基于機(jī)器學(xué)習(xí)的非定常流場(chǎng)網(wǎng)格自適應(yīng)
空氣動(dòng)力學(xué)學(xué)報(bào)
頁(yè)數(shù): 13 2022-06-29
摘要: 現(xiàn)有針對(duì)非定常流場(chǎng)數(shù)值模擬的網(wǎng)格自適應(yīng)方法,通常每隔一段時(shí)間步就進(jìn)行一次網(wǎng)格調(diào)整,增加了計(jì)算復(fù)雜度和精度損失。針對(duì)這一問(wèn)題,本文基于間斷伽遼金(discontinuity Galerkin, DG)有限元法提出了結(jié)合BPNN(backpropagation neural network)和MMPDE(moving mesh partial differential equati...