Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Pachalieva A"'
Autor:
Marcato, Agnese, Santos, Javier E., Pachalieva, Aleksandra, Gao, Kai, Hill, Ryley, Rougier, Esteban, Kang, Qinjun, Hyman, Jeffrey, Hunter, Abigail, Chua, Janel, Lawrence, Earl, Viswanathan, Hari, O'Malley, Daniel
Understanding material failure is critical for designing stronger and lighter structures by identifying weaknesses that could be mitigated. Existing full-physics numerical simulation techniques involve trade-offs between speed, accuracy, and the abil
Externí odkaz:
http://arxiv.org/abs/2411.08354
Autor:
Schwerdtner, Paul, Mohan, Prakash, Pachalieva, Aleksandra, Bessac, Julie, O'Malley, Daniel, Peherstorfer, Benjamin
This work introduces an online greedy method for constructing quadratic manifolds from streaming data, designed to enable in-situ analysis of numerical simulation data on the Petabyte scale. Unlike traditional batch methods, which require all data to
Externí odkaz:
http://arxiv.org/abs/2409.02703
Autor:
Shinkle, Emily, Pachalieva, Aleksandra, Bahl, Riti, Matin, Sakib, Gifford, Brendan, Craven, Galen T., Lubbers, Nicholas
Coarse-graining is a molecular modeling technique in which an atomistic system is represented in a simplified fashion that retains the most significant system features that contribute to a target output, while removing the degrees of freedom that are
Externí odkaz:
http://arxiv.org/abs/2406.12112
Autor:
Pachalieva, Aleksandra, Hyman, Jeffrey D., O'Malley, Daniel, Viswanathan, Hari, Srinivasan, Gowri
We perform a set of flow and reactive transport simulations within three-dimensional fracture networks to learn the factors controlling mineral reactions. CO$_2$ mineralization requires CO$_2$-laden water, dissolution of a mineral that then leads to
Externí odkaz:
http://arxiv.org/abs/2312.13451
Autor:
Sorokin, Aleksei G., Pachalieva, Aleksandra, O'Malley, Daniel, Hyman, James M., Hickernell, Fred J., Hengartner, Nicolas W.
Limiting the injection rate to restrict the pressure below a threshold at a critical location can be an important goal of simulations that model the subsurface pressure between injection and extraction wells. The pressure is approximated by the solut
Externí odkaz:
http://arxiv.org/abs/2310.13765
Autor:
Pachalieva, Aleksandra A., Sweeney, Matthew R., Viswanathan, Hari, Stein, Emily, Leone, Rosie, Hyman, Jeffrey D.
We performed a set of numerical simulations to characterize the interplay of fracture network topology, upscaling, and mesh refinement on flow and transport properties in fractured porous media. We generated a set of generic three-dimensional discret
Externí odkaz:
http://arxiv.org/abs/2302.10994
Autor:
Karra, Satish, Mehana, Mohamed, Lubbers, Nicholas, Chen, Yu, Diaw, Abdourahmane, Santos, Javier E., Pachalieva, Aleksandra, Pavel, Robert S., Haack, Jeffrey R., McKerns, Michael, Junghans, Christoph, Kang, Qinjun, Livescu, Daniel, Germann, Timothy C., Viswanathan, Hari S.
Publikováno v:
Sci. Rep. 13, 16262 (2023)
Throughout computational science, there is a growing need to utilize the continual improvements in raw computational horsepower to achieve greater physical fidelity through scale-bridging over brute-force increases in the number of mesh elements. For
Externí odkaz:
http://arxiv.org/abs/2209.09811
Autor:
Jeffrey D. Hyman, Alexis Navarre‐Sitchler, Matthew R. Sweeney, Aleksandra Pachalieva, James W. Carey, Hari S. Viswanathan
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 25, Iss 7, Pp n/a-n/a (2024)
Abstract We perform a set of reactive transport simulations in three‐dimensional fracture networks to characterize the impact of geochemical reactions on flow channelization. Flow channelization, a frequently observed phenomenon in porous and fract
Externí odkaz:
https://doaj.org/article/a1d43f34bdd14fccbafe96128117c1d8
Avoiding over-pressurization in subsurface reservoirs is critical for applications like CO2 sequestration and wastewater injection. Managing the pressures by controlling injection/extraction are challenging because of complex heterogeneity in the sub
Externí odkaz:
http://arxiv.org/abs/2206.10718
The success of lattice Boltzmann methods has been attributed to their mesoscopic nature as a method derivable from a physically consistent microscopic model. Original lattice Boltzmann methods were Boltzmann averages of an underlying lattice gas. In
Externí odkaz:
http://arxiv.org/abs/2109.05009