From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Experiments on the flow of petrol through various nozzles.
| Identifier | ExFiles\Box 36\1\ scan 056 | |
| Date | 9th May 1917 guessed | |
| -1- X. 2907 - FURTHER EXPERIMENTS ON FLOW OF LIQUIDS THROUGH NOZZLES. Liquid ----- Petrol. Nozzles as specification. Nozzles horizontal. Heads of liquid over nozzles:- I. 17.81" II. 12.81" III. 7.81" Discharges in c.c. per minute. Nozzles radiused at one end to a radius equal to bore diameter, and sharp edged at other end. "R.in" signifies rounded entrance to nozzle. "R.out" signifies sharp-edged entrance to nozzle. (a) Table of discharges given. (b) Tables of coefficients of discharge for all the nozzles for each of the three heads also given. These coefficients are ratios of actual quantity discharged to ideal quantity reckoned on ideal velocity due to head and cross sectional area of nozzle. (c) Table of average coefficient of discharge for the three heads also given. | ||