Accession Number : AD0468307


Title :   EXPERIMENTS ON THE THERMAL PERFORMANCE OF RIBBON PARACHUTES


Descriptive Note : Final rept., Jul 1963-Sep 1964


Corporate Author : MINNESOTA UNIV MINNEAPOLIS HEAT TRANSFER LAB


Personal Author(s) : Scott, C J ; Eckert, E R


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/468307.pdf


Report Date : May 1965


Pagination or Media Count : 78


Abstract : Experimental heat transfer studies were conducted on full scale ribbons of flat circular type parachutes having a geometric porosity of 20.5 percent. A pressurized subsonic wind tunnel served as the flow facility. The average approach flow velocity was 134 feet per second. The measurements were made in the Reynolds number range of one million to ten million, where the Reynolds number is based on the ribbon width of 2.1 inches and on the velocity and temperature of the flow in the slots between the ribbons. The pressure ratio applied to the ribbon was varied from 1.4 to 26.3. Using a transient energy balance, local and average heat transfer data were obtained and compared with available analyses.


Descriptors :   *RIBBON PARACHUTES , THERMAL PROPERTIES , HEAT TRANSFER , RECOVERY , TEST EQUIPMENT , PRESSURE , AEROSPACE CRAFT , SUBSONIC FLOW , AERODYNAMIC HEATING , WIND TUNNELS , DECELERATION , STAGNATION POINT


Subject Categories : Gliders and Parachutes


Distribution Statement : APPROVED FOR PUBLIC RELEASE