...D.A.S. Rees Purpose The purpose of this paper is to discuss the need to attend correctly to the accuracy and the manner in which the value of the streamfunction is determined when two or more impermeable boundaries are present. This is discussed within the context of the paper by Nandalur et...

... of the dependent variable in the parabolic PDE for the evaluation of the time derivative. As will be demonstrated later, this key step is responsible for improving the accuracy of ITMOL over its predecessor TMOL. Throughout the paper, the theoretical properties of ITMOL, such as consistency, stability, convergence...

... (energy) over the entire data span. © Emerald Group Publishing Limited 2014 Accuracy Empirical Mode Decomposition Hilbert spectrum Hilbert-Huang Transform Multi-scale Streamflow Hydrological cycle processes and water resource systems are extensively influenced by climate...

... and the challenges faced in the numerical simulation are outlined. The methods that may be used to meet these challenges are presented in terms of grid, solution strategies, multiscale modeling and combined mechanisms. The models employed must be validated and the accuracy of the simulation results established...

... and Runge‐Kutta method as a time integrator and exhibits high accuracy as seen from the comparison with the exact solutions. Design/methodology/approach The study uses a meshless method of lines. This method uses radial basis functions for spatial derivatives and Runge‐Kutta method as a time integrator...

..., and indeed driven by experimental data, to obtain accurate, valid and realistic numerical predictions. Findings The paper demonstrates validation and accuracy of numerical simulation. Originality/value This paper is an important first step in combining experiments and simulation for complex thermal...

.... The accuracy of turbulence models for the swirling flow in draft tubes will be the subject of a future paper. The geometry of the draft tube was taken from the model turbine at the IMHEF laboratory at EPFL (Sottas and Ryhming, 1993). The flow in this draft tube has been analysed by several groups (Sottas...