Accession Number : ADA317381

Title :   Dynamic Behavior of a Meniscus Subjected to a Transient Acceleration Field.

Descriptive Note : Final rept. 1 Dec 93-1 Dec 94,

Corporate Author : WRIGHT LAB WRIGHT-PATTERSON AFB OH

Personal Author(s) : Yerkes, Kirk L.

PDF Url : ADA317381

Report Date : DEC 1994

Pagination or Media Count : 220

Abstract : The dynamic response of an unheated meniscus within a capillary tube subjected to single and multiple cycle transient acceleration induced forces was studied experimentally and analytically. A capillary tube was partially filled with either water or ethyl alcohol and mounted on a centrifuge for visual observation of the dynamic response of the meniscus subject to an acceleration transient. A one-dimensional mathematical model was formulated to predict the dynamic response of the meniscus and compared with experimental results. For the case in which the meniscus was heated, thermocapillary stresses in the near contact line region were accounted for in the model by a change in contact angle.

Descriptors :   *DYNAMIC LOADS, *CAPILLARY TUBES, MATHEMATICAL MODELS, DYNAMIC RESPONSE, THIN FILMS, VISUAL PERCEPTION.

Subject Categories : Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE