DNS 1-5 Statistical Data: Difference between revisions
| Line 29: | Line 29: | ||
* the skin friction coefficient <math>C_f</math> | * the skin friction coefficient <math>C_f</math> | ||
The pressure coefficient is defined as <math>C_{p}=2(p-p_{chk})/(\rho_{ref} u_{ref}^2)</math>, where | |||
<math>p_{chk}</math> is the pressure at wall at the checkpoint <math>x/H=-3.5</math>, while the skin friction coefficient is defined as <math>C_{f}=2(\tau_{wall})/(\rho_{ref} u_{ref}^2)</math>. <math>u_{ref}</math> and <math>\rho_{ref}</math> are the velocity and density at the reference conditions (see [[Lib:UFR_3-36_Test_Case#table2|UFR 3-36: Table 2]]), respectively. | <math>p_{chk}</math> is the pressure at wall at the checkpoint <math>x/H=-3.5</math>, while the skin friction coefficient is defined as <math>C_{f}=2(\tau_{wall})/(\rho_{ref} u_{ref}^2)</math>. <math>u_{ref}</math> and <math>\rho_{ref}</math> are the velocity and density at the reference conditions (see [[Lib:UFR_3-36_Test_Case#table2|UFR 3-36: Table 2]]), respectively. | ||
Both coefficients have been obtained by averaging along the span direction the time averaged solution. | |||
Revision as of 14:10, 1 February 2023
Statistical data
In this section the relevant statistical data for the flow on the smooth bump computed with MIGALE is given. The reported data is the one mentioned in Table 1 of the list of desirable quantities (see Hillewaert et al.) and also specified here.
The data is available as:
- In .pvtu (ASCII) format as volumetric data.
- In CSV (text) format as vertical profiles at various x-positions.
Volume data
Volumetric data on the statistics computed for the whole computational domain are provided here. For more information regarding the stored quantities and the storage format, please refer to the storage format guidelines.
The available files are:
- mean pressure and velocity components (64.7 GB).
- Reynolds stress components (72.6 GB).
- velocity triple correlation (106.9 GB).
- pressute-velocity correlation (48.3 GB).
- Taylor microscale and Kolmogorov length and time scales (46.8 GB).
Profile data
Additional data
The following averaged quantities are provided along the solid wall:
- the pressure coefficient
- the skin friction coefficient
The pressure coefficient is defined as , where is the pressure at wall at the checkpoint , while the skin friction coefficient is defined as . and are the velocity and density at the reference conditions (see UFR 3-36: Table 2), respectively. Both coefficients have been obtained by averaging along the span direction the time averaged solution.
| wall_dns.csv |
 |
|
| Figure 10: Pressure and skin friction coefficients on the solid wall | |
|---|---|
Contributed by: Francesco Bassi, Alessandro Colombo, Francesco Carlo Massa — Università degli studi di Bergamo (UniBG)
© copyright ERCOFTAC 2024