CAPILLARY FLOW EXPERIMENTS (CFE) FOR INTERIOR CORNER FLOWS (ICF) WERE CONDUCTED ABOARD THE ISS AND RELY SOLELY ON VIDEO FOR HIGH-QUALITY QUANTITATIVE DATA. WE PROPOSE TO DIGITALLY MEASURE THE STILL VIDEO IMAGES OF THE TIME-DEPENDENT INTERFACE HEIGHT. SINCE CONTAINER GEOMETRY IS KNOWN THE MENISCUS HEIGHTS CAN BE USED TO DETERMINE VOLUMETRIC DRAIN RATES. THIS DATA WOULD THEN SERVE AS BOTH A BENCHMARK FOR CURRENT THEORY ON DRAIN RATES AND A GUIDE FOR EXTENDING CAPILLARY FLOW MODELS TO A DIVERSE SET OF GEOMETRIES AND FLOW CONDITIONS. WE ALSO PROPOSE TO UTILIZE AND EXTEND A NUMERICAL TOOL TO SIMULATE 3D TRANSIENT CORNER FLOWS WITH AND WITHOUT TOPOLOGICAL CHANGE. TO PURSUE ANY DISCREPANCY BETWEEN DATA AND NUMERICS SUPPORTIVE GROUND-BASED EXPERIMENTS AT MICRO-SCALES AND LOW-GRAVITY EXPERIMENTS CONDUCTED IN THE DRYDEN DROP TOWER AT PORTLAND STATE UNIVERSITY ARE PROPOSED.UNDERSTANDING THE DYNAMICS OF CAPILLARY FLOWS AND RESPONSES OF DRAIN FLOWS TO VARIOUS GEOMETRIES OFFERS DESIGN ADVANTAGES FOR SPACECRAFT WASTE-MANAGEMENT SYSTEMS FUEL CONTROL HYDRATION CONTAINMENT AND CRYOGENIC FLOWS. CAPILLARY FLOWS AND DRAIN PROBLEMS ARE RELEVANT RELEVANT TO A BROAD RANGE OF TWO-PHASE FLOW TECHNOLOGIES IN LOW GRAVITY INCLUDING 3D VANE NETWORKS FOR POSITIONING OF FUELS AN IMPORTANT PROBLEM CONCERNING PROPELLANT LIQUID MANAGEMENT ABOARD SPACECRAFT.