Moving Mesh as Transient Approach for Pico Scale Undershot Waterwheel

Authors

  • Imam Syofii Study Program of Mechanical Engineering Education, Faculty of Teacher Training and Education, Universitas Sriwijaya, Indralaya 30662, South Sumatera, Indonesia
  • Dewi Puspita Sari Study Program of Mechanical Engineering Education, Faculty of Teacher Training and Education, Universitas Sriwijaya, Indralaya 30662, South Sumatera, Indonesia
  • Dendy Adanta Department of Mechanical Engineering, Faculty of Engineering, Universitas Sriwijaya, Indralaya 30662, South Sumatera, Indonesia
  • Muhammad Amsal Ade Saputra Department of Mechanical Engineering, Faculty of Engineering, Universitas Sriwijaya, Indralaya 30662, South Sumatera, Indonesia
  • Wadirin Wadirin Department of Mechanical Engineering, Faculty of Engineering, Universitas Sriwijaya, Indralaya 30662, South Sumatera, Indonesia

DOI:

https://doi.org/10.37934/cfdl.14.8.3342

Keywords:

Moving Mesh, Transient Approach, Undershot Waterwheel, Pico hydro

Abstract

The computational fluid dynamics (CFD) method is often used for undershot waterwheel (USWW) studies. The CFD method is a suitable solution for investigating physical flow phenomena on USWW so that its energy conversion process can be appropriately understood. The transient simulation is necessary to study the flow of physical phenomena. However, there is no recommendation for the transient approach for USWW. The boundary conditions for the transient approach often used for rotating case objects is a moving mesh. Therefore, this study investigates moving mesh as a USSW transient approach to predict its performance. Based on the results, the average deviation from simulation results to experimental data of torque is 22.1%, mechanical power is 5.75%, and efficiency is 5.75%. The average deviation reading of torque is 2.93 N·m (not a significant difference), mechanical power is 0.47 W, and efficiency is 1.19%. Further, the curve data simulation results to experimental data show a similar pattern, expressed by exponential for torque and polynomial for mechanical power and efficiency. Thus, a transient approach using the moving mesh feature is recommended for the USWW case; because the data pattern and reading deviation are reasonable.

Author Biographies

Imam Syofii, Study Program of Mechanical Engineering Education, Faculty of Teacher Training and Education, Universitas Sriwijaya, Indralaya 30662, South Sumatera, Indonesia

imamsyofii@unsri.ac.id

Dewi Puspita Sari, Study Program of Mechanical Engineering Education, Faculty of Teacher Training and Education, Universitas Sriwijaya, Indralaya 30662, South Sumatera, Indonesia

dewipuspita@fkip.unsri.ac.id

Dendy Adanta, Department of Mechanical Engineering, Faculty of Engineering, Universitas Sriwijaya, Indralaya 30662, South Sumatera, Indonesia

dendyadanta@ymail.com

Muhammad Amsal Ade Saputra, Department of Mechanical Engineering, Faculty of Engineering, Universitas Sriwijaya, Indralaya 30662, South Sumatera, Indonesia

m.a.adesaputra@ft.unsri.ac.id

Wadirin Wadirin, Department of Mechanical Engineering, Faculty of Engineering, Universitas Sriwijaya, Indralaya 30662, South Sumatera, Indonesia

wadirin@fkip.unsri.ac.id

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Published

2022-08-23

How to Cite

Syofii, I., Sari, D. P., Adanta, D., Saputra, M. A. A., & Wadirin, W. (2022). Moving Mesh as Transient Approach for Pico Scale Undershot Waterwheel. CFD Letters, 14(8), 33–42. https://doi.org/10.37934/cfdl.14.8.3342

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