[HTML][HTML] Physics informed neural networks: A case study for gas transport problems
Physics informed neural networks have been recently proposed and offer a new promising
method to solve differential equations. They have been adapted to many more scenarios …
method to solve differential equations. They have been adapted to many more scenarios …
Nonlinear dynamic behavior analysis of dual-rotor-bearing systems with looseness and rub–impact faults
The nonlinear dynamic behaviors of dual-rotor-bearing systems with looseness and rub–
impact faults are discussed in this paper. The dual-rotor-bearing system with looseness and …
impact faults are discussed in this paper. The dual-rotor-bearing system with looseness and …
Efficient wildland fire simulation via nonlinear model order reduction
We propose a new hyper-reduction method for a recently introduced nonlinear model
reduction framework based on dynamically transformed basis functions and especially well …
reduction framework based on dynamically transformed basis functions and especially well …
Transitions from monotonicity to chaos in gas mixture dynamics in pipeline networks
The blending of hydrogen generated using clean energy into natural gas pipeline networks
is proposed in order to utilize existing energy systems for their planned lifetimes while …
is proposed in order to utilize existing energy systems for their planned lifetimes while …
On snapshot-based model reduction under compatibility conditions for a nonlinear flow problem on networks
B Liljegren-Sailer, N Marheineke - Journal of Scientific Computing, 2022 - Springer
This paper is on the construction of structure-preserving, online-efficient reduced models for
the barotropic Euler equations with a friction term on networks. The nonlinear flow problem …
the barotropic Euler equations with a friction term on networks. The nonlinear flow problem …
Equal-weight and rank-sum-weight-based systematic diminution of higher-order continuous systems using grey wolf optimisation
The order-diminution techniques are adopted in various fields of engineering and
applications to reduce the order of systems from higher-order to desired lower-order. In this …
applications to reduce the order of systems from higher-order to desired lower-order. In this …
Optimal Control of Transient Flows in Pipeline Networks with Heterogeneous Mixtures of Hydrogen and Natural Gas
We formulate a control system model for the distributed flow of mixtures of highly
heterogeneous gases through large-scale pipeline networks with time-varying injections of …
heterogeneous gases through large-scale pipeline networks with time-varying injections of …
emgr – EMpirical GRamian Framework Version 5.99
C Himpe - ACM Transactions on Mathematical Software, 2023 - dl.acm.org
Version 5.99 of the empirical Gramian framework–emgr–completes a development cycle
which focused on parametric model order reduction of gas network models while preserving …
which focused on parametric model order reduction of gas network models while preserving …
Error analysis for Galerkin-BDF discretizations of DAEs with elliptic operator constraints
D Groh, C Tischendorf - Journal of Computational and Applied Mathematics, 2023 - Elsevier
We are interested in a convergent numerical discretization scheme for nonlinear differential
algebraic equations (DAEs) coupled with elliptic constraints. The dynamics of flow networks …
algebraic equations (DAEs) coupled with elliptic constraints. The dynamics of flow networks …
Linear System Analysis and Optimal Control of Natural Gas Dynamics in Pipeline Networks
We derive a linear system of ordinary differential equations (ODEs) to approximate the
dynamics of natural gas in pipeline networks. Although a closed-form expression of the …
dynamics of natural gas in pipeline networks. Although a closed-form expression of the …