Notes and comments on some particular features of wind-tunnel design following measurements of flow distribution, wall pressures etc. in the N.P.L. 7 ft (low turbulence) wind tunnel

Abstract

Accessible information about the performance of existing wind tunnels is far from being adequate. Once a tunnel is constructed the subject too often becomes a matter of low priority or else such information as is obtained is not usefully analysed and recorded. In the present instance the acquisition of the data was in the main intended to assist an appraisal of the consequences of some imminent modifications. It showed promise, however, of being useful in relation to modifications in mind for other tunnels. On further examination it also appeared to provide a suitable framework for discussing various aspects in a rather more general sense. This record of information and comment is by no means comprehensive but is set out in a form intended to be suitable for possible amplification later.