Physical test and numerical simulation data and the amount of fish eggs in the study area
Data files
Abstract
This is the data for the publication of “Estimated Hydraulic Characteristics and the Entrainment of Fish Eggs and Larvae at a Pumped River-water Intake” on Water Resources Research. Withdrawal of fish eggs and larvae through a river intake (entrainment) may damage the river's early fish resources. To investigate how the hydraulics (flow velocities, directions, and magnitudes) around and within the water intake structure influence entrainment, this study focused on a typical river-pump intake. A turbulence model was developed based on the Euler-Lagrange method and the variable of helicity was introduced to define the zone of the river from which water is withdrawn and organisms are entrained. The process of simulated hydraulics on organism withdrawal was validated by physical experiments using artificial fish eggs under various river flow and intake flow conditions. The data set contains the velocity data measured by the physical model test, the entrainment amount measurement data and the entrainment simulation data under different flow conditions. In addition, the survey data of fish eggs and larvae in the study river section mentioned in the research article are attached.
https://doi.org/10.5061/dryad.69p8cz9d1
Description of the data and file structure
This workbook contains six sheets in total:
- The first three sheets, named Plane flow field, Longitudinal section flow field, and Cross section flow field, respectively, present flow field measurement data from physical model experiments and simulation data from the CFD model. The flow field in the physical experiments was measured using an ADV (Acoustic Doppler Velocimeter), while the simulation data were derived from model calculations. This portion serves as the dataset for validating the CFD model. X/Y represents the coordinates of the measurement points, U/V/W refers to the three-directional flow field data measured by the ADV, and U0/V0/W0 corresponds to the simulated flow field data from numerical calculations.
- The fourth sheet, named Entrainment experiment quantity, contains data on the entrainment quantities of artificial eggs and larvae under different scenarios.
- The fifth sheet, Model calculation result, is divided into two sections:
The left section (Prediction results of entrainment effect - JGT pumping station) provides data on the entrainment depth, entrainment width, entrainment quantity, and entrainment proportion under different flow rate conditions from numerical simulations.
The right section (Comparison of entrainment quantities between different intake box designs) includes comparative data on entrainment quantities under different flow rate scenarios for a newly designed intake box, developed in the study to mitigate the entrainment process.
- The sixth sheet, Amount of fish eggs, contains survey data on the quantity of fish eggs and larvae in the study river section (Zhu et al. 2024), as mentioned in the research paper.
- Zhu, J., Cao, J., Zhou, T., Yang, Z., Zhu, Z.Q. and Zhu, Q.G. (2024) Early Stage Resource Status of Fish Species Spawning Drifting Eggs in the Jiangjin Section of the Upper Yangtze River and Their Hydrologic Requirements. Journal of Hydroecology 45(1).https://doi.org/10.15928/j.1674-3075.202311080319