Aliasing low frequency in Energy Spectrum -- CFD Online Discussion Forums

July 31, 2021, 13:48	Aliasing low frequency in Energy Spectrum	#1
MardyOwens New Member N/A Join Date: Feb 2021 Posts: 22 Rep Power: 5	Hi, I am running a case in a CFD LES software with implicit filter. Have you ever experienced an aliasing due to the grid? The spectra in frequency with a coarser grid seems to have bigger value of energy then the same case with a finer grid. Can this be due to an aliasing caused by the grid?

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