Title

Computatonal Fluid Dynamics Benchmark Validation Experiment of Plenum-to-Plenum Flow Through Vertical Heated Parallel Channels

Description

This research is focused on the thermal mixing region of parallel jets entering an upper plenum. The highly-coupled thermal-fluid physics are relevant to plenum-to-plenum flow in High Temperature Gas Reactors such as thermal striping phenomena. Experimentally measured boundary conditions and system response quantities for use in Computational Fluid Dynamics were tabulated and published for public use.

Document Type

Dataset

DCMI Type

Dataset

File Format

.txt, .zip, .stl, .stp, .x_t, .csv

Viewing Instructions

Files will need to be unzipped.

Publication Date

12-3-2020

Funder

U.S. Dept. of Energy

Publisher

Utah State University

Award Number

U.S. Dept. of Energy 0008562

Methodology

A new wind tunnel test section was designed, built, and installed into the Rotatable Buoyancy Tunnel (RoBuT) at Utah State University for these experiments. The geometry was triple parallel channels separating an upper and lower plena. The inflow velocity from the channels into the upper plenum was measured using Stereo Particle Image Velocimetry. The velocity in the mixing region was measured using two-component Particle Image Velocimetry. Embedded thermocouples were used to measure surface temperature in the outter tunnel walls and channel surfaces. The pressure drop across the wind tunnel was measured using a 1-Torr Baratron. Thin-wire thermocouple probes were used to measure the air temperature in the upper plenum. 9 experimental cases were studied by varying the pressure drop across the test section with a blower or by selectively heating the channels with constant heat flux.

Referenced by

Parker, A. W., 2020. “Computational Fluid Dynamics Benchmark Validation Experiment of Plenum-to-Plenum Flow Through Vertical Heated Parallel Channels”. PhD Dissertation, Utah State University.

Language

eng

Code Lists

Variable names in data files:

std_ = Standard deviation of variable_

T = Temperature measurement

t = Time

U = x-component of velocity

u_ = Uncertainty of variable_

V = y-component of velocity

W = z-component of velocity

X = x-position

Y = y-position

Z = z-position

See README.txt file.

Comments

There are 10 .zip folders that contain the geometry and experiment measurements. The data are organized by 9 parent .zip folders that indicate the experimental conditions for each case. The parent folders identify the pressure drop across the wind tunnel test section due to the blower at ambient conditions as well as which channels were heated. For example, the file dP6_HCH. zip contains all the experimental measurements with a blower set at constant rotations per minute to cause a pressure drop of 6 Pa at ambient temperatures and HCH indicates the outer channels were heated and the inner channel was not.

The files in the parent .zip folders are the experimentally measured boundary conditions and system response quantities. The name of each file indicates the measured parameter. Instantaneous velocities through the entire dataset are tabulated in the SRQ_Velcoity##.csv files, ## represents the chronological order of these files. These velocity files were separated so they can be openned by standard modern computers.

The experiment geometry files are contained in the 'P2P_AsBuilt' folder. Two tab delimited files contain the experiment measurement locations in global coordinates that can be used to generate point clouds for solid modelling. The file 'AsBuilt_Measure' are the coordinates of the actual measured locations and 'AsBuilt_Complete' are the actual measured locations and assumed connecting points. The as-built model is available as StereoLithography (*.stl), STEP (*.stp), and Parasolid (*.x_t).

The measured and calculated quantities are archived as comma separated values (*.csv) files. The column header describes the quantity and the units are in square brackets. Instantaneous data are reported with a time while averaged quantities are not. All data except the atmospheric conditions are tabulated with global coordinates. All data are recorded with an uncertainty value.

Disciplines

Mechanical Engineering

License

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.

Additional Files

README.txt (4 kB)
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dP0_CCC_Ambient_Conditions.xlsx (8 kB)
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dP0_CCC_SRQ_Velocity01.xlsx (323658 kB)
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dP0_CCC_SRQ_Velocity08.xlsx (324563 kB)
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dP0_CCC_SRQ_Velocity09.xlsx (323533 kB)
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dP0_CCC_SRQ_Velocity10.xlsx (321155 kB)
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dP0_CCC_TC_Array_Temp.xlsx (4091 kB)
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dP0_CCC_Tunnel_Pressure_Drop.xlsx (7 kB)
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dP0_CCC_Wall_Temp.xlsx (10 kB)
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dP0_HCH_Ambient_Conditions.xlsx (8 kB)
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dP0_HCH_Channel_Temp.xlsx (14 kB)
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dP6_CCC_Tunnel_Pressure_Drop.xlsx (7 kB)
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dP37_HHH_TC_Array_Temp.xlsx (4125 kB)
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dP37_HHH_Tunnel_Pressure_Drop.xlsx (7 kB)
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MD5: 69b4eec0b342dd8e2ea4b43d2386d41b

P2P_AsBuilt_Measured.txt (46 kB)
MD5: b2cf4f3615cf623cd9bbb17c3cdd0df5

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