jet JET =Joint European Torus 欧洲联合核变实验装置。 n. 1.【矿物】煤玉,黑色大理石。 2.乌黑发亮的颜色。 adj. 1.煤玉制的,黑色大理石制的。 2.乌黑发亮的。 her jet hair 她那一头乌油油的秀发。 jet2 n. 1.喷射,喷出;【物理学】喷注,气流;射流。 2.喷口,喷嘴;喷射器。 3.【航空】喷气式发动机;喷气[喷射]式飞机。 4.喷出物;〔比喻〕喷流式的涌出物。 an electron jet电子束,电子流。 a plasma jet等离子流。 a nozzle jet汽嘴。 travel by jet 乘喷气式飞机旅行。 talk in a jet滔滔不绝地谈话。 a jet of water sent up by a fountain 喷泉中喷出的水束。 at a single jet一想就懂。 at the first jet由于一时的冲动。 vt. (-tt-) 1.喷射出(水流等)。 2.用喷气式飞机载送。 vi. 1.喷射。 2.乘坐喷气式飞机。 3.飞速移动。 adj. 1.喷气式(发动机)推进的。 2.用喷气式飞机的。 3.迅速的,飞快的。
Large eddy simulation of rectangular jets on the effects of various inlet disturbance frequencies 入口扰动频率对矩形射流影响的大涡模拟
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 迄今为止,关于圆射流和矩形射流的研究较多,但平面射流的数值成果,尤其是对湍流研究具有指导意义的dns数据,仍相对较少。
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 文中对二维气粒两相平面尾迹流场、二维气粒两相平面射流流场以及三维气粒两相矩形射流流场中的气相流场进行了大涡模拟、对颗粒运动扩散采用lagrangian模拟研究后,取得了一系列具有重要的理论意义和实际意义的研究成果。
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气相时均流场的速度、湍流强度的空间分布规律,并就部分数值模拟结果与实验结果进行了对比研究;描述分析了气相流场湍流拟序结构,对流向、横向和展向三个方向旋涡的空间结构特点进行分析研究,并分析了流向涡随时间变化的发展、运动规律。