Integration of autocad with laser doppler anemometry (LDA)

Mumtaz A. Kamala, Robert F. Boucher, Hani Haider

Research output: Contribution to conferencePaperpeer-review


Laser Doppler Anemometry (LDA) is a powerful tool for non-intrusive, single point flow measurements. The limitation of probing only one point in the flow at any one time requires costly hardware to traverse what is already expensive LDA equipment. Even with high investments in capital cost, it is never that flexible to define traverses to scan a flow field, nor automate the driving of a traverse system to implement them, or interactively and conveniently visualise the measured results. In this paper, the subject flow field under study was the flow round the complex boundaries of the cones of a drill bit used in the oil industry. To overcome the difficulties of traversing, CAD/CAM techniques were employed which are standard for use in manufacturing. 'AutoCad' was used to draw, visualise and interactively choose measuring stations of the complicated 3-D flow domain. Downloading data automatically through a suitable software interface, the traverse hardware was driven as if it was a standard Computer Numerically Controlled (CNC) machine. The LDA measurements themselves were up-loaded back to the CAD environment to offer a most flexible way to visualise the flow.

Original languageEnglish (US)
Number of pages6
StatePublished - 1995
Externally publishedYes
EventProceedings of the 1995 ASME/JSME Fluids Engineering and Laser Anemometry Conference and Exhibition - Hilton Head, SC, USA
Duration: Aug 13 1995Aug 18 1995


OtherProceedings of the 1995 ASME/JSME Fluids Engineering and Laser Anemometry Conference and Exhibition
CityHilton Head, SC, USA

ASJC Scopus subject areas

  • Engineering(all)


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