2026-10-13T15:09:30Zhttps://www.radar-service.eu/oai/OAIHandler10.35097/15452026-10-09T10:50:56Zradar4kit
https://dx.doi.org/10.35097/1545
Deyn, Lars H. von
Schmidt, Marius
Stroh, Alexander
Database: Ridge-type roughness - from turbulent channel flow to internal combustion engine
Karlsruhe Institute of Technology
2023
Engineering
dataset
Dataset
info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nd/4.0/legalcode
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Database: Ridge-Type Roughness - From Turbulent Channel Flow to Internal Combustion Engine
--------------------------------------------------------------------------------
This database provides the data presented in the manuscript "Ridge-type
roughness – from turbulent channel flow to internal combustion engine".
(DOI:10.1007/s00348-021-03353-x)
It features experimental and numerical data on two ridge-type geometries
specified in figures 1 and 2.
The data is provided as .dat files separated for geometries (trapezoidal grooves,
rectangular grooves) and for the individual data sources (DNS, PTV, HW, dPdx, PIV).
An overview of all provided files is given in table 1. The nomenclature stated in
table 1 is the same as introduced in the manuscript in table 1.
figure 1: trapezoidal grooves
```
_____s_____
/\ /\ |
/ \ / \ |h
___/ \_____/ \_|___
```
| ID | flow type | s/δ | h/δ | tip angle[°] |
|-----------------------------------------------|--------------|--------|---------|----------------|
| trixx | channel | 2.16 | 0.158 | 54.8 |
| trixx | engine | 1.52 | 0.376 | 65 |
______________________________________________________________
figure 2: rectangular grooves
```
_______s______
____ ____
| | | |
| | | | h
___| |_______| |_____
__w__
```
| ID | flow type | s/δ | h/δ | w/δ |
|-----------------------------------------------|--------------|---------|--------|---------|
| rectxx | channel | 1.22 | 0.078 | 0.238 |
| rectxx | engine | 1.12 | 0.174 | 0.562 |
__________________________________________________________
table 1: database case overview
| filename | flow type | data source | Reb | Quantities stored |
|------------------------------|--------------|-----------------|-----------------|----------------------------------------------------|
| | | | | |
| refpiston.dat | engine | PTV | 15000 | y,y/d99,z,z/d99,U,V,U/U0,(V-V0)/U0 |
| refdns.dat | channel | DNS | 18000 | y/delta,U/U0,uu/U0^2,vv/U0^2, |
| | | | | ww/U0^2,uv/U0^2 |
| | | | | |
| tridpdx.dat | channel | dPdx | 5000-85000 | Reb, Retau, Cf |
| trihw12.dat | channel | HW | 12000 | z/delta,y/delta,U/U0 |
| trihw18.dat | channel | HW | 17900 | y/delta,z/delta,U/U0,urms/U0 |
| trihw37.dat | channel | HW | 37500 | z/delta,y/delta,U/U0 |
| trihw58.dat | channel | HW | 58200 | z/delta,y/delta,U/U0 |
| tridns.dat | channel | DNS | 18000 | y/delta,z/delta,U/U0,V/U0,W/U0, |
| | | | | uu/U0^2,vv/U0^2,ww/U0^2,uv/U0^2, |
| | | | | uw/U0^2,vw/U0^2 |
| trispiv.dat | channel | sPIV | 18000 | y,z,U,V,W |
| tripiston.dat | engine | PTV | 15000 | y,y/d99,z,z/d99,U,V,U/U0,(V-V0)/U0 |
| | | | | |
| rectdpdx.dat | channel | dPdx | 5000-85000 | Reb, Retau, Cf |
| recthw.dat | channel | HW | 18000 | y/delta,z/delta,U/U0,urms/U0 |
| rectdns.dat | channel | DNS | 18000 | y/delta,z/delta,U/U0,V/U0,W/U0, |
| | | | | uu/U0^2,vv/U0^2,ww/U0^2,uv/U0^2, |
| | | | | uw/U0^2,vw/U0^2 |
| rectpiston.dat | engine | PTV | 15000 | y,y/d99,z,z/d99,U,V,U/U0,(V-V0)/U0 |
______________________________________________________
PTV: particle tracking velocimetry
DNS: direct numerical simulation
dPdx: pressure-drop measuremts
HW: hot-wire measurements
sPIV: stereoscopic particle image velocimetry
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lars.deyn@kit.edu
strip-type roughness
secondary flows
fluid mechanics
10.5445/IR/1000140474
KITopen-DOI
application/x-tar