This paper evaluates the effect of innovative design modification on the performance of an orifice meter. The orifice meter of 10 mm plate thickness is considered as reference meter and the plate has been modified by changing the surface topology to curvature on both the sides of the orifice plate and the performance has been evaluated using CFD. The performance of the meter is evaluated in terms of coefficient of discharge (C_d) and standard deviation. The study reveals very interesting phenomenon. The newly designed orifice meter has higher discharge coefficient with an improvement of about 22% compared to the reference orifice meter with β-value of 0.6. The performance of the new orifice meter with β-value of 0.6 and radius of curvature of 7.07 mm (2R/d = 0.471) is nearly independent of Reynolds number over the entire range of flow conditions studied (10³ ≤ Re ≤ 10⁶).

本文评估了创新设计修改对孔板流量计性能的影响。板厚为 10 mm 的孔板流量计被视为参考流量计，通过将表面拓扑更改为孔板两侧的曲率来修改板，并使用 CFD 评估性能。流量计的性能是根据排放系数 (C _d) 和标准差。研究揭示了非常有趣的现象。新设计的孔板流量计具有更高的流量系数，与β值为0.6的参考孔板流量计相比提高了约22%。β 值为 0.6 且曲率半径为 7.07 mm (2R/d = 0.471) 的新型孔板流量计的性能在研究的整个流动条件范围内几乎与雷诺数无关 (10 ³  ≤ Re ≤ 10 ⁶ ) .