geometrical similarity

geometrical similarity

[¦jē·ə¦me·trə·kəl ‚sim·ə′lar·əd·ē]
(fluid mechanics)
Property of two fluid flows for which a simple alteration of scales of length and velocity transforms one into the other.
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References in periodicals archive ?
The first report described a case in which the combustion chamber geometry and nozzle hole specifications were reduced based on the similarity ratio (Figure 1, referred to below as "geometrical similarity").
To avoid higher system costs caused by design restrictions due to the use of smaller nozzle holes, this second report identifies the required conditions to achieve similar characteristics per nozzle hole, while maintaining the diameter and number of the nozzle holes (this concept is referred to below as the "geometrical similarity of the spray").
GEOMETRICAL SIMILARITY AND GEOMETRICAL SIMILARITY OF SPRAY
This section describes the geometrical similarity concept discussed in the first report and the approach that was constructed to help resolve the issues of this concept, called the geometrical similarity of the spray.
The geometrical similarity concept of the first report [12] can be explained using Equations (1) to (8).
Sterrett considers the way Wittgenstein employs the development of sound recordings in discussing logical form in the Tractatus (Wittgenstein does not use examples in which similarity is based on visual or geometrical similarity): the features of the symphony from the standpoint of logical structure are those features of the symphony that are used in applying the rule by which the score is obtained from the symphony.
For K to be material constant it is necessary to maintain geometrical similarity by increasing the depth of foundation h in proportion to the contact width a.
In the modelling process the principle of geometrical similarity with the scale factor m = 1/100 is used.
How can we study multiple batch sizes and blade designs quickly and efficiently while retaining geometrical similarity in blade design?
It is also desirable to have the capability for maintaining geometrical similarity or providing for specific changes in geometrical characteristics upon scaleup.
The modular nature of the blades either preserves geometrical similarity or provides for geometrical variation at different batch sizes.
Starting from the geometrical similarity of turning process, where cutting tools with radius in the tool centre are used and from the mathematical model (2) of roughness (Braha et al., 2003) one will analyze figure no.

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