Database: ridge-type roughness - from turbulent channel flow to internal combustion engine

doi:doi:10.35097/1545

Database: ridge-type roughness - from turbulent channel flow to internal combustion engine

TechnicalRemarks: -------------------------------------------------------------------------------- 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 | |------------------------------|--------------| | | | refpiston.dat | engine | PTV | refdns.dat | channel | DNS | | | | | tridpdx.dat | channel | dPdx | trihw12.dat | channel | HW | trihw18.dat | channel | HW | trihw37.dat | channel | HW | trihw58.dat | channel | HW | tridns.dat | channel | DNS | | | | | trispiv.dat | channel | sPIV | tripiston.dat | engine | PTV | | | rectdpdx.dat | channel | dPdx | recthw.dat | channel | HW | rectdns.dat | channel | DNS | | | | | rectpiston.dat | engine | PTV flow type | data source | Reb | Quantities stored | -----------------|-----------------|----------------------------------------------------| | | | | | 15000 | y,y/d99,z,z/d99,U,V,U/U0,(V-V0)/U0 | | 18000 | y/delta,U/U0,uu/U0^2,vv/U0^2, | | | | ww/U0^2,uv/U0^2 |
| | | |
| 5000-85000 | Reb, Retau, Cf | | 12000 | z/delta,y/delta,U/U0 | | 17900 | y/delta,z/delta,U/U0,urms/U0 | | 37500 | z/delta,y/delta,U/U0 | | 58200 | z/delta,y/delta,U/U0 | | 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 | | 18000 | y,z,U,V,W | | 15000 | y,y/d99,z,z/d99,U,V,U/U0,(V-V0)/U0 | | | | | | 5000-85000 | Reb, Retau, Cf | | 18000 | y/delta,z/delta,U/U0,urms/U0 | | 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 | | 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

                                                lars.deyn@kit.edu

BibTex:

@dataset{Deyn_Lars_H_von_and_Schmidt_Marius_and_Stroh_Alexander_2023,
    abstract = {TechnicalRemarks: --------------------------------------------------------------------------------
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

--------------------------------------------------------------------------------------------
                                                    lars.deyn@kit.edu},
    author = {Deyn, Lars H. von and Schmidt, Marius and Stroh, Alexander},
    doi = {10.35097/1545},
    institution = {RADAR},
    keyword = {'fluid mechanics', 'secondary flows', 'strip-type roughness'},
    title = {Database: ridge-type roughness - from turbulent channel flow to internal combustion engine},
    url = {https://service.tib.eu/ldmservice/vdataset/rdr-doi-10-35097-1545},
    year = {2023}
}