Multicomponent transcritical flow simulation based on in situ adaptive tabulation of vapor-liquid equilibrium solutions

Hongyuan Zhang, Suo Yang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The studies of transcritical and supercritical injection have attracted much interest in the past 30 years. However, most of them were mainly concentrated on the single-component system, whose critical point is a constant value. To capture the thermophysical properties of multicomponent, a phase equilibrium solver is needed, which is also called a vapor-liquid equilibrium (VLE) solver. But VLE solver increases the computation cost significantly. Tabulation methods can be used to store the solution to avoids a mass of redundant computation. However, the size of a table increases exponentially with respect to the number of components. When the number of species is greater than 3, the size of a table far exceeds the limit of RAM in today’s computers. In this research, an online tabulation method based on In Situ Adaptive Tabulation (ISAT) is developed to accelerate the computation of multicomponent fluid. Accuracy and efficiency are analyzed and discussed. The CFD solver used in this research is based on the Pressure-Implicit with Splitting of Operators (PISO) method. Peng-Robinson equation of state is used in phase equilibrium.

Original languageEnglish (US)
Title of host publicationAIAA Scitech 2021 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
Pages1-10
Number of pages10
ISBN (Print)9781624106095
StatePublished - 2021
EventAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021 - Virtual, Online
Duration: Jan 11 2021Jan 15 2021

Publication series

NameAIAA Scitech 2021 Forum

Conference

ConferenceAIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021
CityVirtual, Online
Period1/11/211/15/21

Bibliographical note

Funding Information:
S. Yang gratefully acknowledges the faculty start-up funding from the University of Minnesota and the grant support from NSF CBET 2023932. H. Zhang gratefully acknowledges the support from the 3M Science and Technology Doctoral Fellowship and UMII MnDRIVE Graduate Assistantship Award. Part of the computational resources was provided by the Minnesota Supercomputing Institute (MSI).

Publisher Copyright:
© 2021, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

Fingerprint

Dive into the research topics of 'Multicomponent transcritical flow simulation based on in situ adaptive tabulation of vapor-liquid equilibrium solutions'. Together they form a unique fingerprint.

Cite this