TY  - EJOU
AU  - Lucas, Peter  
AU  - Zuijlen, Alexander H. van 
AU  - Bijl, Hester  

TI  - An automated approach for solution based mesh adaptation to enhance numerical accuracy for a given number of grid cells Applied to steady flow on hexahedral grids
T2  - Computer Modeling in Engineering \& Sciences

PY  - 2009
VL  - 41
IS  - 2
SN  - 1526-1506

AB  - Mesh adaptation is a fairly established tool to obtain numerically accurate solutions for flow problems. Computational efficiency is, however, not always guaranteed for the adaptation strategies found in literature. Typically excessive mesh growth diminishes the potential efficiency gain. This paper, therefore, extends the strategy proposed by [Aftosmis and Berger (2002)] to compute the refinement threshold. The extended strategy computes the refinement threshold based on a user desired number of grid cells and adaptations, thereby ensuring high computational efficiency. Because our main interest is flow around wind turbines, the adaptation strategy has been optimized for flow around wind turbine airfoils. The proposed strategy was found to yield computationally efficient computations for flow around wind turbine airfoils as well as for other flow problems.
KW  - Solution based mesh adaptation
KW  -  computation refinement threshold
KW  -  hexahedral grids
KW  -  computational efficiency

DO  - 10.3970/cmes.2009.041.147