搜索结果: 1-5 共查到“空间物理学 Dynamo”相关记录5条 . 查询时间(0.226 秒)
A theory of the Earth's magnetic field and of sunspots,based on a self-excited dynamo incorporating the Hall effect
Earth's magnetic field self-excited dynamo Hall effect
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2009/11/12
A new viewpoint on the generation and maintenance of the Earth's magnetic field is put forward, which integrates self-exciting dynamo theory with the possibility of energy coupling along orthogonal ax...
On the mean-field theory of the Karlsruhe Dynamo Experiment
Dynamo geodynamo dynamo experiment mean-field dynamo theory a-effect
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2009/11/12
In the Forschungszentrum Karlsruhe an experiment has been constructed which demonstrates a homogeneous dynamo as is expected to exist in the Earth's interior. This experiment is discussed within the f...
The Karlsruhe Dynamo Experiment
Karlsruhe Dynamo Experiment homogeneous dynamos
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2009/11/12
It has been shown theoretically in the past that homogeneous dynamos may occur in electrically conducting fluids for various vortical velocity fields. Roberts (1972) investigated spatially periodic, i...
Direct numerical simulations of helical dynamo action:MHD and beyond
Direct numerical simulations helical dynamo action MHD and beyond
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2009/11/11
Magnetohydrodynamic dynamo action is often invoked to explain the existence of magnetic fields in several astronomical objects. In this work, we present direct numerical simulations of MHD helical dyn...
Finite amplitudes helical waves on the surface of the conducting fluid earth core as an example of the self-exciting homopolar heterogeneous dynamo
Finite amplitudes helical waves conducting fluid earth self-exciting homopolar heterogeneous dynamo
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2009/11/9
Helical waves of the finite amplitude on a surface of the fluid conducting Earth core are examined for generation of the magnetic field. Estimates are made for the differentially rotating cylindrical ...