The flow fields of the impellers were calculated by solving three-dimensional Navier-Stokes equations. 對這兩個(gè)離心壓氣機葉輪內部流場(chǎng)進(jìn)行了三維粘性計算，給出了計算結果。
In this article, six kinds of reverse Brayton cycles of helium are studied analytically and the flow field of the header of their heat exchangers is simulated numerically. 本文正是基于上述考慮，選取了六種氦氣逆布雷頓制冷循環(huán)模式，并對其進(jìn)行了熱力學(xué)分析，詳細地討論并對比了各個(gè)循環(huán)模式的用能情況，同時(shí)還對回路中采用的換熱器封頭內部流場(chǎng)進(jìn)行了數值模擬。
