convergent tube 中文意思是什麼
convergent tube
解釋
收斂形管- convergent : adj. 1. 漸集一點的，會聚性的；包圍集中的。2. 【數學】收斂的。n. 【數學】收斂子；漸近分數。
- tube : n 1 管，筒；顏料管。2 管狀地下隧道；〈口語〉（倫敦的）地下鐵道。3 【炮】炮身；【汽鍋】鍋管；【解...
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Shock tube ; conical convergent section ; detonation ; finite volume tvd scheme
激波管收縮截面爆轟有限體積tvd格式 -
The numerical simulation of axisymmetric two - dimensional shock tube is studied, which has a conical convergent section, and its driving gas is the hot product of hydrogen oxygen detonation. finite volume tvd scheme is adopted and the mesh is local orthogonal. the primitive equations are euler s equations of multi - component flow. the new method of eliminating numerical oscillation at the interface of two materials is extended to two dimensions. the mechanical character of this shock tube is analyzed
對由前向爆轟產生驅動氣體並具有局部錐形收縮截面的軸對稱激波管利用兩相常比熱完全氣體的歐拉方程組和有限體積tvd格式在局部正交的網格上進行了二維數值模擬。將消除兩種介質界面處數值振蕩的新方法成功地推廣到二維情況。分析了該激波管的力學特性。 -
For conventional high - speed mass production of flexible tubes, the skirt of the tube must be obtained directly by extrusion with a thickness at least six times lower, under conditions so that it is difficult or even impossible, to control the action of the blowing agent in the screw, then in the convergent zone of the extruder, so that a skirt is obtained with a expanded extruded layer with significant irregularities in thickness, which does not make it possible to provide an acceptable industrial packaging
對于軟管的常規高速批量生產，必須通過將管的厚度擠壓到至少為原來的六倍以下來直接得到管裙，在這樣的情況下很難甚至不可能控制膨脹劑在螺桿中，然後在擠壓機收斂段的運動，這樣，獲得的管裙具有厚度明顯不規則的擠出層，其不可能提供可接受的工業包裝。
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