Startseite Technik Chapter 10 Thermo-fluid behavior of electroosmotic flow in a hydrophobic microchannel under Joule heating and external fields
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Chapter 10 Thermo-fluid behavior of electroosmotic flow in a hydrophobic microchannel under Joule heating and external fields

  • Ashok K. Barik , Prafulla K. Swain und Mohamed M. Awad
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Flow Dynamics and Heat Transfer
Ein Kapitel aus dem Buch Flow Dynamics and Heat Transfer

Abstract

In this chapter, electromagnetohydrodynamic characteristics of a thermally fully developed flowfully developed flow of an electrolyte solutionelectrolyte solution through micro-parallel plates under the influence of the external magnetic, electric, and radiation fields have been numerically investigated. The finite difference methodfinite difference method has been implemented in an in-house computer program to solve electric potential, momentum, and energy equations with velocity slip and temperature jump conditions at the wall. The effects of dimensionless pressure gradientpressure gradient, Joule heatingJoule heating, viscous heating, and other parameters such as radiationradiation parameter, slip, and temperature-jump on the normalized velocity field, temperature field, flow rate, and Nusselt numberNusselt number have been critically analyzed. It has been observed that the velocity of the flow increases with the slip on the wall. Also, the flow rate is observed to increase with the slip parameterslip parameter and decreases with the Hartmann numberHartmann number. For electromagnetohydrodynamic flow, the Nusselt number is found to increase rapidly at the low value of the electric double layer (EDLelectric double layer (EDL)) parameter ( κ ), which slows down at the high value of κ . We also observe that Nusselt number increases with the Hartmann number ( H a ), EDLelectric double layer (EDL) parameter ( κ ), and radiation parameter ( N r ). We believe that the present study may be helpful to design microfluidic devicesmicrofluidic devices such as micro-heat pipes, micro-heat exchangers, and microelectronics. Moreover, this study may provide valuable insights into magnetic and radioactive therapeutics such as muscle pain relief and tumor treatment.

Abstract

In this chapter, electromagnetohydrodynamic characteristics of a thermally fully developed flowfully developed flow of an electrolyte solutionelectrolyte solution through micro-parallel plates under the influence of the external magnetic, electric, and radiation fields have been numerically investigated. The finite difference methodfinite difference method has been implemented in an in-house computer program to solve electric potential, momentum, and energy equations with velocity slip and temperature jump conditions at the wall. The effects of dimensionless pressure gradientpressure gradient, Joule heatingJoule heating, viscous heating, and other parameters such as radiationradiation parameter, slip, and temperature-jump on the normalized velocity field, temperature field, flow rate, and Nusselt numberNusselt number have been critically analyzed. It has been observed that the velocity of the flow increases with the slip on the wall. Also, the flow rate is observed to increase with the slip parameterslip parameter and decreases with the Hartmann numberHartmann number. For electromagnetohydrodynamic flow, the Nusselt number is found to increase rapidly at the low value of the electric double layer (EDLelectric double layer (EDL)) parameter ( κ ), which slows down at the high value of κ . We also observe that Nusselt number increases with the Hartmann number ( H a ), EDLelectric double layer (EDL) parameter ( κ ), and radiation parameter ( N r ). We believe that the present study may be helpful to design microfluidic devicesmicrofluidic devices such as micro-heat pipes, micro-heat exchangers, and microelectronics. Moreover, this study may provide valuable insights into magnetic and radioactive therapeutics such as muscle pain relief and tumor treatment.

Kapitel in diesem Buch

  1. Frontmatter I
  2. Contents V
  3. Aim and scope VII
  4. Preface IX
  5. Acknowledgments
  6. About editors XIII
  7. List of contributing authors XV
  8. Chapter 1 Introduction to flow dynamics and heat transfer 1
  9. Chapter 2 Compressible fluid flow and heat transfer 29
  10. Chapter 3 Non-Newtonian fluid flow and heat transfer 59
  11. Chapter 4 Heat transfer in forced and natural convection 81
  12. Chapter 5 Numerical study of coupled partial differential equations in heat transfer problems with imprecisely defined parameters 91
  13. Chapter 6 Numerical approach to study the effect of uncertain spectrum of field variables in a porous cavity 107
  14. Chapter 7 Investigation of the thermal fluid system using direct numerical simulation 123
  15. Chapter 8 Dynamics of shock-accelerated V-shaped gas interface 139
  16. Chapter 9 Nonlinear and linear analyses of partially ionized plasma 155
  17. Chapter 10 Thermo-fluid behavior of electroosmotic flow in a hydrophobic microchannel under Joule heating and external fields 185
  18. Chapter 11 The study of oscillating water column energy device in a two-layer fluid system of finite impermeable depth 219
  19. Chapter 12 Data-driven prediction of thermal conductivity ratio in nanoparticle-enhanced 60:40 EG/water nanofluids 239
  20. Chapter 13 Industrial applications of flow dynamics and heat transfer 261
  21. Chapter 14 Optimization techniques in flow dynamics and heat transfer 301
  22. Chapter 15 Advanced optimization methods in flow dynamics 335
  23. Index 353
  24. De Gruyter Series in Advanced Mechanical Engineering
https://doi.org/10.1515/9783111661674-010

Kapitel in diesem Buch

  1. Frontmatter I
  2. Contents V
  3. Aim and scope VII
  4. Preface IX
  5. Acknowledgments
  6. About editors XIII
  7. List of contributing authors XV
  8. Chapter 1 Introduction to flow dynamics and heat transfer 1
  9. Chapter 2 Compressible fluid flow and heat transfer 29
  10. Chapter 3 Non-Newtonian fluid flow and heat transfer 59
  11. Chapter 4 Heat transfer in forced and natural convection 81
  12. Chapter 5 Numerical study of coupled partial differential equations in heat transfer problems with imprecisely defined parameters 91
  13. Chapter 6 Numerical approach to study the effect of uncertain spectrum of field variables in a porous cavity 107
  14. Chapter 7 Investigation of the thermal fluid system using direct numerical simulation 123
  15. Chapter 8 Dynamics of shock-accelerated V-shaped gas interface 139
  16. Chapter 9 Nonlinear and linear analyses of partially ionized plasma 155
  17. Chapter 10 Thermo-fluid behavior of electroosmotic flow in a hydrophobic microchannel under Joule heating and external fields 185
  18. Chapter 11 The study of oscillating water column energy device in a two-layer fluid system of finite impermeable depth 219
  19. Chapter 12 Data-driven prediction of thermal conductivity ratio in nanoparticle-enhanced 60:40 EG/water nanofluids 239
  20. Chapter 13 Industrial applications of flow dynamics and heat transfer 261
  21. Chapter 14 Optimization techniques in flow dynamics and heat transfer 301
  22. Chapter 15 Advanced optimization methods in flow dynamics 335
  23. Index 353
  24. De Gruyter Series in Advanced Mechanical Engineering
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Heruntergeladen am 15.3.2026 von https://www.degruyterbrill.com/document/doi/10.1515/9783111661674-010/html
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