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实验研究在２００ＭＷ核供热堆（ＮＨＲ２００）水力学实验回路（ＨＲＨＴＬ２００）上完成，采用１∶１的实验本体，模拟条件为几何形状和雷诺数相同。研究了燃料组件入口节流孔板不同开孔直径（５０～１１０）条件下，燃料组件，节流孔板，进、出口格板，棒束及出口段的流动阻力特性，研究结果可直接用于ＮＨＲ２００的热工水力学设计。
The experimental study was carried out on a 200 MW nuclear reactor (NHR-200) hydraulics experimental circuit (HRHTL-200) using a 1: 1 experimental body with the same geometry and Reynolds number. The flow resistance characteristics of fuel assemblies, orifice plate, inlet and outlet grate, rod bundle and outlet section under different orifice diameters (50 ~ 110) were studied. Directly used in the thermal hydraulics design of NHR 200.