Search Results - "Srinivasan, Shriram"

A Generalized Darcy–Dupuit–Forchheimer Model with Pressure-Dependent Drag Coefficient for Flow Through Porous Media Under Large Pressure Gradients by Srinivasan, Shriram

“…Prior works have discussed the appearance of a ceiling flux for the generalized Darcy model, but there has been no such discussion on the Forchheimer model…”
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What is the gradient of a scalar function of a symmetric matrix? by Srinivasan, Shriram, Panda, Nishant

“…For a real valued function ϕ of a matrix argument, the gradient ∇ ϕ is calculated using a standard approach that follows from the definition of a Fréchet…”
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Model reduction for fractured porous media: a machine learning approach for identifying main flow pathways by Srinivasan, Shriram, Karra, Satish, Hyman, Jeffrey, Viswanathan, Hari, Srinivasan, Gowri

“…Discrete fracture networks (DFN) are often used to model flow and transport in fractured porous media. The accurate resolution of flow and transport behavior…”
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A machine learning framework for rapid forecasting and history matching in unconventional reservoirs by Srinivasan, Shriram, O’Malley, Daniel, Mudunuru, Maruti K., Sweeney, Matthew R., Hyman, Jeffrey D., Karra, Satish, Frash, Luke, Carey, J. William, Gross, Michael R., Guthrie, George D., Carr, Timothy, Li, Liwei, Viswanathan, Hari S.

“…We present a novel workflow for forecasting production in unconventional reservoirs using reduced-order models and machine-learning. Our physics-informed…”
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Physics-informed machine learning for backbone identification in discrete fracture networks by Srinivasan, Shriram, Cawi, Eric, Hyman, Jeffrey, Osthus, Dave, Hagberg, Aric, Viswanathan, Hari, Srinivasan, Gowri

“…The phenomenon of flow-channeling, or the existence of preferential pathways for flow in fracture networks, is well known. Identification of the channels…”
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Demand Response Analogues for Residential Loads in Natural Gas Networks by Hu, Fuyu, Sundar, Kaarthik, Srinivasan, Shriram, Bent, Russell

“…Demand response for electrical power networks is a mature field that has yielded efficiency and resilience benefits like managing the peaks and valleys of…”
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What is the gradient of a scalar function defined on a subspace of square matrices ? by Srinivasan, Shriram, Panda, Nishant

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Modeling and optimization of steady flow of natural gas and hydrogen mixtures in pipeline networks by Kazi, Saif R., Sundar, Kaarthik, Srinivasan, Shriram, Zlotnik, Anatoly

“…We extend the canonical problems of simulation and optimization of steady-state gas flows in pipeline networks with compressors to the transport of mixtures of…”
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Modeling and optimization of steady flow of natural gas and hydrogen mixtures in pipeline networks by Kazi, Saif R., Sundar, Kaarthik, Srinivasan, Shriram, Zlotnik, Anatoly

“…Here, we extend the canonical problems of simulation and optimization of steady-state gas flows in pipeline networks with compressors to the transport of…”
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Flow of “stress power-law” fluids between parallel rotating discs with distinct axes by Srinivasan, Shriram, Karra, Satish

“…The problem of flow between parallel rotating discs with distinct axes corresponds to the case of flow in an orthogonal rheometer and has been studied…”
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Matrix Diffusion in Fractured Media: New Insights Into Power Law Scaling of Breakthrough Curves by Hyman, Jeffrey D., Rajaram, Harihar, Srinivasan, Shriram, Makedonska, Nataliia, Karra, Satish, Viswanathan, Hari, Srinivasan, Gowri

“…We develop a theoretical model for power law tailing behavior of transport in fractured rock based on the relative dominance of the decay rate of the advective…”
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On the Existence of Steady-State Solutions to the Equations Governing Fluid Flow in Networks by Srinivasan, Shriram, Panda, Nishant, Sundar, Kaarthik

“…The steady-state solution of fluid flow in pipeline infrastructure networks driven by junction/node potentials is a crucial ingredient in various…”
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Operation of Natural Gas Pipeline Networks With Storage Under Transient Flow Conditions by Hari, Sai Krishna Kanth, Sundar, Kaarthik, Srinivasan, Shriram, Zlotnik, Anatoly, Bent, Russell

“…We formulate a nonlinear optimal control problem for intraday operation of a natural gas pipeline network that includes storage reservoirs. The dynamics of…”
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Numerical Solution of the Steady-State Network Flow Equations for a Nonideal Gas by Srinivasan, Shriram, Sundar, Kaarthik, Gyrya, Vitaliy, Zlotnik, Anatoly

“…We formulate a steady-state network flow problem for nonideal gas that relates injection rates and nodal pressures in the network to flows in pipes. For this…”
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A thermodynamic basis for the derivation of the Darcy, Forchheimer and Brinkman models for flows through porous media and their generalizations by Srinivasan, Shriram, Rajagopal, K.R.

“…In this study we use a general thermodynamic framework which appeals to the criterion of maximal rate of entropy production to obtain popular models due to…”
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Multiscale direction-splitting algorithms for parabolic equations with highly heterogeneous coefficients by Srinivasan, Shriram, Lazarov, Raytcho, Minev, Peter

“…In this paper we discuss two methods for upscaling of highly heterogeneous data for parabolic problems in the context of a direction splitting time…”
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Operation of Natural Gas Pipeline Networks With Storage Under Transient Flow Conditions by Hari, Sai Krishna Kanth, Sundar, Kaarthik, Srinivasan, Shriram, Zlotnik, Anatoly V., Bent, Russell Whitford

“…Here, we formulate a nonlinear optimal control problem for intraday operation of a natural gas pipeline network that includes storage reservoirs. The dynamics…”
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Matrix Diffusion in Fractured Media: New Insights Into Power Law Scaling of Breakthrough Curves by Hyman, Jeffrey D., Rajaram, Harihar, Srinivasan, Shriram, Makedonska, Nataliia, Karra, Satish, Viswanathan, Hari, Srinivasan, Gowri

“…Here, we develop a theoretical model for power law tailing behavior of transport in fractured rock based on the relative dominance of the decay rate of the…”
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Towards real-time forecasting of natural gas production by harnessing graph theory for stochastic discrete fracture networks by Dana, Saumik, Srinivasan, Shriram, Karra, Satish, Makedonska, Nataliia, Hyman, Jeffrey D., O'Malley, Daniel, Viswanathan, Hari, Srinivasan, Gowri

“…In this work, we compare hydrocarbon production curves obtained from a graph-based reduced-order model with the high-fidelity Discrete Fracture Network (DFN)…”
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Advancing Graph‐Based Algorithms for Predicting Flow and Transport in Fractured Rock by Viswanathan, H. S., Hyman, J. D., Karra, S., O'Malley, D., Srinivasan, S., Hagberg, A., Srinivasan, G.

“…Discrete fracture network (DFN) models are a powerful alternative to continuum models for subsurface flow and transport simulations because they explicitly…”
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