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| Content Provider | Springer Nature Link |
|---|---|
| Author | Dinarvand, S. Hosseini, R. Tamim, H. Damangir, E. Pop, I. |
| Copyright Year | 2015 |
| Abstract | An unsteady three-dimensional stagnation-point flow of a nanofluid past a circular cylinder with sinusoidal radius variation is investigated numerically. By introducing new similarity transformations for the velocity, temperature, and nanoparticle volume fraction, the basic equations governing the flow and heat and mass transfer are reduced to highly nonlinear ordinary differential equations. The resulting nonlinear system is solved numerically by the fourth-order Runge–Kutta method with the shooting technique. The thermophoresis and Brownian motion effects occur in the transport equations. The velocity, temperature, and nanoparticle concentration profiles are analyzed with respect to the involved parameters of interest, namely, unsteadiness parameter, Brownian motion parameter, thermophoresis parameter, Prandtl number, and Lewis number. Numerical values of the friction coefficient, diffusion mass flux, and heat flux are computed. It is found that the friction coefficient and heat transfer rate increase with increasing unsteadiness parameter (the highest heat transfer rate at the surface occurs if the thermophoresis and Brownian motion effects are absent) and decrease with increasing both thermophoresis and Brownian motion parameters. The present results are found to be in good agreement with previously published results. |
| Starting Page | 601 |
| Ending Page | 611 |
| Page Count | 11 |
| File Format | |
| ISSN | 00218944 |
| Journal | Journal of Applied Mechanics and Technical Physics |
| Volume Number | 56 |
| Issue Number | 4 |
| e-ISSN | 15738620 |
| Language | English |
| Publisher | Pleiades Publishing |
| Publisher Date | 2015-11-18 |
| Publisher Place | Moscow |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | nanofluid three-dimensional stagnation-point flow unsteadiness Brownian motion thermophoresis numerical solution Mechanics Fluid- and Aerodynamics Classical Continuum Physics Applications of Mathematics Mathematical Modeling and Industrial Mathematics Mechanical Engineering |
| Content Type | Text |
| Resource Type | Article |
| Subject | Mechanics of Materials Condensed Matter Physics Mechanical Engineering |
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