论文部分内容阅读
基于流体动量方程从机理上分析了交变流动和稳定流动存在差别的根本原因。以动态参数测量为基础,在运行频率30～60 Hz,最大热端压比1.3,充气压力1.0～3.0 MPa,等温条件下,首次定量化研究了惯性项对小管径(φ8 mm)、高目数丝网(300～500目)填充回热器交变流动阻力特性的影响。综合频率和压比对交变流动回热器阻力特性的影响,可以得出结论:在本实验条件下,回热器交变流动系统中的惯性力与压力相比始终是个小量,从流动角度来说,可以对回热器中气体交变流动作准稳态处理。
Based on the fluid momentum equation, the fundamental reason for the difference between alternating flow and steady flow is analyzed from the mechanism. Based on the measurement of dynamic parameters, the inertial term of the small diameter (φ8 mm) and height (φ8 mm) were studied for the first time under the conditions of isothermal temperature 30 ~ 60 Hz, maximum hot end pressure ratio 1.3 and inflation pressure 1.0 ~ 3.0 MPa Effect of Mesh (300 ~ 500 mesh) Friction Regenerator on Alternating Flow Resistance. The effect of synthesis frequency and pressure ratio on the resistance characteristics of ACFR can be concluded: Under the experimental conditions, the inertial force in ACFR system is always a small amount compared with the pressure, From a standpoint, it is possible to perform a quasi steady-state treatment of the gas alternating flow in the regenerator.