Abstract: Proper orthogonal decomposition (POD) has been utilized for well over a decade to study turbulence and cyclic variation of flow and combustion properties in internal combustion engines. In addition, POD is useful to quantitatively compare multi-cycle in-cylinder measurements with numerical simulations (Large-eddy simulation, LES). However, the application can be daunting and physical interpretation of POD can be ambiguous. In this paper, the mathematical procedure of POD is described conceptually and a compact MATLAB® code is provided. (Details are provided in a forthcoming paper (accepted) in the International Journal of Engine Research.
Description: This is a free Matlab (R) code that can be used to perform Proper Orthogonal Decomposition of vector fields. Scalar fields can be handled after minor editing.
