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DTIC ADA270204: Surrogates for Numerical Simulations; Optimization ... |
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by Defense Technical Information Center |
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Although the advent of fast and inexpensive parallel |
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computers has rendered numerous previously intractable |
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calculations feasible, many numerical simulations remain |
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too resource-intensive to be directly inserted in |
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engineering optimization efforts. An attractive |
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alternative to direct insertion considers models for |
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computational systems: the expensive simulation is evoked |
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only to construct and validate a simplified input-output |
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model; this simplified input- output model then serves as |
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a simulation surrogate in subsequent engineering |
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optimization studies. We present here a simple 'Bayesian- |
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validated' statistical framework for the construction, |
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validation, and purposive application of static computer- |
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simulation surrogates. As an example, we consider |
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dissipation-transport optimization of laminar-flow eddy- |
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promoter heat exchangers: parallel spectral element |
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Navier-Stokes calculations serve to construct and |
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validate surrogates for the flowrate and Nusselt number; |
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these surrogates then represent the originating Navier- |
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Stokes equations in the ensuing design process. Numerical |
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analysis, Fluid dynamics, Optimization, Surrogates, Monte |
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Carlo Method, Modelling. |
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Date Published: 2018-03-12 20:39:35 |
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Identifier: DTIC_ADA270204 |
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Item Size: 39205329 |
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Language: english |
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Media Type: texts |
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# Topics |
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DTIC Archive; Yesilyurt, Serhat; INST... |
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