水池环境对水上飞机全机模型试验的影响研究
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航空工业高速水动力航空科技重点实验室

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211.7

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Study On The Influence of Tank Environment On The Test of Seaplane Model
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Key Laboratory of High-speed Aerodynamics, Aerospace Industry

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    摘要:

    目前国内还没有进行过水池环境对水上飞机全机模型试验的影响研究,为了研究水池环境对水上飞机全机模型试验结果的影响,本文在该领域首次采用同一个水上飞机全机模型在两个拖曳水池进行系列全机模型试验,研究了全机模型在两个拖曳水池的气动特性和水动特性,分析试验结果和环境差异,可得到结论:拖曳水池环境对全机模型的气动特性有明显影响,但通过对全机模型在每个试验水池中的气动特性进行气动力补偿,进行自由拖曳试验时可最大程度的避免试验环境对水阻力结果的干扰,从而获得较为满意的水阻力试验结果;拖曳水池边界效应中,阻塞效应对全机模型的气动特性影响最大,阻塞比2.51%相对阻塞比0.67%时全机模型气动阻力系数大0.1~0.2,升力系数大至少0.2;进行气动力补偿时选用典型的高速滑行状态来计算,故仅在对应速度时补偿效果达到了理论值,在其它速度会有一定偏离,导致试验结果也有一定的误差,但因误差较小,不会对试验结果造成明显的影响。本文研究成果可为我国水上飞机的模型水动试验和性能分析提供指导。

    Abstract:

    No research has been conducted on the impact of tank environment on the full-scale model test of seaplanes at present.In order to study the influence of the tank environment on the results of the seaplane model test, this paper, for the first time in this field, conducts a series of aircraft model tests using the same seaplane model in two towing tanks. The aerodynamic and hydrodynamic characteristics of the aircraft model in the two towing tanks were studied, and the test results were analyzed in relation to environmental differences. The conclusions drawn are as follows: The towing tank environment has a significant impact on the aerodynamic characteristics of the seaplane model, but by compensating the aerodynamic characteristics of the seaplane model in each towing tank during the test, the interference of the test environment on the water resistance results could be avoided, so as to obtain a more satisfactory water resistance test result. Among the boundary effects of the towing tank, the blockage effect has the greatest impact on the aerodynamic characteristics of the seaplane model. Compared with 2.51% relative blockage ratio 0.67%, the aerodynamic drag coefficient of the seaplane model is 0.1~0.2 larger, and the lift coefficient is at least 0.2.Because the typical high-speed coasting state is used for aerodynamic compensation to calculate, so the compensation effect is only achieved at the corresponding speed and produce some deviation at other speeds, resulting in a certain deviation in the test result, but it will not have a significant impact on the test result because the deviation is so small. The research findings can be used to provide guidance for model hydrodynamic tests and performance analysis of seaplanes in China.

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左仔滨,李成华. 水池环境对水上飞机全机模型试验的影响研究[J]. 科学技术与工程, , ():

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  • 收稿日期:2024-04-10
  • 最后修改日期:2024-05-30
  • 录用日期:2024-06-05
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