MEASUREMENT OF PEAK TEMPERATURE RISE ABOVE HELICOPTER PLATFORMS DUE TO HOT GAS PLUMES: INTERPRETATION AND EVALUATION OF REGULATIONS ON TURBULENCE AND HOT GAS PLUMES

摘要

Turbulence and temperature rise criteria for helicopter platforms are defined in CAP 437. To the authors opinion there is no discussion on the relevance of these criteria. Guidance on the assessment techniques should be improved however as the current guidance seems to advise some techniques that cannot evaluate the physical properties defined in the criteria. Also guidance on the practical use of the results of the temperature rise assessment would be very useful. At the current state of the art the assessment of the turbulence and temperature rise criteria can only be made in a properly scaled buoyant plume wind tunnel experiment. Suggestions for improvement of the guidance on interpretation and evaluation are given.