教師資料查詢 | 類別: 會議論文 | 教師: 牛仰堯 NIU, YANG-YAO (瀏覽個人網頁)

標題:可調式算則在空蝕現象的模擬
學年102
學期1
發表日期2013/12/05
作品名稱可調式算則在空蝕現象的模擬
作品名稱(其他語言)
著者牛仰堯
作品所屬單位淡江大學航空太空工程學系
出版者新竹市清華大學
會議名稱第一屆兩岸流體力學研討會
會議地點新竹, 臺灣
摘要The purpose is to develop an unsteady compressible multiphase flow cavitation numerical model. As we know, capturing different fluid interface and simulating phase change process are still a great challenge in the calculation analysis of multiphase flow. This paper use mixing conservation equations of multiphase compressible Navier-Stokes as governing equations. we adopt preconditioned method to simulate phase change process. Numerical methods are taken Precondition
method by Weiss and smith et al developed. And we adopt Roe’s flux splitting method to deal with flux discretization in space. A dual-time implicit formulation with 4-order Runge-Kutta method is employed to accommodate the inherently unsteady physics.
The program will enable the numerical stability and computation time obtained a better balance. In this thesis, examples of verifications are 1-d nozzle of the flow path and 2-d blunt body cavitation analysis and the results compared with the experimental data can obtain satisfactory for verification.
關鍵字Two-phase flow;Cavitation;Preconditioning
語言中文
收錄於
會議性質兩岸
校內研討會地點
研討會時間20131205~20131205
通訊作者
國別中華民國
公開徵稿Y
出版型式
出處第一屆兩岸流體力學研討會會議手冊
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