Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 5 of 5 for “"Ludwieg Tube"”.
-
Quasi-One-Dimensional Modeling of an Adiabatic-Compression Preheated Ludwieg Tube
… the generating flow. An electrically preheated Ludwieg tube provides the initial means of heating while the piston-compression is used to further increase the pressure and temperature. Preliminary constraints on the design space for optimal operation are presented through the method of …
-
The Design and Implementation of a Supersonic Indraft Tube Wind Tunnel for the Demonstration of Supersonic Flows
… be prohibitive for many university settings. The Ludwieg tube provides a simple, elegant method for producing testable supersonic flows at price points significantly lower than the aforementioned test-system architectures. Unfortunately, the spacial footprint and moderate cost required for driver …
-
Surface Curvature and Roughness Effects on Görtler Vortex Development in Hypersonic Flow
… University of Texas at San Antonio (UTSA) Mach 7 Ludwieg tube wind tunnel facility. The goal of these studies was to examine how variations in surface roughness and curvature affect the downstream development and transition characteristics of the hypersonic boundary layer formed over concave …
-
DEVELOPMENT OF KRYPTON PLANAR LASER INDUCED FLUORESCENCE METHODS FOR THE MEASUREMENT OF HYPERSONIC FLOW CONDITIONS
… AEDC Tunnel 9 hypersonic test facility and UMD Ludwieg Tube. In order to design and test the system, the AEDC Mach 3 Calibration wind tunnel was utilized and Kr-PLIF measurements were taken about a 0.50” spherical model and 2” BOLT model. A wide variety of equipment and methods were assessed for …
-
A Unified Theory Characterising the Spontaneous Condensation Tendency of Working Fluids in Organic Rankine Cycle Expansion: Key Difference from Steam and its Implications
… density. In Chapter 3, the author discusses the Ludwieg tube-based experimental methods for pressure measurements of expansion flow through an actual ORC transonic vane geometry. The experimental results serve the purpose of code validation of the two-phase numerical scheme developed in this work …