Influence of Geometric Parameters of Channel and Baffle on Steady Stagnant Pressure in Flow Separating Blade in Divergent Channels

Document Type : Original Article

Author

Department of Civil Engineering of Hydraulic Structures, Aras Branch, Islamic Azad University, Jolfa, Iran

Abstract

The study of fluid motion using experimental and analytical methods is one of the scientific fields that has been considered today. With the advent of computer methods, humans have been able to study more complex phenomena. One of the scientific fields in which many advances have been made is computational fluid dynamics. In fact, computational fluid dynamics studies fluid behavior using new technologies and computational capabilities. In fluid dynamics, stagnation pressure (Pitot pressure) is the static pressure at a stable point in the fluid flow at a stable point, the fluid velocity is zero. In the present study, the stagnant pressure at the edge of the flow separating blade in rectangular channels was investigated in 18 models with different opening angles, baffle shapes and baffle arrangements. The modeling results show that the lowest stagnant pressure in the channel is created with an opening angle of 45 degrees and with convergent mode,and the maximum pressure was created in the channel with an opening angle of 60 degrees with the zigzag arrangement type.

Keywords

Main Subjects

References

Ameur, H., 2021. Effect of Corrugated Baffles on the Flow and Thermal Fields in a Channel Heat Exchanger, Journal of Applied and Computational Mechanins, Vol.6. No.2.,pp. 209-218.
Bayon, A., D.Valero, R. García-Bartual, & P.A. López-Jiménez, 2016. Performance assessment of Open FOAM and FLOW-3D in the numerical modeling of a low Reynolds number hydraulic jump. Environmental Modelling & Software, 80, pp.322-335.
Cao, C., Z. Xu, J. Chai and Y. Li. 2019. Radial fluid flow regime in a single fracture under high hydraulic pressure during shear process. Journal of Hydrology, 579, pp.124-142.
FatehiNobarian, B., R. Panahi, and V. Nourani., 2022.Investigation of the Effects of Velocity on Secondary Currents in Semicircular Channels on Hydraulic Jump Parameters, Iranian Journal of Science and Technology, Transactions of Civil Engineering, Vol.46. pp.3351 -3359.https://doi.org/10.1007/s40996-021-00800-x
Gnani, F., H. Zare-Behtash, and K. Kontis, 2018. Effect of back-pressure forcing on shock train structures in rectangular channels, Acta Astronautica, 145, pp. 471-48.
Gnani, F., H. Zare-Behtash, and K. Kontis, 2016. Pseudo-shock waves and their interactions in high-speed intakes, Progress in Aerospace Sciences, 82, pp. 36-56.
Kang, D., 2015.Effect of Baffle Configuration on Mixing in a T-shaped, Micromachine. pp.765-777.
Maroussi, M. 2014. Analysis and design with Flow 3D software, Fadak Isatis Publishing, 5-1, in Persian.
Qasemzadeh, F. 1394. Simulation of hydraulic problems in FLOW-3D, Noavar Publishing, 18-13, in Persian.
Saha,S., P. Biswas, S. Nath, and L. Singh, 2020. Numerical Simulation of Newtonian Fluid flow through a suddenly contracted rectangular channel with two different types of baffle plates, Methodologies and Application, pp.9873-9885.
Yusuf, Y., Sh. Ansari, M.  Bayans, R. Sabbagh,  M. El Hassan1  and S. David Nobes, 2018. Study of Flow Convergence in Rectangular Slots using Particle Shadowgraph Velocimetry.
Irrigation and Water Engineering
Volume 14, Issue 1 - Serial Number 53
September 2023
Pages 57-71

Files

Share

How to cite

Statistics