Publikationsserver der RWTH Aachen University
Numerische Untersuchung abgelöster Düsenströmungen
Abstract
dc:descriptionThe numerical investigation of nozzle flows is introduced as an alternative and addition to the experiment. In the beginning, an overview of today's understanding of separated nozzle flow is given. Before the problem is attacked numerically, the computational method used is described in detail and validated against several test cases. Next, the essential flow characteristics are shown in separated cold gas nozzle flow simulations. Here the gas properties can be described by the perfect gas relation. Also, experimental data and observations are available in abundance. Flow separation with and without reattachment and possible hysteresis effects are discussed. To study nozzle flows with hot combustion gases the gas model is improved. For the simulation of the Vulcain-engine chemical equilibrium is assumed. Vulcain shows flow separation with and without reattachment. The appearance of the cap-shock pattern or the Mach disk is governed by the gas mixture. For the simulation of Vulcain 2 the finite reaction rates of the combustion gases are considered. An attempt is made to predict thermal loads. The work ends with a discussion of the results.
Degree
thesis:*- Grantor dc:publisher
- Publikationsserver der RWTH Aachen University
- Year dc:date
- 2002
Author and committee
dc:creator, dc:contributor.*- Author dc:creator
-
- Groß, Andreas
- Contributors dc:contributor
-
- Koschel, Wolfgang
Subjects
dc:subject × 4Rights
dc:rights- Statement dc:rights
-
- info:eu-repo/semantics/openAccess
- Language dc:language
- ger
Identifiers
dc:identifier.*- OAI identifier oai:identifier
- oai:publications.rwth-aachen.de:57166