Maqola

Theoretical research of friction factor in hydraulically smooth pipes

Mykola KhlapukNational University of Water and Environmental Engineering, Department of Hydraulic Engineering and Hydraulics, Rivne, 33028, UkraineOlexander BezusyakNational University of Water and Environmental Engineering, Department of Hydraulic Engineering and Hydraulics, Rivne, 33028, UkraineЛюбов ВолкNational University of Water and Environmental Engineering, Department of Hydraulic Engineering and Hydraulics, Rivne, 33028, UkraineZelu ZhangInner Mongolia Agricultural University, No. 306, Zhaowuda Road, Saihan District, Hohhot, Inner Mongolia, 010018, China

2021en

ABI

Annotatsiya

The paper presents the disclosure of the problem of calculating the friction factor. This problem exists in the calculations of head losses for a given flow discharge and the geometric parameters of the pipes. The analysis of the formulas recommended by known scientists is described. The article also presents the shortcomings of the formulas and the variance of the adequacy of the experimental data. These research data were obtained by J. Nikuradze for smooth pipes. We obtained a formula based on the method of dimensional analysis. This formula characterizes the inner surface of the pipes. Also, this formula describes the change in the friction factor from the Reynolds number. The accuracy of calculating the obtained formula is higher than the accuracy of existing formulas.

Hali tarjima qilinmagan

Identifikatorlar

DOI: 10.1051/e3sconf/202128010009

Iqtiboslar va manbalar

2 ta iqtibos0 ta foydalanilgan manba

Koʻrsatkichlar — AkademScholar