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SolidWorks離心泵流場的實驗分析與理論模擬+CAD圖紙

時間:2019-06-16 20:34來源:畢業論文
采用SolidWorks軟件建立離心泵的三維實體模型,為了方便分析,在離心泵三維實體模型的基礎上,將離心泵的進口流域、葉輪流域、蝸殼流域分別進行三維實體建模;然后利用ANSYS ICEM C

摘要:離心泵是一種應用非常廣泛的通用機械,但存在一個普遍問題就是效率低下。近幾年,隨著計算機技術的飛速發展,CFD技術在對離心泵內部流場進行數值模擬和了解其內部流場的變化有著非常重要的作用,對離心泵的結構改進,提供其效率也有著非常重要的意義。36417
本文首先采用SolidWorks軟件建立離心泵的三維實體模型,為了方便分析,在離心泵三維實體模型的基礎上,將離心泵的進口流域、葉輪流域、蝸殼流域分別進行三維實體建模;然后利用ANSYS ICEM CFD 14.0分別對這三個流域進行網格劃分,并設定邊界,合并網格;其次,采用軟件FLUENT14.0對103型耐腐蝕離心泵進行內部的流場數值模擬,得到不同工況下離心泵內部流場的不同時刻的速度分布和壓力分布,分析離心泵的內部流場流動規律,并進行性能預測;將通過PIV實驗得到的離心泵速度場與模擬值進行比較,驗證該方法模擬離心泵內部流場流動的正確性及可行性。在這個基礎上對離心泵進行結構改進,然后進行比較分析。
畢業論文關鍵詞:離心泵;三維建模;理論模擬;PIV實驗
The experimental analysis and theoretical simulation  for the flow field of the Centrifugal pump
Abstract:Centrifugal pump is a kind of wide application of general machinery,but a common problem is the low efficiency. In recent years, with the rapid development of computer technology, it is very important to numerically simulate and understand the change of the internal flow field in the internal flow field of centrifugal pump by CFD technology. To improve the structure of centrifugal pump and provide its efficiency also have very important significance. 源`自*六:維.論^文'網www.aftnzs.live
At first, the paper set up  3d entity model of centrifugal pump based on the solidworks, In order to facilitate analysis, the paper set up separately 3d entity models of centrifugal pump import basin, impeller basin and volute basin on this basis. Then  mesh the three basin, and set the boundary, merge the gridby using ANSYS ICEM CFD 14.0. Secondly, the numerical simulation of 103 type corrosion-resistan centrifugal pump for the internal flow field by using the software of FLUENT14.0 can get the centrifugal pump internal flow field of velocity distribution and pressure distribution of the different working conditions and time. through this, we can analyze the law of the internal flow field in centrifugal pump and predict performance. Through the comparison between the velocity field of centrifugal pump that geting by PIV experiment and value of the simulation, validating the correctness and feasibility of the method simulation of internal flow field in centrifugal pump.Based on it, we improve the structure of centrifugal pump, and then compare and analysis.
Keywords:Centrifugal pump; 3D modeling; theoretical simulation; PIV experiment
 目錄
1 緒論    1
1.1 本課題的研究背景及意義    1
1.2 國內外研究現狀    1
1.2.1 計算流體力學(CFD)的發展    1
1.2.2 CFD技術在離心泵內部流場模擬研究的現狀    2
1.2.3 PIV技術及其在離心泵實驗分析的應用    3
1.3 本課題研究內容    3
1.4本章小結    4
2 離心泵內部流場的理論基礎    5
2.1 流體力學與計算流體力學理論基礎    5
2.1.1 流體力學基本控制方程    5 源`自*六:維.論^文'網www.aftnzs.live
2.2 湍流模型    6
2.3 離心泵內部流場的數值模擬基礎    9
2.3.1 數值模擬方法    9
2.3.2 基于FVM的流體力學方程離散方法    9
2.3.3 FVM的求解方法    9
2.4 本章小結    9
3 離心泵的三維實體建模    10 SolidWorks離心泵流場的實驗分析與理論模擬+CAD圖紙:http://www.aftnzs.live/jixie/20190616/34855.html
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