glossary:lundquist-number
CONCEPT dossier
Lundquist Number
Glossary term: Lundquist Number
CONCEPT Fusion Physics
01 Executive_Summary
A dimensionless number in magnetohydrodynamics representing the ratio of magnetic diffusion time to Alfvén transit time. High Lundquist numbers indicate that magnetic fields are effectively frozen into the plasma, relevant to spheromak and FRC sustainment.
02 Definition
A dimensionless number in magnetohydrodynamics representing the ratio of magnetic diffusion time to Alfvén transit time. High Lundquist numbers indicate that magnetic fields are effectively frozen into the plasma, relevant to spheromak and FRC sustainment.
03 Deep_Dive_Intelligence
Overview
A dimensionless number in magnetohydrodynamics representing the ratio of magnetic diffusion time to Alfvén transit time. High Lundquist numbers indicate that magnetic fields are effectively frozen into the plasma, relevant to spheromak and FRC sustainment.
Role: Glossary term: Lundquist Number
Entity Type: Concept — Lundquist Number is a technical concept or theoretical framework.
Technical Definition
A dimensionless number in magnetohydrodynamics representing the ratio of magnetic diffusion time to Alfvén transit time. High Lundquist numbers indicate that magnetic fields are effectively frozen into the plasma, relevant to spheromak and FRC sustainment.
Related Concepts: Spheromak, MHD, Magnetic Reynolds Number
05b Related_Topics (1)
07 Key_Findings
- ▸ Role: Glossary term: Lundquist Number
- ▸ Entity Type: Concept — Lundquist Number is a technical concept or theoretical framework.
- ▸ Related Concepts: Spheromak, MHD, Magnetic Reynolds Number
10 FAQ
What is Lundquist Number? ▾
A dimensionless number in magnetohydrodynamics representing the ratio of magnetic diffusion time to Alfvén transit time. High Lundquist numbers indicate that magnetic fields are effectively frozen into the plasma, relevant to spheromak and FRC sustainment.
What role does Lundquist Number play in the research network? ▾
Lundquist Number is classified under the "Fusion Physics" category, serving as Glossary term: Lundquist Number. A dimensionless number in magnetohydrodynamics representing the ratio of magnetic diffusion time to Alfvén transit time. High Lundquist numbers indicate that magnetic fields are effectively frozen...
What evidence supports the Lundquist Number assessment? ▾
The intelligence assessment for Lundquist Number is supported by 3 primary sources, 1 PDF document, and 1 citation. Key sources include "Lundquist number", "Lundquist_number — PlasmaPy documentation", and "Beyond Ideal MHD - Viscosity and dimensionless numbers". These documents provide the evidentiary basis for the analysis.
What is the technical definition of Lundquist Number? ▾
A dimensionless number in magnetohydrodynamics representing the ratio of magnetic diffusion time to Alfvén transit time. High Lundquist numbers indicate that magnetic fields are effectively frozen into the plasma, relevant to spheromak and FRC sustainment. Related Concepts: Spheromak, MHD, Magnetic Reynolds Number
What is the physics behind Lundquist Number? ▾
A dimensionless number in magnetohydrodynamics representing the ratio of magnetic diffusion time to Alfvén transit time. High Lundquist numbers indicate that magnetic fields are effectively frozen into the plasma, relevant to spheromak and FRC sustainment. Role: Glossary term: Lundquist Number Entity Type: Concept — Lundquist Number is a...
What primary source PDFs are available for Lundquist Number? ▾
1 PDF document is available: "Resistive and Viscous Magnetohydrodynamics: Dimensionless Numbers, Heating, and Key Properties". This document covers the formulation of viscous and resistive magnetohydrodynamics (MHD) in dimensionless form. It introduces key dimensionless parameters such as the Reynolds number, magnetic...
What external sources document Lundquist Number? ▾
Lundquist Number is documented by 3 external sources, including 1 Encyclopedia Article, 1 Software Documentation, and 1 University Lecture Notes. Notable references include "Lundquist number", "Lundquist_number — PlasmaPy documentation", and "Beyond Ideal MHD - Viscosity and dimensionless numbers".
What is the current status of Lundquist Number? ▾
A dimensionless number in magnetohydrodynamics representing the ratio of magnetic diffusion time to Alfvén transit time. High Lundquist numbers indicate that magnetic fields are effectively frozen into the plasma, relevant to spheromak and FRC...
How does Lundquist Number relate to compact fusion research? ▾
Overview A dimensionless number in magnetohydrodynamics representing the ratio of magnetic diffusion time to Alfvén transit time. High Lundquist numbers indicate that magnetic fields are effectively frozen into the plasma, relevant to spheromak and FRC sustainment. Role: Glossary term: Lundquist...
What documents should I read to learn more about Lundquist Number? ▾
To learn more about Lundquist Number, review the 3 primary sources, 1 PDF document, and related research finding linked in the source documents section of this dossier.
External_References 5 REFS
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Glossary_Sources
External_Primary_Sources 2
Verified_Primary_Sources 3 SOURCES
secondary wikipedia.org Encyclopedia Article
Lundquist number
Verifies: Lundquist number compares timescale of Alfvén wave crossing to timescale of resistive diffusion; Special case of magnetic Reynolds number when Alfvén velocity is typical velocity; High Lundquist numbers indicate highly conducting plasmas where fields are frozen into plasma
External Link ↗
primary docs.plasmapy.org Software Documentation
Lundquist_number — PlasmaPy documentation
Verifies: Lundquist number computes ratio of Alfvén wave crossing timescale to magnetic diffusion timescale
External Link ↗
primary astro.gsu.edu University Lecture Notes
Beyond Ideal MHD - Viscosity and dimensionless numbers
Verifies: Lundquist number S = L₀V_A/D_η = resistive diffusion timescale / Alfvén wave crossing time; Magnetic Reynolds number is special case when V₀ = V_A
External Link ↗
ID: glossary:lundquist-number
Type: concept
Region: glossary
Last updated: Research database snapshot
Type: concept
Region: glossary
Last updated: Research database snapshot