Browse Publications Technical Papers 2019-01-1975

On-Ground Cold Soak Fuel Frost Modeling 2019-01-1975

A common phenomenon that may be observed during an aircraft operation is the formation of an on-ground cold soak fuel frost (CSFF), following a landing. This frost formation occurs as integral tanks located on an aircraft’s wings are subjected to low temperatures for a prolonged period typically at high altitude, which allows the fuel to reach low temperatures. If at the landing airport, the aircraft is exposed to a high-humidity ambient CSFF may occur. This sequence of events allow the water to desublimate into ice and to build up onto the wing surface. This frost formation, depending of its extend, may affect the aircraft performance, affecting safety or the aircraft dispatchability. In this paper a cold soak fuel frost modeling for an aircraft wing tank is presented. Numerical prediction are compared with experimental data and qualitative verification for the frost formation and decay during a landing is presented. The numerical simulation showed good agreement between experimental observation and modeling. In addition, an in-flight evaluation was performed where two frost formations, obtained with a Monte Carlo method, was defined and represented by different grit types.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Attention: This item is not yet published. Pre-Order to be notified, via email, when it becomes available.
Members save up to 40% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.