膨脹波不存在 的英文怎麼說
中文拼音 [péngzhàngbōbùcúnzài]
膨脹波不存在
英文
expansion wave- 膨 : 動詞(物體的長度或體積增加) expand; swell
- 脹 : 動詞1. (膨脹) expand; dilate; inflate 2. (脹大) swell; distend; bloat
- 波 : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
- 不 : 名詞[書面語] (剁物所用的木墩) a block of wood
- 存 : 動詞1 (存在; 生存) exist; live; survive 2 (儲存; 保存) store; keep 3 (蓄積; 聚集) accumulat...
- 膨脹 : expand; swell; dilate; inflate; puff; bulge; inflation; expansion; dilatation; buckling; swelling...
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Because euler equations have disconnected solutions named shock wave in numerical simulation flow field, and to make sure the disconnected solutions not expanding or vanishing among parallel computation sub - domains, there must be certain connections in the numerical value variable among the sub - domains
由於在歐拉方程數值模擬求解流場區域內存在間斷解即激波,而計算流體力學并行數值計算是在分區的基礎上進行的,為了使流場區域內的間斷解不因分區并行計算而膨脹或消失,分區之間的數值變量必然存在著一定的聯系。From the past research work, it has been known that the main mechanisms of spectral lines broadening in the atmospheres of stars are doppler broadening, spectral lines broadening by rotation and expending, pressure broadening ( stark broadening ), natural broadening, spectral lines broadening in magnetic field, sonic waves and alfv e n waves broadening, etc. but it is not enough to explain the recent observation phenomena by above theories of spectral lines broadening
以往的研究已經判明,在恆星大氣內譜線致寬的主要機制是多普勒致寬、自轉源或膨脹源引起的致寬、壓力致寬(斯塔克致寬) 、自然致寬、磁場引起的加寬、聲波及阿爾文波致寬等。然而,已有的譜線致寬理論不足以解釋最近的一些觀測現象,仍存在觀測值與理論值之間的差異。
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