Spectral Method for Analyzing Motions of Ellis Fluid Over Corrugated Boundaries
A spectral method for solving the steady flow of a shear-thinning Ellis fluid is discussed for the case of a planar channel with corrugated boundaries. Polynomial approximations are employed for the velocity and viscosity distributions in the regions around singularities. The proposed algorithm empl...
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| Veröffentlicht in: | Journal of fluids engineering 2011-02, Vol.133 (2) |
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| container_title | Journal of fluids engineering |
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| creator | Bakhsheshi, M. Fazel Floryan, J. M Kaloni, P. N |
| description | A spectral method for solving the steady flow of a shear-thinning Ellis fluid is discussed for the case of a planar channel with corrugated boundaries. Polynomial approximations are employed for the velocity and viscosity distributions in the regions around singularities. The proposed algorithm employs a fixed computational domain with the physical domain of interest submerged inside the computational domain. The flow boundary conditions are imposed using the concept of immersed boundary conditions. The method, thus, eliminates the need for grid generation. The algorithm relies on Fourier expansions in the flow direction and Chebyshev expansions in the transverse direction. Various tests confirm spectral accuracy of the algorithm. |
| doi_str_mv | 10.1115/1.4003356 |
| format | Article |
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| language | eng |
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| source | ASME Transactions Journals (Current) |
| subjects | Computational methods in fluid dynamics Exact sciences and technology Flows in ducts, channels, nozzles, and conduits Fluid dynamics Fundamental areas of phenomenology (including applications) Non-newtonian fluid flows Physics Techniques and Procedures |
| title | Spectral Method for Analyzing Motions of Ellis Fluid Over Corrugated Boundaries |
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