There has been renewed interest in the flow behaviour within tubes with periodically varying cross-section with the recognition that they can be used as particle separation devices. In this paper, we present a numerical study of the effect of tube geometry on creeping flow of viscous incompressible fluid through sinusoidally constricted periodic tube which is axisymmetric but longitudinally asymmetric. The boundary element method is used to solve for the flow in the tube by specifying the pressure drop across the ends of the tube. The boundary element equations have been formulated for an infinite periodic tube by writing the velocity in terms of the integrals over the tube boundary and is used to calculate the force on the tube boundary, to obtain the detailed velocity distribution within the tube and to determine the effect of amplitude and wavelength of corrugation on the structure of the flow. We have found that the highest axial velocity is at throat region and lowest axial velocity is at expansion region. Also, we have discovered that the maximum radial velocity occurs at diverging cross-section and minimum radial velocity occurs at converging cross-section. The tangential force on the tube wall is examined for different amplitudes and wavelengths of corrugation and observed that the tangential force is greater in the constricted region than in the expansion region. The physical quantities (such as velocity and force) increase with increasing amplitude and decrease with increasing wavelength. Finally, we have compared our results with the work of Hemmat and Borhan [3] and have found good agreement with them.
Published in | International Journal of Applied Mathematics and Theoretical Physics (Volume 5, Issue 3) |
DOI | 10.11648/j.ijamtp.20190503.14 |
Page(s) | 72-81 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
Copyright |
Copyright © The Author(s), 2019. Published by Science Publishing Group |
Creeping Flow, Numerical Study, Periodic Tube, Sinusoidal Cross-Section, Boundary Element Method
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APA Style
Asif Mahmud, Suhana Perveen, Md. Nazmul Hasan, Md. Samsuzzoha, Nazmul Islam. (2019). Numerical Study of Creeping Flow Through Sinusoidally Periodic Tube. International Journal of Applied Mathematics and Theoretical Physics, 5(3), 72-81. https://doi.org/10.11648/j.ijamtp.20190503.14
ACS Style
Asif Mahmud; Suhana Perveen; Md. Nazmul Hasan; Md. Samsuzzoha; Nazmul Islam. Numerical Study of Creeping Flow Through Sinusoidally Periodic Tube. Int. J. Appl. Math. Theor. Phys. 2019, 5(3), 72-81. doi: 10.11648/j.ijamtp.20190503.14
AMA Style
Asif Mahmud, Suhana Perveen, Md. Nazmul Hasan, Md. Samsuzzoha, Nazmul Islam. Numerical Study of Creeping Flow Through Sinusoidally Periodic Tube. Int J Appl Math Theor Phys. 2019;5(3):72-81. doi: 10.11648/j.ijamtp.20190503.14
@article{10.11648/j.ijamtp.20190503.14, author = {Asif Mahmud and Suhana Perveen and Md. Nazmul Hasan and Md. Samsuzzoha and Nazmul Islam}, title = {Numerical Study of Creeping Flow Through Sinusoidally Periodic Tube}, journal = {International Journal of Applied Mathematics and Theoretical Physics}, volume = {5}, number = {3}, pages = {72-81}, doi = {10.11648/j.ijamtp.20190503.14}, url = {https://doi.org/10.11648/j.ijamtp.20190503.14}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijamtp.20190503.14}, abstract = {There has been renewed interest in the flow behaviour within tubes with periodically varying cross-section with the recognition that they can be used as particle separation devices. In this paper, we present a numerical study of the effect of tube geometry on creeping flow of viscous incompressible fluid through sinusoidally constricted periodic tube which is axisymmetric but longitudinally asymmetric. The boundary element method is used to solve for the flow in the tube by specifying the pressure drop across the ends of the tube. The boundary element equations have been formulated for an infinite periodic tube by writing the velocity in terms of the integrals over the tube boundary and is used to calculate the force on the tube boundary, to obtain the detailed velocity distribution within the tube and to determine the effect of amplitude and wavelength of corrugation on the structure of the flow. We have found that the highest axial velocity is at throat region and lowest axial velocity is at expansion region. Also, we have discovered that the maximum radial velocity occurs at diverging cross-section and minimum radial velocity occurs at converging cross-section. The tangential force on the tube wall is examined for different amplitudes and wavelengths of corrugation and observed that the tangential force is greater in the constricted region than in the expansion region. The physical quantities (such as velocity and force) increase with increasing amplitude and decrease with increasing wavelength. Finally, we have compared our results with the work of Hemmat and Borhan [3] and have found good agreement with them.}, year = {2019} }
TY - JOUR T1 - Numerical Study of Creeping Flow Through Sinusoidally Periodic Tube AU - Asif Mahmud AU - Suhana Perveen AU - Md. Nazmul Hasan AU - Md. Samsuzzoha AU - Nazmul Islam Y1 - 2019/09/19 PY - 2019 N1 - https://doi.org/10.11648/j.ijamtp.20190503.14 DO - 10.11648/j.ijamtp.20190503.14 T2 - International Journal of Applied Mathematics and Theoretical Physics JF - International Journal of Applied Mathematics and Theoretical Physics JO - International Journal of Applied Mathematics and Theoretical Physics SP - 72 EP - 81 PB - Science Publishing Group SN - 2575-5927 UR - https://doi.org/10.11648/j.ijamtp.20190503.14 AB - There has been renewed interest in the flow behaviour within tubes with periodically varying cross-section with the recognition that they can be used as particle separation devices. In this paper, we present a numerical study of the effect of tube geometry on creeping flow of viscous incompressible fluid through sinusoidally constricted periodic tube which is axisymmetric but longitudinally asymmetric. The boundary element method is used to solve for the flow in the tube by specifying the pressure drop across the ends of the tube. The boundary element equations have been formulated for an infinite periodic tube by writing the velocity in terms of the integrals over the tube boundary and is used to calculate the force on the tube boundary, to obtain the detailed velocity distribution within the tube and to determine the effect of amplitude and wavelength of corrugation on the structure of the flow. We have found that the highest axial velocity is at throat region and lowest axial velocity is at expansion region. Also, we have discovered that the maximum radial velocity occurs at diverging cross-section and minimum radial velocity occurs at converging cross-section. The tangential force on the tube wall is examined for different amplitudes and wavelengths of corrugation and observed that the tangential force is greater in the constricted region than in the expansion region. The physical quantities (such as velocity and force) increase with increasing amplitude and decrease with increasing wavelength. Finally, we have compared our results with the work of Hemmat and Borhan [3] and have found good agreement with them. VL - 5 IS - 3 ER -