A photogrammetric method for measuring transient frost surface roughness.

Cold-soaked fuel frost (CSFF) is a form of aircraft wing contamination that results in aerodynamic degradation. Unless a certification exemption for a specific aircraft model is provided by the FAA, an operator of an aircraft is not allowed to takeoff with CSFF on aircraft wing surfaces. To assist manufacturers in the design of air vehicles and to assist the FAA in evaluating exemption requests, frost roughness evolution must be characterized and modeled. However measuring transient frost roughness is difficult because of the optical and material properties of frost. This experimental investigation presents a nonintrusive, in-situ method of measuring frost roughness using structure-from-motion photogrammetry. This method was validated with fabricated rough surfaces and was used on a closed-loop psychrometric wind tunnel that is capable of producing frost formations in various environmental conditions. The resulting roughness parameters and detailed height distributions were analyzed to determine the effects of each environmental variable.

Name thesis:degree_name

M.S.M.E.

Level thesis:degree_level

Masters

Grantor

Baylor University.

Year dc:date.issued

2018

Author dc:creator

• Miyauchi, Taber Scott, 1994-

Advisor dc:contributor.advisor

• McClain, Stephen Taylor.

• Surface roughness.
• Photogrammetry.
• Cold-soaked fuel frost.
• Aircraft takeoff.

Statement dc:rights

• Baylor University works are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. Contact libraryquestions@baylor.edu for inquiries about permission.

Language dc:language.iso

en

Handle dc:identifier.uri

https://hdl.handle.net/2104/10487

OAI identifier oai:identifier

oai:baylor-ir.tdl.org:2104/10487