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- W4387458749 abstract "Abstract This paper introduces a new perspective of the traditional view on the velocity of each physical particle in the coupled Burgers’ equation in the backward semi-Lagrangian method (BSLM). The proposed methods reduce the number of Cauchy problems to be solved by observing a single virtual characteristic curve with a velocity. This can drastically reduce the computational cost of determining the departure point. Then, we solve the derived system reflected by the single virtual characteristic curve. Moreover, an efficient strategy for the derived linear system of equations is provided. Four examples are tested to demonstrate the adaptability and efficiency of the proposed method. The test results show that the proposed method has third- and fourth-order accuracy in time and space, respectively. In addition, compared with the existing method of solving the problem along two particles with different velocities, we confirm that the proposed method significantly reduces computational cost while maintaining accuracy well." @default.
- W4387458749 created "2023-10-10" @default.
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- W4387458749 date "2023-10-09" @default.
- W4387458749 modified "2023-10-11" @default.
- W4387458749 title "Algorithms for coupled Burgers’ equations by sharing characteristic curves within BSLM" @default.
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- W4387458749 doi "https://doi.org/10.1186/s13662-023-03785-1" @default.
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