Thesis (Ph. D.)--University of Wisconsin--Madison, 1976. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Bibliography: leaves 271-278.

Thesis (M.S.)--University of Wisconsin--Madison. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 89-90).

No description available.

No description available.

The need for a catalytic converter within the exhaust system of automotive engines in order to meet emission regulations and the associated costs of its design and testing have meant that a computational model is highly desirable. A number of models have been developed with increasing completeness and versatility. Each model has used approximations and simplifications to reduce the computation time and to enable their use as a design tool to be viable. The present project utilises a commercial Computational Fluid Dynamics (CFD) code STAR-CD to model the initial stages of a catalytic converter in a motor vehicle starting from cold. The ultimate aim is to be able to use the model to improve the efficiency of a catalytic converter by reducing the time taken for light-off. A detailed single channel study is utilised to provide the geometric versatility of the model and to assess the feasibility of using a thin film approach (with heat transfer coefficient as a function of distance down the monolith) which can be utilised in a full equivalent continuum model. The results of this unique study show that the heat transfer from the gas to the monolith can be reliably quantified for a given geometry under common input variables. For typical ceramic substrate monoliths the heat transfer towards the rear of the channels was given by a Nusselt number of approximately 3.5 with elevated heat transfer in the developing region near the channel entrance. Sinusoidal metallic substrate monoliths had a fully developed heat transfer of 2.4.

Thesis (Ph. D.)--West Virginia University, 2004. / Title from document title page. Document formatted into pages; contains v, 32 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 29-30).

Thesis (M.S.)--University of Wisconsin--Madison, 1966. / eContent provider-neutral record in process. Description based on print version record. Bibliography: l. 92-98.

Thesis (M.S.)--University of Wisconsin--Madison, 1967. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Thesis (M.S.)--West Virginia University, 2010. / Title from document title page. Document formatted into pages; contains ix, 74 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 53-55).

Thesis (M.S.)--Tennessee Technological University, 2008. / Title from title page screen (viewed on May 12, 2010). Includes bibliographical references.