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Title: Computational thermo-hydro-mechanics for multiphase freezing and thawing porous media in the finite deformation range

Authors:
;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1398809
Grant/Contract Number:
1557089
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Computer Methods in Applied Mechanics and Engineering
Additional Journal Information:
Journal Volume: 318; Journal Issue: C; Related Information: CHORUS Timestamp: 2017-10-09 22:05:53; Journal ID: ISSN 0045-7825
Publisher:
Elsevier
Country of Publication:
Netherlands
Language:
English

Citation Formats

Na, SeonHong, and Sun, WaiChing. Computational thermo-hydro-mechanics for multiphase freezing and thawing porous media in the finite deformation range. Netherlands: N. p., 2017. Web. doi:10.1016/j.cma.2017.01.028.
Na, SeonHong, & Sun, WaiChing. Computational thermo-hydro-mechanics for multiphase freezing and thawing porous media in the finite deformation range. Netherlands. doi:10.1016/j.cma.2017.01.028.
Na, SeonHong, and Sun, WaiChing. 2017. "Computational thermo-hydro-mechanics for multiphase freezing and thawing porous media in the finite deformation range". Netherlands. doi:10.1016/j.cma.2017.01.028.
@article{osti_1398809,
title = {Computational thermo-hydro-mechanics for multiphase freezing and thawing porous media in the finite deformation range},
author = {Na, SeonHong and Sun, WaiChing},
abstractNote = {},
doi = {10.1016/j.cma.2017.01.028},
journal = {Computer Methods in Applied Mechanics and Engineering},
number = C,
volume = 318,
place = {Netherlands},
year = 2017,
month = 5
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on February 27, 2018
Publisher's Accepted Manuscript

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  • No abstract prepared.
  • Geomechanical alteration of porous media is generally ignored for most shallow subsurface applications, whereas CO 2 injection, migration, and trapping in deep saline aquifers will be controlled by coupled multifluid flow, energy transfer, and geomechanical processes. The accurate assessment of the risks associated with potential leakage of injected CO 2 and the design of effective injection systems requires that we represent these coupled processes within numerical simulators. The objectives of this study were to develop a coupled thermal-hydro-mechanical model into a single software, and to examine the coupling of thermal, hydrological, and geomechanical processes for simulation of CO 2 injectionmore » into the subsurface for carbon sequestration. A numerical model is developed to couple nonisothermal multiphase hydrological and geomechanical processes for prediction of multiple interconnected processes for carbon sequestration in deep saline aquifers. The geomechanics model was based on Rigid Body-Spring Model (RBSM), one of the discrete methods to model discontinuous rock system. Poisson’s effect that was often ignored by RBSM was considered in the model. The simulation of large-scale and long-term coupled processes in carbon capture and storage projects requires large memory and computational performance. Global Array Toolkit was used to build the model to permit the high performance simulations of the coupled processes. The model was used to simulate a case study with several scenarios to demonstrate the impacts of considering coupled processes and Poisson’s effect for the prediction of CO 2 sequestration.« less
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  • We have studied the freezing and melting of {sup 3}He confined in several porous media with very different structures. These include Vycor glass, which has very small pores with a rather narrow size distribution, a silica aerogel with a much more open geometry and a wider range of pore sizes, and an alumina membrane with larger but non-intersecting pores. We measured the velocity and attenuation of ultrasonic waves, which allowed us to detect the decoupling of any superfluid in the pores as well as the modulus changes associated with freezing and melting. We find that the shift of the meltingmore » curve due to confinement is smaller in the aerogel than in Vycor, but the hysteresis between freezing and melting is similar. The effects of confinement are very small for the alumina membrane and hysteresis is only observed at the lowest pressures.« less