Abstract The vanadium crossover through the membrane can have a significant impact on capacity of redox flow battery (VFB) over long-term charge–discharge cycling. different ions move unsymmetrically and this leads to build-up in one half-cell with corresponding decrease other. In paper, dynamic model is developed based mechanisms (diffusion, migration electro osmosis) for each four ions, water...

Phase balancing is a classical optimization problem in power distribution grids that involve phase swapping of the loads and generators to reduce loss. The non-linear integer and, hence, it usually solved using heuristic algorithms. This paper proposes mathematical reformulation transforms phase-balancing low-voltage networks into mixed-integer convex quadratic model. To consider both conventio...

In multicomputers that utilize circuit switching or wormhole routing, communication overhead depends largely on link contention-the variation due to distance between nodes is negligible. This has a major impact on the load balancing problem. In this case there are some nodes with excess load (sources) and others with deficit load (sinks) and it is required to find a matching of sources to sinks...

We review a nonlinear balancing approach presented in 2000. Unlike the method introduced by Scherpen (1994), which requires the solution of PDE’s, the novel method is computationally efficient and works also for unstable systems. First, we argue that a generalization for balancing nonlinear systems should be based upon three principles: 1) Balancing should be defined with respect to a nominal f...

Detailed chemistry-based computational fluid dynamics (CFD) simulations are computationally expensive due to the solution of underlying chemical kinetics system ordinary differential equations (ODEs). Here, we introduce a novel open-source library aiming at speeding up such reactive flow using OpenFOAM, an C++ software for CFD. First, our dynamic load balancing model DLBFoam (Tekg\"ul et al., 2...

We develop a synthetic trace generation model that captures two salient features of IP destination address traces that are critical to the performance of Internet forwarding systems. First, the model characterizes temporal locality of the aggregate traffic. Second, it incorporates flows as the result of large files transmitted over high-speed links. We achieve the two goals by integrating the f...

On simulating an existing highway network, traffic engineers and planners use existing traffic counts which may be collected during different times and days. On simulating a future highway network, they use future intersection volumes post-processed from projected counts or travel demand models. For both cases, an up link volume is usually not balanced with a down link volume in a highway netwo...

We speculate that computational exchanges will evolve from short-lived, intermittent transactions to long-lived flows—repeated transfers of information, constrained in space, time, and domain, from one network point to another. Flows whose lifespans are measured in hours to months will be common and their delivery and manipulation will rank, as elements of infrastructure, equal in importance to...