jet JET =Joint European Torus 歐洲聯合核變實驗裝置。 n. 1.【礦物】煤玉,黑色大理石。 2.烏黑發亮的顏色。 adj. 1.煤玉制的,黑色大理石制的。 2.烏黑發亮的。 her jet hair 她那一頭烏油油的秀發。 jet2 n. 1.噴射,噴出;【物理學】噴注,氣流;射流。 2.噴口,噴嘴;噴射器。 3.【航空】噴氣式發動機;噴氣[噴射]式飛機。 4.噴出物;〔比喻〕噴流式的涌出物。 an electron jet電子束,電子流。 a plasma jet等離子流。 a nozzle jet汽嘴。 travel by jet 乘噴氣式飛機旅行。 talk in a jet滔滔不絕地談話。 a jet of water sent up by a fountain 噴泉中噴出的水束。 at a single jet一想就懂。 at the first jet由于一時的沖動。 vt. (-tt-) 1.噴射出(水流等)。 2.用噴氣式飛機載送。 vi. 1.噴射。 2.乘坐噴氣式飛機。 3.飛速移動。 adj. 1.噴氣式(發動機)推進的。 2.用噴氣式飛機的。 3.迅速的,飛快的。
Large eddy simulation of rectangular jets on the effects of various inlet disturbance frequencies 入口擾動頻率對矩形射流影響的大渦模擬
Up to now , studies about round and rectangular jets are prolific . however , numerical studies of plane jets , especially the dns ( direct numerical simulation ) data which bear profound significances on turbulence research , are considerably few 迄今為止,關于圓射流和矩形射流的研究較多,但平面射流的數值成果,尤其是對湍流研究具有指導意義的dns數據,仍相對較少。
Large eddy simulation of gas - particle two phase turbulence was carried out , such as simulation of two - dimensional gas - particle two phase wake , two - dimensional gas - particle two phase jet and three - dimensional gas - particle two phase rectangular jet . in these works , les was adopted to simulate gas phase flow and lagrangian approach was utilized to simulate the particles " motion . a series of significant and interesting results were obtained 文中對二維氣粒兩相平面尾跡流場、二維氣粒兩相平面射流流場以及三維氣粒兩相矩形射流流場中的氣相流場進行了大渦模擬、對顆粒運動擴散采用lagrangian模擬研究后,取得了一系列具有重要的理論意義和實際意義的研究成果。
At last , three - dimensional mathematical model of gas - particle two phase turbulence was established , and it was adopted to study the gas - particle two phase rectangular jet as well . the distribution of the time - averaged velocity and turbulence intensity was studied , and some of the simulation results were compared with the experimental results ; the coherent structure of flow field was described in the three direction , the evolution and motion of the eddies was discussed too ; the dispersion of fine particles in the three dimensional space was also investigated 全面地分析了矩形射流氣相時均流場的速度、湍流強度的空間分布規律,并就部分數值模擬結果與實驗結果進行了對比研究;描述分析了氣相流場湍流擬序結構,對流向、橫向和展向三個方向旋渦的空間結構特點進行分析研究,并分析了流向渦隨時間變化的發展、運動規律。