本文对一前弯多翼离心风机的内流场进行了三维数值分析.结果显示蜗壳内部的最大压力沿着轴线方向分布在不同的圆周位置,叶轮内部蜗舌上游区域存在着进口旋涡,蜗舌附近存在着明显的从叶片出口到进口的逆向回流,蜗舌间隙中存在着间隙涡,本文同时给出了一些典型位置上的速度和静压沿轴向的分布曲线,为验证本计算方法的可靠性,计算的流量和压力特性曲线和实验结果进行了比较,吻合良好.
参考文献
| [1] | Susumu Yamazaki;Katsuhiko Hashimoto;Yoshinori Fukasaku .Influence of Shape Change of Impeller and Scroll in the Axial Direction on Performance and Noise for Multiblade Blower[J].JSME International Journal Series B:Fluids and Thermal Engineering,1997(63):125-129. |
| [2] | Shigetoshi YAMAMOTO;Fumiyasu Kuratani .A Study on the Performance Improvement of Multiblade Fans[J].JSME International Journal Series B:Fluids and Thermal Engineering,1999(65):220-226. |
| [3] | Sandra Velarde-Suarez;Rafael Ballesteros-Tajadura;Carlos Santolaria-Morros;Jose Gonzalez-Perez .Unsteady Flow Pattern Characteristics Downstream of a Forward-Curved Blades Centrifugal Fan[J].Journal of Fluids Engineering: Transactions of the ASME,2001(2):265-270. |
| [4] | J JIm;Y J Moon;Y D Choi.Experimental Measurements of the Three-dimensional Flow Field in Sirocco Fan[M].The Fifth Asian International Conference on Fluid Machinery, Seoul, Korea,1997:803-808. |
| [5] | Tsutomu Adachi;Naohiro Sugita;Satoshi Ohomori.Study on the Design of Impeller and Volute Casing of a Sirocco Fan[A].北京,2002:198-205. |
| [6] | 王军 .空调风机内流特性研究[D].武汉:华中科技大学,2002. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%