Numerical Investigation of Flow Velocity Enhancement by a Submerged Mound and a Ducted Tidal Turbine in Low-Current Waters

Q: What does this research mean for the field?

Combining a submerged mound and a duct in low-current waters amplifies flow velocity by approximately 47%, which increases to up to 60% when free surface effects are included. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

Jaehyuk Jeon; Sanghwan Heo; Weoncheol Koo

doi:10.7846/jkosmee.2026.29.3.254

August 31, 2026Journal of the Korean Society for Marine Environment & Energy

Numerical Investigation of Flow Velocity Enhancement by a Submerged Mound and a Ducted Tidal Turbine in Low-Current Waters

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Key Points

To evaluate flow velocity amplification strategies combining submerged sea mounds and ducted turbines to improve tidal energy conversion efficiency in low-velocity marine environments.
Simulated flow fields across five structural configurations combining submerged mounds and ducts using STAR-CCM+ computational fluid dynamics software.
Analyzed flow field characteristics, velocity variations, amplification rates, and the influence of free surface interaction.
The combined submerged mound and duct structure produced an average flow velocity amplification rate of approximately 47%.
Accounting for free surface effects yielded a maximum velocity amplification rate of approximately 60%, driven by free surface drawdown suppressing upper flow bypass.

Implication

Numerical simulation demonstrates flow velocity amplification in low-current waters using combined submerged mounds and ducted turbines, indicating viable strategies for tidal power generation.

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Cite This Study

Jeon et al. (2026) studied this question.

synapsesocial.com/papers/6a97e237c562ede874ec6387 https://doi.org/10.7846/jkosmee.2026.29.3.254

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Numerical Investigation of Flow Velocity Enhancement by a Submerged Mound and a Ducted Tidal Turbine in Low-Current Waters

Key Points

Implication

Abstract

Discussion

Cite This Study

Numerical Investigation of Flow Velocity Enhancement by a Submerged Mound and a Ducted Tidal Turbine in Low-Current Waters

Key Points

Implication

Abstract

Discussion

Cite This Study

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