..., the proposed method is able to raise the computational accuracy significantly on condition of meeting the efficiency requirement. Originality/value This paper proposes an approach in which the optimal non-uniform grid that can avoid the issue of overfitting or underfitting is obtained. where...

... 2016 29 07 2016 © Emerald Publishing Limited 2017 Emerald Publishing Limited Licensed re-use rights only Lid-driven cavity Arc-shaped moving wall Irregular boundary Non-uniform grid g = gravitational field (m s^{−2) G = ghost node}...