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).
Chart showing the effect of turbulence on air outlet temperatures for different fluids.
| Identifier | ExFiles\Box 149a\2\ scan0307 | |
| Date | 23th August 1935 guessed | |
| CHART SHOWING EFFECT OF TURBULANCE ON AIR OUTLET TEMPS. BY THEORY THE WATER AND ETHYLENE GLYCOL HAVE TURBULENT FLOW. THE OIL HAS STREAMLINE FLOW (REYNOLDS NUMBER BELOW 500) AIR FLOW 1000 CU.FT/MIN/SQ.F.A. LIQUID VEL. APPROX. 3.7 FT/SEC. Y-AXIS: HEIGHT OF ELEMENT INCHES SCALE: BOTTOM, 0, 5, 10, TOP X-AXIS: AIR TEMP RISE THRO ELEMENT °F SCALE: 10, 20, 30, 40 CURVES: OIL, ETHYLENE GLYCOL, WATER Faint circular stamp in center: ROLLS-ROYCE LTD. HUCKNALL WORKS | ||