武汉科技大学学报（自然科学版）
武漢科技大學學報（自然科學版）
무한과기대학학보（자연과학판）
JOURNAL OF WUHAN UNIVERSITY OF SCIENCE AND TECHNOLOGY(NATURAL SCIENCE EDITION)
2015年
2期
129-133
,共5页
通海阀%噪声%大涡模拟%Lighthill声理论%CFX
通海閥%譟聲%大渦模擬%Lighthill聲理論%CFX
통해벌%조성%대와모의%Lighthill성이론%CFX
sea suction valve%noise%LES%Lighthill theory%CFX
基于大涡模拟方法，采用 C FX 软件对某型通海阀的噪声进行数值模拟分析。选择大涡模拟中的WALE亚格子模型，运用前处理软件ICEM对通海阀三维模型进行网格划分，根据大涡模拟要求和实际使用情况设置边界条件。计算结果表明，通海阀低频噪声声能较大，高频部分所占比重较小，这与实际相符，验证了数值计算的准确性；相对于工业企业环境噪声标准，该阀门噪声的声压级略偏大。
基于大渦模擬方法，採用 C FX 軟件對某型通海閥的譟聲進行數值模擬分析。選擇大渦模擬中的WALE亞格子模型，運用前處理軟件ICEM對通海閥三維模型進行網格劃分，根據大渦模擬要求和實際使用情況設置邊界條件。計算結果錶明，通海閥低頻譟聲聲能較大，高頻部分所佔比重較小，這與實際相符，驗證瞭數值計算的準確性；相對于工業企業環境譟聲標準，該閥門譟聲的聲壓級略偏大。
기우대와모의방법，채용 C FX 연건대모형통해벌적조성진행수치모의분석。선택대와모의중적WALE아격자모형，운용전처리연건ICEM대통해벌삼유모형진행망격화분，근거대와모의요구화실제사용정황설치변계조건。계산결과표명，통해벌저빈조성성능교대，고빈부분소점비중교소，저여실제상부，험증료수치계산적준학성；상대우공업기업배경조성표준，해벌문조성적성압급략편대。
On the basis of large eddy simulation(LES) ,the numerical simulation and noise analysis of a sea suction valve was carried out by CFX software .WALE subgrid eddy viscosity model in LES was selected and pre‐processing software ICEM was adopted in mesh generation for the 3D model of the sea suction valve .Boundary conditions were set according to the demands of LES and actual usage . Simulation results show that the sound energy of low frequency noise is larger and the high frequency noise accounts for a small proportion of the valve’s noise ,w hich is consistent with the actual situation and verifies the accuracy of the numerical calculation .Compared to the noise standard for industrial enterprise environment ,the sound pressure level of the valve’s noise is a little higher .
