一种导管螺旋桨非定常干扰流CFD方法_朱敏.pdfVIP

41 Vol. 41 No. 2011 5 Aeronautical Com puting Techn ique M ay. 2011 CFD 朱 敏, 杨旭东 (西北工业大学翼型叶栅国家重点实验室, 陕西 西安 710072) : 基于雷诺平均 NavierOStokes控制方程和非结构网格旋转/静止滑移面技术, 开 了导管 与螺旋桨动 /静部件干扰的非定常流及性能预测数值模拟方法研究提出了静止与旋转域的多块 网格布局策略及转/静滑移面技术, 研究了导管壁面与螺旋桨桨梢间隙的网格布局形式, 有效解决 了螺旋桨旋转流及螺旋桨与导管干扰计算问题典型敞开桨与导管螺旋桨算例的数值模拟结果 与实验值符合一致, 研究结果表明: 所发 的导管螺旋桨 CFD 分析方法是实用有效的 : NavierOStokes方程; 转/静滑移面; 非结构网格; 螺旋桨; 导管螺旋桨 : TP211 : A : 1671O654X( 2011) 0 O0042O0 U nsteady In teracting Flow Analy sis of Ducted P ropeller B ased on CFD M ethod ZHU M in, YANG XuOdong (N ationalK ey Laboratory of Science and Technology onAerodynam icD esign and Research, N orthw estern Polytechnical University, ican 710072, China) Abs tract: Based on theN avierOStokes equations and the sliding patchedOzone interface technology, com- b ined w ith the technology of the unstructured grid generation, the aerodynam ic analysis of the unsteady stator/ rotor interacting flow and the performance prediction of a ducted propellerw ere carried out in this paper. Based on sliding patchedO zone interface technology, the multiOblock grid w h ich included static and rotating dom ain w as proposed. The grid distribution of the clearance betw een the propeller blade tip and the duct w allw as studied. On th is basic, the aerodynam ic analysis of a propeller flow and a ducted propeller interacting flow w ere mi plemented. Finally, the num erical smi ulating of the propeller and the ducted propellerw ere in good agreement to the expermi ental resu lts, w