diameter group

diameter group

[dī′am·əd·ər ‚grüp]
(mechanical engineering)
A dimensionless group, used in the study of flow machines such as turbines and pumps, equal to the fourth root of pressure number 2 divided by the square root of the delivery number.
References in periodicals archive ?
was promoted to vice president and business group director of LAN's Infrastructure Large Diameter Group, where he will oversee and coordinate business development efforts, production and operations.
Each tree was cut and delimbed with a chainsaw, and disc specimens were cut from a sample of each diameter group as described below.
A subset of discs was selected from each diameter group to determine the bark share: 10 trees from Group 1, 5 trees from Group 2, and 3 trees from Group 3.
Figure 3 presents the correlation between bark share (y axis) and sample point of trees (x axis; distance from cut [m]) by diameter group.
The durability of the pellets produced from each diameter group differed depending on when the pellets were tested (Table 10).
Three different diameter groups of pine were tested, and none exceeded the ash content limit (0.
There were only 33 logs in the 6-inch diameter group due to log availability and time considerations.
1980, Holt 1993) because they lack these diameter groups.
26) on average high fibre diameter groups (Strongwool sheep; HL+HH) had significantly (p<0.
05) higher in the low coefficient of variation of fibre diameter groups (LL+HL) than high coefficient of variation of fibre diameter groups (LH+HH) two weeks after commencement of cortisol injection.
The panel moisture sorption for the small (S) and large (L) log diameter groups with two replicates and six specimens for each replicate was closely monitored from 30 percent to 90 percent RH for 16 days.