The design of spires for wind simulation.

A short note giving formulae for the design of spires for use in simulating the planetary boundary layer. Gives expressions for the height and base length of triangular spires which will produce given values of the boundary layer thickness and power-law exponent. Gives comparisons of calculated values with experimental data.

Model studies of wind effects - a perspective on the problems of experimental technique and instrumentation.

Gives a brief historical review of the development of wind engineering as a discipline. Discusses the simulation of wind loads on buildings, the development of boundary layer wind tunnels and problems in modelling the natural wind. Describes modelling of the aerolastic behaviour of buildings andof stack gas diffusion. Describes instrumentation and measurement techniques. Indicates areas requiring further development.

Wind tunnel pressure measurements on the Aylesbury low-rise housing estate.< Part III. Additional experiments.

Describes further experiments from the wind tunnel simulation of wind pressures on the Aylesbury housing estate. These experiments are not concerned with the acquisition of further data, but are designed to examine the validity of measurements.< Discusses the effect of varying observation and averaging times. Reports results of experiments, varying these times, but finds no observable trends in the dispersion results.

On simulating the atmospheric boundary layer in wind tunnels

Contains two papers reprinted from the Jnl. of Ind. Aerodynamics:-< 1) Wind-tunnel simulation of the adiabatic atmospheric boundary layer by roughess, barrier and mixing-device methods.< Discusses the philosophy of roughness, barrier and mixing-device simulation methods. Illustrates methods by measurements of simulations in the B.R.E.boundary layer wind tunnel.