Self-affinity approach for the determination of flow regime in pipelines

被引：6
作者：
Brol, S. [1 ]
Dyga, R. [2 ]
机构：
[1] Opole Univ Technol, Fac Mech Engn, Dept Vehicles, Mikolajczyka 5, PL-45271 Opole, Poland
[2] Opole Univ Technol, Fac Mech Engn, Dept Chem & Proc Engn, Mikolajczyka 5, PL-45271 Opole, Poland
来源：
MEASUREMENT | 2021年 / 168卷
关键词：
Measurement; Self-affinity; Differential pressure; Flow regime determination; 2-PHASE PRESSURE-DROP; CELL METAL FOAM; HEAT-TRANSFER; ENTRY-REGION; REFRIGERANT; PATTERN; TUBES; IDENTIFICATION; VISUALIZATION; CHANNEL;
D O I：
10.1016/j.measurement.2020.108452
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper presents original work concerning modified measurement method, related processing technique and output values forming. The method introduces extended length between pressure measurement points in pipes filled with open cell metal foam. It is proven theoretically and practically that increased distance between pressure sensors assures self-affinity of differential pressure signal. The modified fractal dimension determination procedure accepts different statistical parameters recursively determined on input signal and outputs fractal dimension D and B-parameter. For flow regime distinguishing the two B-parameters mainly B-mean and B-s(td) are needed. The measurement method proves universality of proposed method for all investigated flow regimes regardless of mixture and foam parameters. The method can be used for industrial type active flow regime control as well as for scientific activities.
引用
收藏
页数：10
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