Field procedure for measurement of flightline offset in forestry spraying

Some general remarks are presented on the design of a definitive field experiment on windborne droplet drift and deposition in aerial forestry spray applications. The role of the uncontrollable parameters, i.e. forest properties and, in particular, meteorology, is emphasized. Then, the variables in one aspect of the problem, the flightline...

Sediment Transport: an Appraisal of Available Methods: VOLUME 1: Summary of Existing Theories: VOLUME 2: Performance of Theoretical Methods when Applied to Flume and Field Data

In 1972 Ackers and White (Refs 24 and 25) proposed a new sediment transport theory and tested the theory against f1ume data. This data consisted of about 1000 measurements with particle sizes in the range 0.04 < D(mm) < 5 and sediment specific gravities in the range 1.07 < s < 2.65. Subsequent phases in this investigation have included (i) the...

Tables of derivatives to extend the zero incidence cone tables to intermediate mach numbers and cone angles

Derivatives witb respect ta cone semi-angle and free-stream Mach number are presented for fight of tbe flow field quantities tabulated in Reference 1 for the case of supersonic flow of an ideal gas (y = 1. 400) about circular cones at zero incidence. Tbe derivatives may be used in a first-order expansion ta comp.tte the essential properties of...

Flow separation about ellipttic cones at incidence

A method is presented for calculating the separation of a laminar incompressible boundary layer about a right elliptic cone at incidence. Slender body theory is used to formulate a conical surface flow field, and Cooke's small cross-flow method is then applied to the boundary layer. The separation !ine is shown to lie a long a generator. When...

An application of Cooke's method to the laminar incompressible boundary layer on a right circular cone at incidence

A water tunnel investigation of the flow separation about circular cones at incidence