A volume-of-fluid method for variable-density, two-phase flows at supercritical pressure

J Poblador-Ibanez, WA Sirignano - Physics of Fluids, 2022 - pubs.aip.org
A two-phase, low-Mach-number flow solver is created and verified for variable-density liquid
and gas with phase change. The interface is sharply captured using a split volume-of-fluid …

Temporal atomization of a transcritical liquid n-decane jet into oxygen

J Poblador-Ibanez, WA Sirignano - International Journal of Multiphase Flow, 2022 - Elsevier
The injection of liquid fuel at supercritical pressures is a relevant but overlooked topic in
combustion. Typically, the role of two-phase dynamics is neglected under the assumption …

Analyzing single and multicomponent supercritical jets using volume-based and mass-based numerical approaches

FNZ Rahantamialisoa, JV Madana Gopal, G Tretola… - Physics of …, 2023 - pubs.aip.org
The injections of cryogenic and non-cryogenic fluids in a supercritical environment,
respectively, liquid N2 into gaseous N2 and n-dodecane into gaseous N2, are investigated …

Toward a Real-Fluid Modeling Framework for Sustainable Aviation Fuels

J Poblador-Ibanez, L Nocivelli - Fuel Communications, 2024 - Elsevier
A multi-agency effort is underway to decarbonize the aviation industry by 2050 and replace
current fossil fuels such as Jet A. Carbon-free hydrogen-based technologies are a long-term …

Self-similar solution of a supercritical two-phase laminar mixing layer

J Poblador-Ibanez, BW Davis, WA Sirignano - International Journal of …, 2021 - Elsevier
Previous works for a liquid suddenly contacting a gas at a supercritical pressure show the
coexistence of both phases and the generation of diffusion layers on both sides of the liquid …

[HTML][HTML] Impact of thermo-physical model and mixing method on the trans-and supercritical injection simulation of liquid hydrogen

Z Weng, G Tretola, R Mével, K Vogiatzaki - International Journal of …, 2024 - Elsevier
The use of liquid hydrogen (LH 2) is anticipated to enhance the volumetric energy density in
future energy and transportation systems, though it necessitates storage at extremely low …

Liquid-jet instability at high pressures with real-fluid interface thermodynamics

J Poblador-Ibanez, WA Sirignano - Physics of Fluids, 2021 - pubs.aip.org
The injection of liquid fuel at supercritical pressures is a relevant topic in combustion but is
usually overlooked. In the past, the wrong assumption whereby the liquid phase undergoes …

Theoretical profiles of two-phase transcritical laminar boundary layer near the Widom line

Z Li, R Yang, Y Zhao - International Journal of Multiphase Flow, 2023 - Elsevier
Boundary layers can be defined as sub-, trans-, and supercritical regime according to
whether their temperature profiles cross the Widom line. The transcritical boundary layers …

Linear stability of real-fluid mixing layers at supercritical pressures

X Wang, T Liu, D Ma, V Yang - Physics of Fluids, 2022 - pubs.aip.org
Linear stability analysis is a useful tool for the exploration of the initial evolution of flow
motions in mixing layers. A real fluid mixing layer exhibits strong property variations and …

A Similarity Model of Specific Heat Loss Determined by Dimensional Analysis

M Čarnogurská, M Příhoda, M Lázár, N Jasminská… - Applied Sciences, 2023 - mdpi.com
This article describes an innovative method for the determination of heat flow (specific heat
loss; linear heat flow density) from a one-metre length of a twin pipe directly-buried heat …