Unsteady Pressure-Sensitive Paint (uPSP) Data Processing Software

The upsp package consists of a suite of applications for processing high-speed video files from fast-response, pressure-sensitive paint camera systems. It also provides a Python API for developers to extend and modify functionality. The software is maintained by NASA and used as part of several uPSP systems deployed at its small- and large-scale wind tunnel test facilities.

Fig. 1 shows one frame of a video animation of the pressure-time history produced by the uPSP software for a test event at the NASA Ames 11-ft transonic wind tunnel of the Space Launch System (SLS) Block 1B crew configuration (source).

Fig. 1 One frame of a video animation of time-varying surface pressure measured by uPSP.

Contents:

• Installation
  • Prerequisites
  • Obtaining source code
  • Build and install
  • Unit Tests
• Quick Start
  • Producing surface pressure time history for one test condition
  • Batch processing multiple test conditions
  • Guidelines for setting NAS PBS job parameters
• Applications
  • upsp-extract-frames
  • upsp-external-calibration
  • psp_process
• File Formats
  • High-speed camera video formats
  • Surface grid definition
  • “Targets” file (*.tgts)
  • Steady-state surface pressure file
  • Wind Tunnel Data (*.wtd)
  • Unsteady PSP gain calibration
  • Camera-to-tunnel calibration
  • psp_process configuration (*.inp)
  • External camera calibration configuration parameters
  • Batch processing configuration
  • Output files from psp_process
• Terminology
• Third-Party Dependencies
• Software Design
  • Software Architecture
  • Pipeline Application Design Details
  • Choice of software language(s)
• Known Issues
• Citing this work
• upsp Python API
  • upsp.cam_cal_utils
  • upsp.intensity_mapping
  • upsp.kulite_comparison
  • upsp.processing
  • upsp.target_localization

Indices and tables:

• Index

• Module Index

• Search Page