The k-ε turbulence model to simulate the two-phase flows of fluids in flumes using C++ open source code computational fluid dynamic software
The governing equations of two-phase flows based on the k-ε turbulence model were developed using open source computational fluid dynamic codes and open field operation and manipulation (OpenFOAM) software to simulate water flows in a flume. The water surface was modeled using the volume of fluid me...
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th-mahidol.309692018-10-19T11:29:07Z The k-ε turbulence model to simulate the two-phase flows of fluids in flumes using C++ open source code computational fluid dynamic software Ekachai Chaichanasiri Chakrit Suvanjumrat Mahidol University Agricultural and Biological Sciences The governing equations of two-phase flows based on the k-ε turbulence model were developed using open source computational fluid dynamic codes and open field operation and manipulation (OpenFOAM) software to simulate water flows in a flume. The water surface was modeled using the volume of fluid method with a turbulence model. The PISO (pressure implicit with splitting of operator) algorithm was used to solve the pressure-velocity coupling in the two-phase flows. The solutions of the simulations were validated using the experimental results as free surface profiles on the wall of the laboratory flume in transient and steady time periods. The transient time period started from when the water was distributed into the flume until it began to overflow the top of the weirs. The steady time period accounted for the water overflowing the weirs and the surface profiles did not change. It was found that the average error of the surface profiles in the transient and steady time periods obtained from the simulations was 8.94% and 8.06%, respectively. 2018-10-19T04:29:07Z 2018-10-19T04:29:07Z 2013-10-04 Article Kasetsart Journal - Natural Science. Vol.47, No.3 (2013), 460-477 00755192 2-s2.0-84884744446 https://repository.li.mahidol.ac.th/handle/123456789/30969 Mahidol University SCOPUS https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84884744446&origin=inward |
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Agricultural and Biological Sciences Ekachai Chaichanasiri Chakrit Suvanjumrat The k-ε turbulence model to simulate the two-phase flows of fluids in flumes using C++ open source code computational fluid dynamic software |
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The governing equations of two-phase flows based on the k-ε turbulence model were developed using open source computational fluid dynamic codes and open field operation and manipulation (OpenFOAM) software to simulate water flows in a flume. The water surface was modeled using the volume of fluid method with a turbulence model. The PISO (pressure implicit with splitting of operator) algorithm was used to solve the pressure-velocity coupling in the two-phase flows. The solutions of the simulations were validated using the experimental results as free surface profiles on the wall of the laboratory flume in transient and steady time periods. The transient time period started from when the water was distributed into the flume until it began to overflow the top of the weirs. The steady time period accounted for the water overflowing the weirs and the surface profiles did not change. It was found that the average error of the surface profiles in the transient and steady time periods obtained from the simulations was 8.94% and 8.06%, respectively. |
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Mahidol University |
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Mahidol University Ekachai Chaichanasiri Chakrit Suvanjumrat |
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Article |
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Ekachai Chaichanasiri Chakrit Suvanjumrat |
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Ekachai Chaichanasiri |
title |
The k-ε turbulence model to simulate the two-phase flows of fluids in flumes using C++ open source code computational fluid dynamic software |
title_short |
The k-ε turbulence model to simulate the two-phase flows of fluids in flumes using C++ open source code computational fluid dynamic software |
title_full |
The k-ε turbulence model to simulate the two-phase flows of fluids in flumes using C++ open source code computational fluid dynamic software |
title_fullStr |
The k-ε turbulence model to simulate the two-phase flows of fluids in flumes using C++ open source code computational fluid dynamic software |
title_full_unstemmed |
The k-ε turbulence model to simulate the two-phase flows of fluids in flumes using C++ open source code computational fluid dynamic software |
title_sort |
k-ε turbulence model to simulate the two-phase flows of fluids in flumes using c++ open source code computational fluid dynamic software |
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2018 |
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https://repository.li.mahidol.ac.th/handle/123456789/30969 |
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1763497409172733952 |