PERIASAMY, Govindaraj ;MOULEESWARAN, Senthilkumar ;VENUGOPAL, Prabhu Raja ;PERUMAL, Chellapandi . Investigation of Hydrodynamic Flow Characteristics in Helical Coils with Ovality and Wrinkles. Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 67, n.11, p. 570-579, november 2021. ISSN 0039-2480. Available at: <https://www.sv-jme.eu/sl/article/investigation-on-hydrodynamic-flow-characteristics-in-helical-coils-with-ovality-and-wrinkles/>. Date accessed: 11 dec. 2024. doi:http://dx.doi.org/10.5545/sv-jme.2021.7374.
Periasamy, G., Mouleeswaran, S., Venugopal, P., & Perumal, C. (2021). Investigation of Hydrodynamic Flow Characteristics in Helical Coils with Ovality and Wrinkles. Strojniški vestnik - Journal of Mechanical Engineering, 67(11), 570-579. doi:http://dx.doi.org/10.5545/sv-jme.2021.7374
@article{sv-jmesv-jme.2021.7374, author = {Govindaraj Periasamy and Senthilkumar Mouleeswaran and Prabhu Raja Venugopal and Chellapandi Perumal}, title = {Investigation of Hydrodynamic Flow Characteristics in Helical Coils with Ovality and Wrinkles}, journal = {Strojniški vestnik - Journal of Mechanical Engineering}, volume = {67}, number = {11}, year = {2021}, keywords = {helical coil, flow characteristics, ovality, wrinkles, computational fluid dynamics}, abstract = {The forming of helical coils using a rolling process results in geometrical irregularities (wrinkles and ovality) that are likely to influence the hydrodynamic behaviour of the flow field inside the coil in applications such as air generators. In this study, the above behaviour was investigated by experimental and numerical analyses considering the heat exchanger used in dry air generators. In experimental analysis, a three-turn copper helical coil with wrinkles and ovality was investigated to estimate the global hydrodynamic characteristics inside the helical coil. The results were compared with that of the ideal geometry of a coil without wrinkles and ovality. The effect of wrinkles was assessed through friction factor, and the corresponding equivalent surface roughness was found to increase by 5.7 times, owing to the presence of wrinkles in the helical coil. Numerical simulation was conducted to determine the pressure distribution, velocity distribution, and secondary flow inside the helical coil; the results were validated with experimental data. A critical portion of the helical coil with multiple wrinkles was considered for numerical simulation to investigate the localized effects of wrinkles on the flow field behaviour. The analysis in the vicinity of wrinkles revealed negative pressure development during flow, which in turn would cause re-circulation and cavitation that are undesirable.}, issn = {0039-2480}, pages = {570-579}, doi = {10.5545/sv-jme.2021.7374}, url = {https://www.sv-jme.eu/sl/article/investigation-on-hydrodynamic-flow-characteristics-in-helical-coils-with-ovality-and-wrinkles/} }
Periasamy, G.,Mouleeswaran, S.,Venugopal, P.,Perumal, C. 2021 November 67. Investigation of Hydrodynamic Flow Characteristics in Helical Coils with Ovality and Wrinkles. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 67:11
%A Periasamy, Govindaraj %A Mouleeswaran, Senthilkumar %A Venugopal, Prabhu Raja %A Perumal, Chellapandi %D 2021 %T Investigation of Hydrodynamic Flow Characteristics in Helical Coils with Ovality and Wrinkles %B 2021 %9 helical coil, flow characteristics, ovality, wrinkles, computational fluid dynamics %! Investigation of Hydrodynamic Flow Characteristics in Helical Coils with Ovality and Wrinkles %K helical coil, flow characteristics, ovality, wrinkles, computational fluid dynamics %X The forming of helical coils using a rolling process results in geometrical irregularities (wrinkles and ovality) that are likely to influence the hydrodynamic behaviour of the flow field inside the coil in applications such as air generators. In this study, the above behaviour was investigated by experimental and numerical analyses considering the heat exchanger used in dry air generators. In experimental analysis, a three-turn copper helical coil with wrinkles and ovality was investigated to estimate the global hydrodynamic characteristics inside the helical coil. The results were compared with that of the ideal geometry of a coil without wrinkles and ovality. The effect of wrinkles was assessed through friction factor, and the corresponding equivalent surface roughness was found to increase by 5.7 times, owing to the presence of wrinkles in the helical coil. Numerical simulation was conducted to determine the pressure distribution, velocity distribution, and secondary flow inside the helical coil; the results were validated with experimental data. A critical portion of the helical coil with multiple wrinkles was considered for numerical simulation to investigate the localized effects of wrinkles on the flow field behaviour. The analysis in the vicinity of wrinkles revealed negative pressure development during flow, which in turn would cause re-circulation and cavitation that are undesirable. %U https://www.sv-jme.eu/sl/article/investigation-on-hydrodynamic-flow-characteristics-in-helical-coils-with-ovality-and-wrinkles/ %0 Journal Article %R 10.5545/sv-jme.2021.7374 %& 570 %P 10 %J Strojniški vestnik - Journal of Mechanical Engineering %V 67 %N 11 %@ 0039-2480 %8 2021-11-25 %7 2021-11-25
Periasamy, Govindaraj, Senthilkumar Mouleeswaran, Prabhu Raja Venugopal, & Chellapandi Perumal. "Investigation of Hydrodynamic Flow Characteristics in Helical Coils with Ovality and Wrinkles." Strojniški vestnik - Journal of Mechanical Engineering [Online], 67.11 (2021): 570-579. Web. 11 Dec. 2024
TY - JOUR AU - Periasamy, Govindaraj AU - Mouleeswaran, Senthilkumar AU - Venugopal, Prabhu Raja AU - Perumal, Chellapandi PY - 2021 TI - Investigation of Hydrodynamic Flow Characteristics in Helical Coils with Ovality and Wrinkles JF - Strojniški vestnik - Journal of Mechanical Engineering DO - 10.5545/sv-jme.2021.7374 KW - helical coil, flow characteristics, ovality, wrinkles, computational fluid dynamics N2 - The forming of helical coils using a rolling process results in geometrical irregularities (wrinkles and ovality) that are likely to influence the hydrodynamic behaviour of the flow field inside the coil in applications such as air generators. In this study, the above behaviour was investigated by experimental and numerical analyses considering the heat exchanger used in dry air generators. In experimental analysis, a three-turn copper helical coil with wrinkles and ovality was investigated to estimate the global hydrodynamic characteristics inside the helical coil. The results were compared with that of the ideal geometry of a coil without wrinkles and ovality. The effect of wrinkles was assessed through friction factor, and the corresponding equivalent surface roughness was found to increase by 5.7 times, owing to the presence of wrinkles in the helical coil. Numerical simulation was conducted to determine the pressure distribution, velocity distribution, and secondary flow inside the helical coil; the results were validated with experimental data. A critical portion of the helical coil with multiple wrinkles was considered for numerical simulation to investigate the localized effects of wrinkles on the flow field behaviour. The analysis in the vicinity of wrinkles revealed negative pressure development during flow, which in turn would cause re-circulation and cavitation that are undesirable. UR - https://www.sv-jme.eu/sl/article/investigation-on-hydrodynamic-flow-characteristics-in-helical-coils-with-ovality-and-wrinkles/
@article{{sv-jme}{sv-jme.2021.7374}, author = {Periasamy, G., Mouleeswaran, S., Venugopal, P., Perumal, C.}, title = {Investigation of Hydrodynamic Flow Characteristics in Helical Coils with Ovality and Wrinkles}, journal = {Strojniški vestnik - Journal of Mechanical Engineering}, volume = {67}, number = {11}, year = {2021}, doi = {10.5545/sv-jme.2021.7374}, url = {https://www.sv-jme.eu/sl/article/investigation-on-hydrodynamic-flow-characteristics-in-helical-coils-with-ovality-and-wrinkles/} }
TY - JOUR AU - Periasamy, Govindaraj AU - Mouleeswaran, Senthilkumar AU - Venugopal, Prabhu Raja AU - Perumal, Chellapandi PY - 2021/11/25 TI - Investigation of Hydrodynamic Flow Characteristics in Helical Coils with Ovality and Wrinkles JF - Strojniški vestnik - Journal of Mechanical Engineering; Vol 67, No 11 (2021): Strojniški vestnik - Journal of Mechanical Engineering DO - 10.5545/sv-jme.2021.7374 KW - helical coil, flow characteristics, ovality, wrinkles, computational fluid dynamics N2 - The forming of helical coils using a rolling process results in geometrical irregularities (wrinkles and ovality) that are likely to influence the hydrodynamic behaviour of the flow field inside the coil in applications such as air generators. In this study, the above behaviour was investigated by experimental and numerical analyses considering the heat exchanger used in dry air generators. In experimental analysis, a three-turn copper helical coil with wrinkles and ovality was investigated to estimate the global hydrodynamic characteristics inside the helical coil. The results were compared with that of the ideal geometry of a coil without wrinkles and ovality. The effect of wrinkles was assessed through friction factor, and the corresponding equivalent surface roughness was found to increase by 5.7 times, owing to the presence of wrinkles in the helical coil. Numerical simulation was conducted to determine the pressure distribution, velocity distribution, and secondary flow inside the helical coil; the results were validated with experimental data. A critical portion of the helical coil with multiple wrinkles was considered for numerical simulation to investigate the localized effects of wrinkles on the flow field behaviour. The analysis in the vicinity of wrinkles revealed negative pressure development during flow, which in turn would cause re-circulation and cavitation that are undesirable. UR - https://www.sv-jme.eu/sl/article/investigation-on-hydrodynamic-flow-characteristics-in-helical-coils-with-ovality-and-wrinkles/
Periasamy, Govindaraj, Mouleeswaran, Senthilkumar, Venugopal, Prabhu Raja, AND Perumal, Chellapandi. "Investigation of Hydrodynamic Flow Characteristics in Helical Coils with Ovality and Wrinkles" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 67 Number 11 (25 November 2021)
Strojniški vestnik - Journal of Mechanical Engineering 67(2021)11, 570-579
© The Authors, CC-BY 4.0 Int. Change in copyright policy from 2022, Jan 1st.
The forming of helical coils using a rolling process results in geometrical irregularities (wrinkles and ovality) that are likely to influence the hydrodynamic behaviour of the flow field inside the coil in applications such as air generators. In this study, the above behaviour was investigated by experimental and numerical analyses considering the heat exchanger used in dry air generators. In experimental analysis, a three-turn copper helical coil with wrinkles and ovality was investigated to estimate the global hydrodynamic characteristics inside the helical coil. The results were compared with that of the ideal geometry of a coil without wrinkles and ovality. The effect of wrinkles was assessed through friction factor, and the corresponding equivalent surface roughness was found to increase by 5.7 times, owing to the presence of wrinkles in the helical coil. Numerical simulation was conducted to determine the pressure distribution, velocity distribution, and secondary flow inside the helical coil; the results were validated with experimental data. A critical portion of the helical coil with multiple wrinkles was considered for numerical simulation to investigate the localized effects of wrinkles on the flow field behaviour. The analysis in the vicinity of wrinkles revealed negative pressure development during flow, which in turn would cause re-circulation and cavitation that are undesirable.