Wiryanto, Leo Hari and Widyawati, Ratna and Fauzi, Rifky and Putra, Gusrian and Putriani, Ekayana (2022) SIMULATION OF WAVE PROPAGATION ON THIN FILM. Advances and Applications in Fluid Mechanics. ISSN 0973-4686


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Official URL: http://dx.doi.org/10.17654/0973468622007


We are concerned with fluid having very small thickness flowing on an inclined bottom. The thickness of the fluid varies by changing time, so that it forms wave propagation, and we observe the wave profile. Since the fluid is thin, it can be modelled based on the theory of lubrication. We formulate the model into a single equation of the fluid thickness with the boundary conditions. The viscosity and the surface tension are two physical parameters considered in the wave evolution. The difficulty in solving the equation is strongly non-linearity of the model. Therefore, to deal with the non-linearity, we used a numerical approach, i.e., forward time central space (FTCS). The stability is analyzed before we apply it to the equation, so that we can simulate the wave. We obtain that the wave changes the form into almost shock.

Item Type: Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Fakultas Teknik (FT) > Prodi Teknik Sipil
Depositing User: RATNA WIDYAWATI
Date Deposited: 15 Nov 2022 01:53
Last Modified: 15 Nov 2022 01:53
URI: http://repository.lppm.unila.ac.id/id/eprint/46645

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