The utility model relates to a scale removing nozzle, which belongs to a scale removing nozzle using high-pressure water in a hot-rolling steel plate appliance. The front section of the inner hole of a nozzle body forms a forwards concave cone shape, and the inner of the nozzle body is ...
T.K. is supported in part by MEXT SPIRE, MEXT as ‘Priority Issue on post-K computer’ (Elucidation of the Fundamental Laws and Evolution of the Universe) and as ‘Program for Promoting Researches on the Supercomputer Fugaku’ (Toward a unified view of the universe: from large scale ...
The possibility of achieving substantial mixing enhancement, using noncircular nozzles, was demonstrated. It was shown that nozzle geometries containing sharp corners are beneficial for mixing purposes. By breaking the initial symmetry of the flow, one may also reduce the coherence of the large structu...
jet [英 [dʒet] 美 [dʒɛt] ] jet的意思、解释 过去式:jetted; 现在分词:jetting; 复数形式:jets; jet 基本解释 jet 名词喷气式飞机; 喷嘴,喷雾; 喷射流; 煤玉 不及物动词乘喷气式飞机; 射出 形容词黑玉制的或黑玉似的; 象炭一般黑的 ...
As basic models, we have considered the compressible versions of the Smagorinsky model, the mixed-scale model (which can be defined as a dynamic-type model) and the similarity model. The first two models are also supplemented with the similarity model or/and a selective function. Large-eddy ...
Acoustic source localization on a model engine jet with different nozzle configurations and wing installation The source distribution in the dual jets of a 1:10 scale jet engine model was investigated in a large anechoic facility. A linear microphone array was used... H Siller,J Knig,S Funke,...
Friction factor f is related to pumping power, and is given as the pressure difference between inlet and outlet of the domain, normalized by the average dynamic pressure within jet impingement nozzles. The data in this figure are provided for 4 V-ribs in positions 1, 2, 3, and 4 and 8...
In the initial region, jet velocity preserves its speed in a form of conus with a base at the nozzle exit. The highness of the conus (“Core” on Fig. 13) is independent of the jet velocity at the nozzle exit. Instead, it is proportional to its diameter and flow viscosity. Rajaratnam...
However, somewhere in the transition regime, the flame tip closes, and large-scale structures develop which wrinkle the flame. This is in contrast to the brush-type structure seen in the normal-gravity flames. The flame lifts off the nozzle tip, although the stand-off distance is almost half...
The relatively close agreement is evidence that the flow field data are pertinent to the description of the acoustic analogy model. A brief description is given of attempts to reduce jet noise without incurring an undue penalty in the loss of nozzle efficiency. Finally, the importance of good, ...