Cambridge-Sandia Swirl Burner Database
Cambridge-Sandia Swirl Burner Database
This document describes the Cambridge-Sandia Swirl burner (SwB) used in experiments detailed in the references, and the format and usage of the data generated during those experiments. A full description of the experimental set up can be found in the relevant papers and here.
The burner consists of three concentric tubes, the inner one capped by a ceramic bluff-body. The inner and outer channels are fed by separate flow meters with given equivalence ratios.The outer mixture can be split between a tangential or axial inlet, leading to variable swirl. An outer, low velocity flow surrounds the burner.
Side view
Top view
Case | Swirl flow ratio (%) | ϕi (-) | ϕo (-) | SR (-) |
---|---|---|---|---|
SwB1 | 0 | 0.75 | 0.75 | 1 |
SwB2 | 0.25 | 0.75 | 0.75 | 1 |
SwB3 | 0.33 | 0.75 | 0.75 | 1 |
SwB5 | 0 | 1 | 0.50 | 1 |
SwB6 | 0.25 | 1 | 0.50 | 1 |
SwB7 | 0.33 | 1 | 0.50 | 1 |
SwB9 | 0 | 1.125 | 0.375 | 1 |
SwB10 | 0.25 | 1.125 | 0.375 | 1 |
SwB11 | 0.33 | 1.125 | 0.375 | 1 |
Filename: Condition_[case number]_Axial_Position_[distance from inlet]_mm_Mean_And_ Variances.csv.
Data format: see table below.
Data: burnerAverages.zip.
Variable | Name | Description | Units |
---|---|---|---|
x | x | distance from the centreline | mm |
Yi | i (species name) | species mass fraction | - |
Α | alpha | thermal diffusivity | m2/s |
c | c | progress of reaction based on temperature | - |
∇ c | dc | surface density function | 1/m |
χ | chi | scalar dissipation | 1/s |
ρ | rho | density | kg/m3 |
T | T | temperature | K |
∇ T | dT | temperature gradient | K/m |
ϕ | phi | equivalence ratio | - |
Z | Z | mixture fraction | - |
All mean and RMS for the LDA results are given as reduced moments of velocities in the two directions as text files. Z is the axial position, with velocity components U, V and W for the radial, axial and tangential velocities, respectively.
Filename: [c]SwB[case number]_z[axial position in mm]_[velocity i][velocity j]_MeanAndRMS.txt
Data format: see table below.
Data: LDA_ReducedMoments.zip .
Column | Name | Description | Units |
---|---|---|---|
Radial position | x | distance from centerline | mm |
Axial position | z | distance from burner exit | mm |
U velocity | U | velocity in radial direction | m/s |
V velocity | V | velocity in axial direction | m/s |
W velocity | W | velocity in tangential direction | m/s |
All mean and RMS for the PIV results are given as reduced moments of velocities in the two directions as text files.
Filename: Mean quantities: [c]SwB[case number]_Mean RMS quantities: [c]SwB[case number]_RMS
Data format: see table below.
Data: LSPIV_average.zip .
Column | Name | Description | Units |
---|---|---|---|
Radial position | x | distance from centerline | mm |
Axial position | z | distance from burner exit | mm |
U velocity | U | velocity in radial direction | m/s |
V velocity | V | velocity in axial direction | m/s |
Bluff body surface temperatures are available as a function of radial position
Filename: radial_profile_SwB[case number]
Data format: see table below.
Data: SurfaceTemps.zip .
Column | Name | Description | Units |
---|---|---|---|
Radial position | r | distance from centerline | mm |
Temperature | T | temperature | K |
Mean standard deviation | meanstddeviation | variance averaged over a circle of a given radius | K |
Standard deviation of means | stddeviationofmeans | variance relative to the mean radial temperature | K |
@article{Zhou2013, author = {Zhou, Ruigang and Balusamy, Saravanan and Sweeney, Mark S. and Barlow, Robert S. and Hochgreb, Simone}, doi = {10.1016/j.combustflame.2013.04.007}, issn = {00102180}, journal = {Combustion and Flame}, keywords = {Laser Doppler anemometry,Particle image velocimetry,Velocity field,co-annular bluff body burner,lean stratified combustion,turbulent combustion}, month = oct, number = {10}, pages = {2017--2028}, publisher = {The Combustion Institute.}, title = {{Flow field measurements of a series of turbulent premixed and stratified methane/air flames}}, url = {http://linkinghub.elsevier.com/retrieve/pii/S001021801300151X}, volume = {160}, year = {2013} }
@article{Sweeney2012, author = {Sweeney, Mark S. and Hochgreb, Simone and Dunn, Matthew J. and Barlow, Robert S.}, doi = {10.1016/j.combustflame.2012.05.014}, issn = {00102180}, journal = {Combustion and Flame}, keywords = {lean stratified combustion,turbulent combustion}, month = jul, number = {9}, pages = {2912--2929}, publisher = {The Combustion Institute.}, title = {{The structure of turbulent stratified and premixed methane/air flames II: Swirling flows}}, url = {http://linkinghub.elsevier.com/retrieve/pii/S0010218012001794}, volume = {159}, year = {2012} }
@article{Sweeney2012a, author = {Sweeney, Mark S. and Hochgreb, Simone and Dunn, Matthew J. and Barlow, Robert S.}, doi = {10.1016/j.combustflame.2012.06.001}, issn = {00102180}, journal = {Combustion and Flame}, keywords = {lean stratified combustion,turbulent combustion}, month = jun, number = {9}, pages = {2896--2911}, publisher = {The Combustion Institute.}, title = {{The structure of turbulent stratified and premixed methane/air flames I: Non-swirling flows}}, url = {http://linkinghub.elsevier.com/retrieve/pii/S0010218012001800}, volume = {159}, year = {2012} }