航空兵器
航空兵器
항공병기
HANGKONG BINGQI
2013年
3期
35-40
,共6页
气动矢量喷管%大落压比%推力系数%矢量角
氣動矢量噴管%大落壓比%推力繫數%矢量角
기동시량분관%대락압비%추력계수%시량각
fluidic thrust-vectoring nozzle%high NPR%thrust ratio%vector angle
为了提高气动矢量喷管在大落压比下的综合气动性能,在双喉道气动矢量喷管的基础上提出了一种适合于在大落压比下工作的气动矢量喷管,利用数值仿真对其流动特征和关键几何参数的影响规律进行了研究。结果表明提出的气动矢量喷管方案具有相对较高的综合气动性能。
為瞭提高氣動矢量噴管在大落壓比下的綜閤氣動性能,在雙喉道氣動矢量噴管的基礎上提齣瞭一種適閤于在大落壓比下工作的氣動矢量噴管,利用數值倣真對其流動特徵和關鍵幾何參數的影響規律進行瞭研究。結果錶明提齣的氣動矢量噴管方案具有相對較高的綜閤氣動性能。
위료제고기동시량분관재대락압비하적종합기동성능,재쌍후도기동시량분관적기출상제출료일충괄합우재대락압비하공작적기동시량분관,이용수치방진대기류동특정화관건궤하삼수적영향규률진행료연구。결과표명제출적기동시량분관방안구유상대교고적종합기동성능。
@@@@In order to improve the synthetical performance of fluidic thrust-vectoring nozzle working at high nozzle pressure ratios (NPR), a design concept of a high NPR fluidic thrust-vectoring nozzle is proposed based on dual-throat thrust-vectoring nozzle,and numerical simulations are conducted to investi-gate the flow characteristics and the effects of key design parameters on nozzle performances .Results show that the proposed design in this paper has a higher synthetical fluidic performance .