Sökning: "Jörgen Held"
Visar resultat 1 - 5 av 7 avhandlingar innehållade orden Jörgen Held.
1. Large Eddy Simulations of Separated Compressible Flows around Wing Sections
Sammanfattning : This thesis concerns numerical calculations of compressible separated flows, with and without shocks, around wing sections using Large Eddy Simulations (LES). The considered geometries are the NACA 0012 wing section and the ONERA AT15A wing section. LÄS MER
2. Energy system evaluation of thermo-chemical biofuel production : Process development by integration of power cycles and sustainable electricity
Sammanfattning : Fossil fuels dominate the world energy supply today and the transport sector is no exception. Renewable alternatives must therefore be introduced to replace fossil fuels and their emissions, without sacrificing our standard of living. LÄS MER
3. Eccentric correction in central visual field loss
Sammanfattning : It is not often that one is instantaneously able to apply the results of basic research. This work is an example of such an exception. A widely held conviction has been that human peripheral vision could not be improved through optical correction. It w. LÄS MER
4. Quality aspects in direct shear testing of rock joints
Sammanfattning : The stability of rock masses is influenced by the occurrence of rock joints. Therefore, the shear strength of rock joints must be considered in dimensioning of underground constructions. LÄS MER
5. Chordal and Complete Structures in Combinatorics and Commutative Algebra
Sammanfattning : This thesis is divided into two parts. The first part is concerned with the commutative algebra of certain combinatorial structures arising from uniform hypergraphs. The main focus lies on two particular classes of hypergraphs called chordal hypergraphs and complete hypergraphs, respectively. LÄS MER