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The metal biocompatible materials and their use
Klusák, Ondřej ; Čelko, Ladislav (referee) ; Klakurková, Lenka (advisor)
The aim of proposed bachelor thesis is in a form of a literature search to create an overview of materials for medical application. The thesis is focused in detail primarily on selected groups of (inter)metallic biocompatible materials like nitinol, titanium (Ti), titanium alloys and cobalt based alloys. The explanation of term Biocompatibility and separation of the materials according to their biological tolerance is included in thesis introduction and next several chapters. This thesis provide various information both about historical and current development, the manufacture processes, chemical compositions, mechanical properties and the most common applications of these materials. One of the major aims of this work is to outline an expected future development of biocompatible materials and to introduce new trends. This thesis is written and can be dedicated not only for specialists but also for students interested in the topic of metallic biocompatible materials.
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The design of an induser in front of the impeller
Klusák, Ondřej ; Stejskal, Jiří (referee) ; Haluza, Miloslav (advisor)
The main objective of the thesis is to verify the hydraulic inducer designs and to determine its effect on the cavitation characteristics of the pump. To increase the suction capability and cavitation resistance, the inducer is placed in front of the impeller centrifugal pump. Its role is to protect the impeller against the cavitation. The literary part of the thesis analyzes the issue of cavitation, its origin, development and termination of the cavitation bubble with so-called implosion. Special attention is devoted to describtion of cavitation effect occuring at the hydrodynamic pumps. In the theoretical part, the author is then dealing with the general principles and so far used approaches to the inducer design. The practical part of the thesis describes the process and the derivation of own designs of cylindrical inducer. The aim of the used, unconventional approaches to the inducer design is to achieve a constant pressure field and specific energy of the inducer design output. Partial variants of inducer blades design geometry are tested by the controlled calculation with CFD.
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The design of an induser in front of the impeller
Klusák, Ondřej ; Stejskal, Jiří (referee) ; Haluza, Miloslav (advisor)
The main objective of the thesis is to verify the hydraulic inducer designs and to determine its effect on the cavitation characteristics of the pump. To increase the suction capability and cavitation resistance, the inducer is placed in front of the impeller centrifugal pump. Its role is to protect the impeller against the cavitation. The literary part of the thesis analyzes the issue of cavitation, its origin, development and termination of the cavitation bubble with so-called implosion. Special attention is devoted to describtion of cavitation effect occuring at the hydrodynamic pumps. In the theoretical part, the author is then dealing with the general principles and so far used approaches to the inducer design. The practical part of the thesis describes the process and the derivation of own designs of cylindrical inducer. The aim of the used, unconventional approaches to the inducer design is to achieve a constant pressure field and specific energy of the inducer design output. Partial variants of inducer blades design geometry are tested by the controlled calculation with CFD.
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|
|
The metal biocompatible materials and their use
Klusák, Ondřej ; Čelko, Ladislav (referee) ; Klakurková, Lenka (advisor)
The aim of proposed bachelor thesis is in a form of a literature search to create an overview of materials for medical application. The thesis is focused in detail primarily on selected groups of (inter)metallic biocompatible materials like nitinol, titanium (Ti), titanium alloys and cobalt based alloys. The explanation of term Biocompatibility and separation of the materials according to their biological tolerance is included in thesis introduction and next several chapters. This thesis provide various information both about historical and current development, the manufacture processes, chemical compositions, mechanical properties and the most common applications of these materials. One of the major aims of this work is to outline an expected future development of biocompatible materials and to introduce new trends. This thesis is written and can be dedicated not only for specialists but also for students interested in the topic of metallic biocompatible materials.
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