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Propulsion Mechanism of Catalytic Microjet Engines

Fomin, Vladimir M. ; Hippler, Markus ; Magdanz, Veronika ; Soler, Lluis ; Sanchez, Samuel ; Schmidt, Oliver G.

IEEE transactions on robotics, 2014-02, Vol.30 (1), p.40-48 [Periódico revisado por pares]

United States: IEEE

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Título:
Propulsion Mechanism of Catalytic Microjet Engines
Autor: Fomin, Vladimir M. ; Hippler, Markus ; Magdanz, Veronika ; Soler, Lluis ; Sanchez, Samuel ; Schmidt, Oliver G.
Assuntos: Asymmetry ; Bubbles ; Catalysts ; Catalytic microjets ; Electric motors ; Electron tubes ; Engines ; Enginyeria mecànica ; Force ; Iron ; Mathematical models ; Microjets ; micromotors ; modeling ; Momentum transfer ; Motors ; Motors (Mecànica) ; Nanomachines ; Nanomotors ; Nanorobots ; Nanostructure ; Nanotechnology ; Nanotecnologia ; physics ; Propulsion ; Robotics ; self-assembled microtubes ; Shape ; Surface tension ; system performance ; Tubes ; Àrees temàtiques de la UPC
É parte de: IEEE transactions on robotics, 2014-02, Vol.30 (1), p.40-48
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: We describe the propulsion mechanism of the catalytic microjet engines that are fabricated using rolled-up nanotech. Microjets have recently shown numerous potential applications in nanorobotics but currently there is a lack of an accurate theoretical model that describes the origin of the motion as well as the mechanism of self-propulsion. The geometric asymmetry of a tubular microjet leads to the development of a capillary force, which tends to propel a bubble toward the larger opening of the tube. Because of this motion in an asymmetric tube, there emerges a momentum transfer to the fluid. In order to compensate this momentum transfer, a jet force acting on the tube occurs. This force, which is counterbalanced by the linear drag force, enables tube velocities of the order of 100 μm/s. This mechanism provides a fundamental explanation for the development of driving forces that are acting on bubbles in tubular microjets.
Editor: United States: IEEE
Idioma: Inglês

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Propulsion Mechanism of Catalytic Microjet Engines

Fomin, Vladimir M. ; Hippler, Markus ; Magdanz, Veronika ; Soler, Lluis ; Sanchez, Samuel ; Schmidt, Oliver G.

United States: IEEE

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