| Autor: |
Lundgren, Jonas, Lundgren, Jan-Erik, Najafabadi, Hossein Nadali, Thore, Carl-Johan |
| Předmět: |
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| Zdroj: |
Engineering Optimization; May2024, Vol. 56 Issue 5, p766-791, 26p |
| Abstrakt: |
A method is presented for obtaining topology optimized designs for internally cooled high temperature applications, using a flexible geometry description, by means of a voxelization methodology and a novel boundary detection algorithm. A conjugate heat transfer approach is taken; the physics is described by a Stokes–Brinkman model for the flow, weakly coupled with a convection–diffusion model for the heat transfer. A practically relevant optimization formulation, consisting of a maximum temperature objective with a mass flow constraint, is used, and applied to an industrial-relevant non-trivial geometry resembling a guide vane in a gas turbine. Temperatures and velocities from the optimized design are compared with the response from a Stokes flow model with body-fitted mesh and a high-fidelity Reynolds-averaged Navier–Stokes model. A comparison of the performance from a mixed and a penalty approach for solving the flow problem is included. The voxelization approach shows good promise for handling complex design domains. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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