The research of press drop of compressed air foam flow through the bend

2nd International Conference on Materials Science, Energy Technology and Environmental Engineering

材料科学;能源学;生态环境科学

Chen, Y.^1 ; Chen, T.^1 ; Hu, C.^1 ; Fu, X.C.^1 ; Bao, Z.M.^1 ; Zhang, X.Z.^1 ; Xia, J.J.^1

Tianjin Fire Research Institute of MPS, Tianjin

300381, China^1

关键词: Flow model;    Gas;    liquid two-phase flows;    Non-Newtonian fluid flow;    Non-Newtonian fluids;    Pipeline transport;    Straight pipe;    Theoretical calculations;    Water flow model;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/81/1/012118/pdf
DOI  :  10.1088/1755-1315/81/1/012118

来源: IOP

【 摘 要 】

Compressed air foam system (CAFS) had obvious advantages in engineering. The flow model of compressed air foam in the pipeline was different from water flow model because the foam was the gas-liquid two phase flow with non-Newtonian fluid properties and compressibility, and, the water supply theory was not suitable for foam press pipeline transport. At present, there was little research on non-Newtonian fluid flow, especially the foam flow. This study researched the effect of foam flux, end valve and foam type on the press in the straight pipe and bend. The press drop in straight pipes and bends filled with compressed air foam was analyzed, and the result could provide experimental support for theoretical calculation of compressed air foam in bend.