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Mathematics > Numerical Analysis

arXiv:2210.03798 (math)
[Submitted on 7 Oct 2022]

Title:Computational performance of the MMOC in the inverse design of the Doswell frontogenesis equation

Authors:Alexandre Francisco, Umberto Biccari, Enrique Zuazua
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Abstract:Inverse design of transport equations can be addressed by using a gradient-adjoint methodology. In this methodology numerical schemes used for the adjoint resolution determine the direction of descent in its iterative algorithm, and consequently the CPU time consumed by the inverse design. As the CPU time constitutes a known bottleneck, it is important to employ light and quick schemes to the adjoint problem. In this regard, we proposed to use the Modified Method of Characteristics (MMOC). Despite not preserving identity conservation, the MMOC is computationally competitive. In this work we investigated the advantage of using the MMOC in comparison with the Lax-Friedrichs and Lax-Wendro? schemes for the inverse design problem. By testing the Doswell frontogenesis equation, we observed that the MMOC can provide more efficient and accurate computation under some simulation conditions.
Subjects: Numerical Analysis (math.NA); Analysis of PDEs (math.AP); Optimization and Control (math.OC)
Cite as: arXiv:2210.03798 [math.NA]
  (or arXiv:2210.03798v1 [math.NA] for this version)
  https://doi.org/10.48550/arXiv.2210.03798

Submission history

From: Alexandre Francisco [view email]
[v1] Fri, 7 Oct 2022 20:03:46 UTC (418 KB)
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