Talk:1851: Magnetohydrodynamics - Revision history

172.69.195.183: ...forgot to sign, in my excitement. (I get easily excited, clearly.)

2024-07-28T20:58:58Z

...forgot to sign, in my excitement. (I get easily excited, clearly.)

172.69.195.5 at 20:53, 28 July 2024

2024-07-28T20:53:19Z

108.162.216.69 at 03:05, 28 July 2024

2024-07-28T03:05:45Z

172.71.94.181 at 20:22, 6 July 2022

2022-07-06T20:22:53Z

172.68.132.195 at 17:54, 11 April 2021

2021-04-11T17:54:29Z

NiceGuy1 at 04:25, 27 June 2017

2017-06-27T04:25:49Z

108.162.215.160 at 00:17, 21 June 2017

2017-06-21T00:17:06Z

These Are Not The Comments You Are Looking For at 01:48, 18 June 2017

2017-06-18T01:48:59Z

Dgbrt: Please sign your posts with ~~~~ Are you a joker?

2017-06-17T23:16:11Z

Please sign your posts with ~~~~ Are you a joker?

Xoanon at 20:21, 17 June 2017

2017-06-17T20:21:58Z

← Older revision		Revision as of 20:58, 28 July 2024
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	The explanation of the title-text is a little inaccurate. Randall's not simply comparing magnetohydrodynamics to Maxwell's equations and the Navier-Stokes equations because of their difficulty. Maxwell's equations describe the behavior of electric and magnetic fields, and the Navier-Stokes equations describe the behavior of viscous fluids. They're both fundamental in modeling and studying magnetohydrodynamics. [[Special:Contributions/108.162.216.69\|108.162.216.69]] 03:05, 28 July 2024 (UTC)		The explanation of the title-text is a little inaccurate. Randall's not simply comparing magnetohydrodynamics to Maxwell's equations and the Navier-Stokes equations because of their difficulty. Maxwell's equations describe the behavior of electric and magnetic fields, and the Navier-Stokes equations describe the behavior of viscous fluids. They're both fundamental in modeling and studying magnetohydrodynamics. [[Special:Contributions/108.162.216.69\|108.162.216.69]] 03:05, 28 July 2024 (UTC)
−	:I see it as being linked by motive, and aspects of that motive projected upon the magnetohydrodynaimical situation. So made my own changes accordingly.	+	:I see it as being linked by motive, and aspects of that motive projected upon the magnetohydrodynaimical situation. So made my own changes accordingly. [[Special:Contributions/172.69.195.183\|172.69.195.183]] 20:58, 28 July 2024 (UTC)

← Older revision		Revision as of 20:53, 28 July 2024
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	The explanation of the title-text is a little inaccurate. Randall's not simply comparing magnetohydrodynamics to Maxwell's equations and the Navier-Stokes equations because of their difficulty. Maxwell's equations describe the behavior of electric and magnetic fields, and the Navier-Stokes equations describe the behavior of viscous fluids. They're both fundamental in modeling and studying magnetohydrodynamics. [[Special:Contributions/108.162.216.69\|108.162.216.69]] 03:05, 28 July 2024 (UTC)		The explanation of the title-text is a little inaccurate. Randall's not simply comparing magnetohydrodynamics to Maxwell's equations and the Navier-Stokes equations because of their difficulty. Maxwell's equations describe the behavior of electric and magnetic fields, and the Navier-Stokes equations describe the behavior of viscous fluids. They're both fundamental in modeling and studying magnetohydrodynamics. [[Special:Contributions/108.162.216.69\|108.162.216.69]] 03:05, 28 July 2024 (UTC)
		+	:I see it as being linked by motive, and aspects of that motive projected upon the magnetohydrodynaimical situation. So made my own changes accordingly.

← Older revision		Revision as of 03:05, 28 July 2024
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	Or it could just be greased lightning.[[Special:Contributions/172.68.132.195\|172.68.132.195]] 17:54, 11 April 2021 (UTC)		Or it could just be greased lightning.[[Special:Contributions/172.68.132.195\|172.68.132.195]] 17:54, 11 April 2021 (UTC)
		+
		+	The explanation of the title-text is a little inaccurate. Randall's not simply comparing magnetohydrodynamics to Maxwell's equations and the Navier-Stokes equations because of their difficulty. Maxwell's equations describe the behavior of electric and magnetic fields, and the Navier-Stokes equations describe the behavior of viscous fluids. They're both fundamental in modeling and studying magnetohydrodynamics. [[Special:Contributions/108.162.216.69\|108.162.216.69]] 03:05, 28 July 2024 (UTC)

← Older revision		Revision as of 20:22, 6 July 2022
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	Randall is downplaying it. I used to work with magnetohydrodynamics when building systems for studying the solar wind. It's really hard because you've got masses of local and non-local (at sane timescales) interactions and the non-linearities don't cancel out nicely. Doing the same within the sun, especially at the boundary between the radiation zone and the convective zone, would require relativistic quantum magnetohydrodynamics, and that's got like every sort of hard in modern physics. I think I'll stick with simple things like trying to build a true AI. [[Special:Contributions/141.101.98.226\|141.101.98.226]] 17:10, 16 June 2017 (UTC)		Randall is downplaying it. I used to work with magnetohydrodynamics when building systems for studying the solar wind. It's really hard because you've got masses of local and non-local (at sane timescales) interactions and the non-linearities don't cancel out nicely. Doing the same within the sun, especially at the boundary between the radiation zone and the convective zone, would require relativistic quantum magnetohydrodynamics, and that's got like every sort of hard in modern physics. I think I'll stick with simple things like trying to build a true AI. [[Special:Contributions/141.101.98.226\|141.101.98.226]] 17:10, 16 June 2017 (UTC)
		+	: The real question is what's harder: solving an MHD problem or building an AI to solve it for you? [[Special:Contributions/172.71.94.181\|172.71.94.181]] 20:22, 6 July 2022 (UTC)

	There is a typo in the caption: "magnetohydrodyanmics" :-) {{unsigned ip\|188.114.102.202}}		There is a typo in the caption: "magnetohydrodyanmics" :-) {{unsigned ip\|188.114.102.202}}

← Older revision		Revision as of 17:54, 11 April 2021
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	{{w\|Fluid_dynamics\|Hydrodynamics}} is the study of fluids, not just liquids, as it includes solids (though usually plain hydrodynamics or radiation-hydrodynamics is used in explosion simulations, e.g. dynamite or something) as well as liquids and gases (again rad-hydro is used here lots in stellar explosions) and things that are sort of in-between or not really SL or G. Hydrodynamics is regularly treated numerically using simulations, you can't solve it analytically (unless someone claims that prize) so you integrate it {{w\|https://Numerical_integration\|bit}} by tiny bit, loads of times. MHD adds a layer of difficulty as you might expect, it's used to describe interstellar gas where the magnetic bits gets important (e.g. stellar winds, the top few layers of the sun [https://arxiv.org/pdf/1112.5925.pdf (Solar Vortex Tubes!)]), MHD is widely used in the {{w\|Magnetic_confinement_fusion\|Magnetic Confinement Fusion}} community to simulate plasma flow/turbulence/horror in {{w\|Tokamak\|Tokamak}} or {{w\|Wendelstein_7-X\|Stellerator}} (and weirder) devices, it's pretty difficult to get right, hence very little fusion yet in these devices. Though it is worth noting that it is actually a simplification of particle kinetic behaviour and that it can't describe a lot of really fast time dynamics, or some of the more odd {{w\|Plasma_stability\|instabilities}}, so some poor sods (me sadly) have to use the {{w\|Particle-in-cell\|particle}} kinetic codes to simulate their plasmas.[[unsigned ip\|127.0.0.1\|20:39, 17 June 2017 (UTC)]]{{unsigned\|Xoanon}}		{{w\|Fluid_dynamics\|Hydrodynamics}} is the study of fluids, not just liquids, as it includes solids (though usually plain hydrodynamics or radiation-hydrodynamics is used in explosion simulations, e.g. dynamite or something) as well as liquids and gases (again rad-hydro is used here lots in stellar explosions) and things that are sort of in-between or not really SL or G. Hydrodynamics is regularly treated numerically using simulations, you can't solve it analytically (unless someone claims that prize) so you integrate it {{w\|https://Numerical_integration\|bit}} by tiny bit, loads of times. MHD adds a layer of difficulty as you might expect, it's used to describe interstellar gas where the magnetic bits gets important (e.g. stellar winds, the top few layers of the sun [https://arxiv.org/pdf/1112.5925.pdf (Solar Vortex Tubes!)]), MHD is widely used in the {{w\|Magnetic_confinement_fusion\|Magnetic Confinement Fusion}} community to simulate plasma flow/turbulence/horror in {{w\|Tokamak\|Tokamak}} or {{w\|Wendelstein_7-X\|Stellerator}} (and weirder) devices, it's pretty difficult to get right, hence very little fusion yet in these devices. Though it is worth noting that it is actually a simplification of particle kinetic behaviour and that it can't describe a lot of really fast time dynamics, or some of the more odd {{w\|Plasma_stability\|instabilities}}, so some poor sods (me sadly) have to use the {{w\|Particle-in-cell\|particle}} kinetic codes to simulate their plasmas.[[unsigned ip\|127.0.0.1\|20:39, 17 June 2017 (UTC)]]{{unsigned\|Xoanon}}
	:To make things more unpleasant, several of the assumptions MHD uses don't apply to most fusion plasmas (particularly the collisionality).[[Special:Contributions/108.162.215.160\|108.162.215.160]]		:To make things more unpleasant, several of the assumptions MHD uses don't apply to most fusion plasmas (particularly the collisionality).[[Special:Contributions/108.162.215.160\|108.162.215.160]]
		+
		+	Or it could just be greased lightning.[[Special:Contributions/172.68.132.195\|172.68.132.195]] 17:54, 11 April 2021 (UTC)

@@ Line 12: / Line 12: @@
 There is a typo in the caption: "magnetohydrodyanmics" :-) {{unsigned ip|188.114.102.202}}
 :That's because we have a trivia section.--[[User:Dgbrt|Dgbrt]] ([[User talk:Dgbrt|talk]]) 22:10, 16 June 2017 (UTC)
 "Magnetohydrodynamics". I mean, the basic concept of magnets influencing water doesn't sound so bad, but the word itself sounds like a mad scientist having a stroke. [[Special:Contributions/162.158.62.135|162.158.62.135]] 19:23, 16 June 2017 (UTC)

← Older revision		Revision as of 00:17, 21 June 2017
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	{{w\|Fluid_dynamics\|Hydrodynamics}} is the study of fluids, not just liquids, as it includes solids (though usually plain hydrodynamics or radiation-hydrodynamics is used in explosion simulations, e.g. dynamite or something) as well as liquids and gases (again rad-hydro is used here lots in stellar explosions) and things that are sort of in-between or not really SL or G. Hydrodynamics is regularly treated numerically using simulations, you can't solve it analytically (unless someone claims that prize) so you integrate it {{w\|https://Numerical_integration\|bit}} by tiny bit, loads of times. MHD adds a layer of difficulty as you might expect, it's used to describe interstellar gas where the magnetic bits gets important (e.g. stellar winds, the top few layers of the sun [https://arxiv.org/pdf/1112.5925.pdf (Solar Vortex Tubes!)]), MHD is widely used in the {{w\|Magnetic_confinement_fusion\|Magnetic Confinement Fusion}} community to simulate plasma flow/turbulence/horror in {{w\|Tokamak\|Tokamak}} or {{w\|Wendelstein_7-X\|Stellerator}} (and weirder) devices, it's pretty difficult to get right, hence very little fusion yet in these devices. Though it is worth noting that it is actually a simplification of particle kinetic behaviour and that it can't describe a lot of really fast time dynamics, or some of the more odd {{w\|Plasma_stability\|instabilities}}, so some poor sods (me sadly) have to use the {{w\|Particle-in-cell\|particle}} kinetic codes to simulate their plasmas.[[unsigned ip\|127.0.0.1\|20:39, 17 June 2017 (UTC)]]{{unsigned\|Xoanon}}		{{w\|Fluid_dynamics\|Hydrodynamics}} is the study of fluids, not just liquids, as it includes solids (though usually plain hydrodynamics or radiation-hydrodynamics is used in explosion simulations, e.g. dynamite or something) as well as liquids and gases (again rad-hydro is used here lots in stellar explosions) and things that are sort of in-between or not really SL or G. Hydrodynamics is regularly treated numerically using simulations, you can't solve it analytically (unless someone claims that prize) so you integrate it {{w\|https://Numerical_integration\|bit}} by tiny bit, loads of times. MHD adds a layer of difficulty as you might expect, it's used to describe interstellar gas where the magnetic bits gets important (e.g. stellar winds, the top few layers of the sun [https://arxiv.org/pdf/1112.5925.pdf (Solar Vortex Tubes!)]), MHD is widely used in the {{w\|Magnetic_confinement_fusion\|Magnetic Confinement Fusion}} community to simulate plasma flow/turbulence/horror in {{w\|Tokamak\|Tokamak}} or {{w\|Wendelstein_7-X\|Stellerator}} (and weirder) devices, it's pretty difficult to get right, hence very little fusion yet in these devices. Though it is worth noting that it is actually a simplification of particle kinetic behaviour and that it can't describe a lot of really fast time dynamics, or some of the more odd {{w\|Plasma_stability\|instabilities}}, so some poor sods (me sadly) have to use the {{w\|Particle-in-cell\|particle}} kinetic codes to simulate their plasmas.[[unsigned ip\|127.0.0.1\|20:39, 17 June 2017 (UTC)]]{{unsigned\|Xoanon}}
		+	:To make things more unpleasant, several of the assumptions MHD uses don't apply to most fusion plasmas (particularly the collisionality).[[Special:Contributions/108.162.215.160\|108.162.215.160]]

← Older revision		Revision as of 01:48, 18 June 2017
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	""...I replace it with "magic" "" magic has 5 letters, one more than the average anglospeaker is able to understand.[[Special:Contributions/162.158.18.10\|162.158.18.10]] 13:10, 16 June 2017 (UTC)		""...I replace it with "magic" "" magic has 5 letters, one more than the average anglospeaker is able to understand.[[Special:Contributions/162.158.18.10\|162.158.18.10]] 13:10, 16 June 2017 (UTC)
		+	:Not necessarily. "Troll" has five letters and it's meaning and present applicability are easily understood. [[User:These Are Not The Comments You Are Looking For\|These Are Not The Comments You Are Looking For]] ([[User talk:These Are Not The Comments You Are Looking For\|talk]]) 01:48, 18 June 2017 (UTC)

	Possible interpretation: It could also be that Cueball is simply unable to comprehend such a large word, and so compresses it into it's beginning and ending letters. Therefore, magnetohydrodynamic becomes mag...ic. {{unsigned ip\|172.68.78.82}}		Possible interpretation: It could also be that Cueball is simply unable to comprehend such a large word, and so compresses it into it's beginning and ending letters. Therefore, magnetohydrodynamic becomes mag...ic. {{unsigned ip\|172.68.78.82}}

← Older revision		Revision as of 23:16, 17 June 2017
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	I think he just calls it "magic" for the obvious reasons: the word is very long, and the concept denoted by it is really confusing. [[Special:Contributions/108.162.216.106\|108.162.216.106]] 02:05, 17 June 2017 (UTC)		I think he just calls it "magic" for the obvious reasons: the word is very long, and the concept denoted by it is really confusing. [[Special:Contributions/108.162.216.106\|108.162.216.106]] 02:05, 17 June 2017 (UTC)

−	{{w\|Fluid_dynamics\|Hydrodynamics}} is the study of fluids, not just liquids, as it includes solids (though usually plain hydrodynamics or radiation-hydrodynamics is used in explosion simulations, e.g. dynamite or something) as well as liquids and gases (again rad-hydro is used here lots in stellar explosions) and things that are sort of in-between or not really SL or G. Hydrodynamics is regularly treated numerically using simulations, you can't solve it analytically (unless someone claims that prize) so you integrate it {{w\|https://Numerical_integration\|bit}} by tiny bit, loads of times. MHD adds a layer of difficulty as you might expect, it's used to describe interstellar gas where the magnetic bits gets important (e.g. stellar winds, the top few layers of the sun [https://arxiv.org/pdf/1112.5925.pdf (Solar Vortex Tubes!)]), MHD is widely used in the {{w\|Magnetic_confinement_fusion\|Magnetic Confinement Fusion}} community to simulate plasma flow/turbulence/horror in {{w\|Tokamak\|Tokamak}} or {{w\|Wendelstein_7-X\|Stellerator}} (and weirder) devices, it's pretty difficult to get right, hence very little fusion yet in these devices. Though it is worth noting that it is actually a simplification of particle kinetic behaviour and that it can't describe a lot of really fast time dynamics, or some of the more odd {{w\|Plasma_stability\|instabilities}}, so some poor sods (me sadly) have to use the {{w\|Particle-in-cell\|particle}} kinetic codes to simulate their plasmas.[[unsigned ip\|127.0.0.1\|20:39, 17 June 2017 (UTC)]]	+	{{w\|Fluid_dynamics\|Hydrodynamics}} is the study of fluids, not just liquids, as it includes solids (though usually plain hydrodynamics or radiation-hydrodynamics is used in explosion simulations, e.g. dynamite or something) as well as liquids and gases (again rad-hydro is used here lots in stellar explosions) and things that are sort of in-between or not really SL or G. Hydrodynamics is regularly treated numerically using simulations, you can't solve it analytically (unless someone claims that prize) so you integrate it {{w\|https://Numerical_integration\|bit}} by tiny bit, loads of times. MHD adds a layer of difficulty as you might expect, it's used to describe interstellar gas where the magnetic bits gets important (e.g. stellar winds, the top few layers of the sun [https://arxiv.org/pdf/1112.5925.pdf (Solar Vortex Tubes!)]), MHD is widely used in the {{w\|Magnetic_confinement_fusion\|Magnetic Confinement Fusion}} community to simulate plasma flow/turbulence/horror in {{w\|Tokamak\|Tokamak}} or {{w\|Wendelstein_7-X\|Stellerator}} (and weirder) devices, it's pretty difficult to get right, hence very little fusion yet in these devices. Though it is worth noting that it is actually a simplification of particle kinetic behaviour and that it can't describe a lot of really fast time dynamics, or some of the more odd {{w\|Plasma_stability\|instabilities}}, so some poor sods (me sadly) have to use the {{w\|Particle-in-cell\|particle}} kinetic codes to simulate their plasmas.[[unsigned ip\|127.0.0.1\|20:39, 17 June 2017 (UTC)]]{{unsigned\|Xoanon}}

← Older revision		Revision as of 20:21, 17 June 2017
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	I think he just calls it "magic" for the obvious reasons: the word is very long, and the concept denoted by it is really confusing. [[Special:Contributions/108.162.216.106\|108.162.216.106]] 02:05, 17 June 2017 (UTC)		I think he just calls it "magic" for the obvious reasons: the word is very long, and the concept denoted by it is really confusing. [[Special:Contributions/108.162.216.106\|108.162.216.106]] 02:05, 17 June 2017 (UTC)
		+
	{{w\|Fluid_dynamics\|Hydrodynamics}} is the study of fluids, not just liquids, as it includes solids (though usually plain hydrodynamics or radiation-hydrodynamics is used in explosion simulations, e.g. dynamite or something) as well as liquids and gases (again rad-hydro is used here lots in stellar explosions) and things that are sort of in-between or not really SL or G. Hydrodynamics is regularly treated numerically using simulations, you can't solve it analytically (unless someone claims that prize) so you integrate it {{w\|https://Numerical_integration\|bit}} by tiny bit, loads of times. MHD adds a layer of difficulty as you might expect, it's used to describe interstellar gas where the magnetic bits gets important (e.g. stellar winds, the top few layers of the sun [https://arxiv.org/pdf/1112.5925.pdf (Solar Vortex Tubes!)]), MHD is widely used in the {{w\|Magnetic_confinement_fusion\|Magnetic Confinement Fusion}} community to simulate plasma flow/turbulence/horror in {{w\|Tokamak\|Tokamak}} or {{w\|Wendelstein_7-X\|Stellerator}} (and weirder) devices, it's pretty difficult to get right, hence very little fusion yet in these devices. Though it is worth noting that it is actually a simplification of particle kinetic behaviour and that it can't describe a lot of really fast time dynamics, or some of the more odd {{w\|Plasma_stability\|instabilities}}, so some poor sods (me sadly) have to use the {{w\|Particle-in-cell\|particle}} kinetic codes to simulate their plasmas.[[unsigned ip\|127.0.0.1\|20:39, 17 June 2017 (UTC)]]		{{w\|Fluid_dynamics\|Hydrodynamics}} is the study of fluids, not just liquids, as it includes solids (though usually plain hydrodynamics or radiation-hydrodynamics is used in explosion simulations, e.g. dynamite or something) as well as liquids and gases (again rad-hydro is used here lots in stellar explosions) and things that are sort of in-between or not really SL or G. Hydrodynamics is regularly treated numerically using simulations, you can't solve it analytically (unless someone claims that prize) so you integrate it {{w\|https://Numerical_integration\|bit}} by tiny bit, loads of times. MHD adds a layer of difficulty as you might expect, it's used to describe interstellar gas where the magnetic bits gets important (e.g. stellar winds, the top few layers of the sun [https://arxiv.org/pdf/1112.5925.pdf (Solar Vortex Tubes!)]), MHD is widely used in the {{w\|Magnetic_confinement_fusion\|Magnetic Confinement Fusion}} community to simulate plasma flow/turbulence/horror in {{w\|Tokamak\|Tokamak}} or {{w\|Wendelstein_7-X\|Stellerator}} (and weirder) devices, it's pretty difficult to get right, hence very little fusion yet in these devices. Though it is worth noting that it is actually a simplification of particle kinetic behaviour and that it can't describe a lot of really fast time dynamics, or some of the more odd {{w\|Plasma_stability\|instabilities}}, so some poor sods (me sadly) have to use the {{w\|Particle-in-cell\|particle}} kinetic codes to simulate their plasmas.[[unsigned ip\|127.0.0.1\|20:39, 17 June 2017 (UTC)]]