A Geometric Modeller for Turbomachinery Applications

  • B. Ozell
  • R. Camarero
Conference paper


This paper describes a software package tailored for the geometric modelling of turbines, as well as for the automatic generation of a body-fitted coordinate grid. The package consists of four programs used respectively for:
  1. 1.

    The creation and the modification of a model; the designer can “edit” the model by means of commands whose basic entities are points, profiles, blades,the hub and the shroud.

  2. 2.

    The refinement of the model by the distribution of points over each profile defining the blade, and then by the interpolation of new intermediate profiles between the hub and the shroud.

  3. 3.

    The construction of surfaces delimiting the blade-to-blade channel boundaries (the computational domain).

  4. 4.

    The calculation of a body-fitted coordinate system, inside the channel, by the solution of a system of differential equations.


A set of modeled turbines is shown to illustrate the results of each step.


Curvilinear Coordinate System Basic Entity Fluid Dynamic Calculation Inlet Plane Refined Profile 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. Camarero R, Reggio M (1981) Three-dimensional Body-fitted Coordinates for Turbomachine Applications. In: Ghia KN, Muller TJ, Patel BR (eds) Computers in Flow Predictions and Fluids Dynamics Experiments. ASME, New York, p 51Google Scholar
  2. Thompson JF (1978) Numerical Solutions of Flow Problems using Body-fitted Coordinate Systems. In: Lecture Series 1978–4, Computational Fluid Dynamics. VKI, Brussels.Google Scholar

Copyright information

© Springer-Verlag Tokyo 1985

Authors and Affiliations

  • B. Ozell
    • 1
  • R. Camarero
    • 1
  1. 1.CAD CenterEcole PolytechniqueSuccursale ACanada

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