real-fluid model (RFM) is proposed to overcome most of the limitations and to make real-fluid simulations affordable. Essentially, a fully compressible two-phase flow and a diffuse interface approach are used for the RFM model, which were implemented in the CONVERGE solver. PISO and SIMPLE numerical schemes were modified to account for a highly coupled real-fluid tabulation approach. These new RFM model and numerical schemes were applied to the simulation of different fundamental 1-D, 2-D, and 3-D test cases to better understand the structure of subcritical and transcritical liquid–gas interfaces and to reveal the hydro-thermodynamic characteristics of multicomponent jet mixing. The simulation of a classical cryogenic injection of liquid nitrogen coaxially with a hot hydrogen jet is performed using thermodynamic tables generated by two different equations of state: Peng–Robinson (PR) and Soave–Redlich–Kwong (SRK). The numerical results are finally compared with available experimental data and published numerical studies with satisfactory agreement.

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